Support Ubuntu 22.04 (#411)

* Fix toolchain url

* Add 22.04 os script

* Update centos-9 stream

* Update zlib

* Upgrade dotnet version

* Add libipt

* Update toolchain extension

* Add release container

* Remove CentOS 8

* Enable arm packaging

* Add centos 9 container

* Ignore missing python virtualenv

* Add virtualenvwrapper

* Rearrange order

* Install virtualenv without user

* Run virtualenv via python

* Add logrotate dependency

* Bump up checkout action version

.clang-tidy

@@ -88,4 +88,3 @@ CheckOptions:
   - key:             modernize-use-nullptr.NullMacros
     value:           'NULL'
 ...
-

.githooks/pre-commit

@@ -24,14 +24,6 @@ for file in $modified_files; do
 
   git checkout-index --prefix="$tmpdir/" -- $file
 
-  echo "Running clang-format..."
-  $project_folder/tools/git-clang-format $tmpdir/$file
-  CODE=$?
-
-  if [ $CODE -ne 0 ]; then
-    break
-  fi
-
   # Do not break header checker
   echo "Running header checker..."
   $project_folder/tools/header-checker.py $tmpdir/$file $file --amend-year
@@ -39,7 +31,6 @@ for file in $modified_files; do
   if [ $CODE -ne 0 ]; then
     FAIL=1
   fi
-
 done;
 
 return ${FAIL}

.github/workflows/diff.yaml

@@ -112,7 +112,7 @@ jobs:
           source /opt/toolchain-v4/activate
 
           # Restrict clang-tidy results only to the modified parts
-          git diff -U0 master... -- src ':!*.hpp' | ./tools/github/clang-tidy/clang-tidy-diff.py -p 1 -j $THREADS -path build | tee ./build/clang_tidy_output.txt
+          git diff -U0 master... -- src | ./tools/github/clang-tidy/clang-tidy-diff.py -p 1 -j $THREADS -path build | tee ./build/clang_tidy_output.txt
 
           # Fail if any warning is reported
           ! cat ./build/clang_tidy_output.txt | ./tools/github/clang-tidy/grep_error_lines.sh > /dev/null

.github/workflows/package_all.yaml

@@ -6,11 +6,11 @@ on: workflow_dispatch
 
 jobs:
   centos-7:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -22,29 +22,29 @@ jobs:
           name: centos-7
           path: build/output/centos-7/memgraph*.rpm
 
-  centos-8:
-    runs-on: [self-hosted, DockerMgBuild]
+  centos-9:
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
         run: |
-          ./release/package/run.sh package centos-8
+          ./release/package/run.sh package centos-9
       - name: "Upload package"
         uses: actions/upload-artifact@v2
         with:
-          name: centos-8
-          path: build/output/centos-8/memgraph*.rpm
+          name: centos-9
+          path: build/output/centos-9/memgraph*.rpm
 
   debian-10:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -57,11 +57,11 @@ jobs:
           path: build/output/debian-10/memgraph*.deb
 
   debian-11:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -74,11 +74,11 @@ jobs:
           path: build/output/debian-11/memgraph*.deb
 
   docker:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -93,11 +93,11 @@ jobs:
           path: build/output/docker/memgraph*.tar.gz
 
   ubuntu-1804:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -110,11 +110,11 @@ jobs:
           path: build/output/ubuntu-18.04/memgraph*.deb
 
   ubuntu-2004:
-    runs-on: [self-hosted, DockerMgBuild]
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -126,12 +126,29 @@ jobs:
           name: ubuntu-2004
           path: build/output/ubuntu-20.04/memgraph*.deb
 
-  debian-11-platform:
-    runs-on: [self-hosted, DockerMgBuild]
+  ubuntu-2204:
+    runs-on: [self-hosted, DockerMgBuild, X64]
     timeout-minutes: 60
     steps:
       - name: "Set up repository"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package ubuntu-22.04
+      - name: "Upload package"
+        uses: actions/upload-artifact@v2
+        with:
+          name: ubuntu-2204
+          path: build/output/ubuntu-22.04/memgraph*.deb
+
+  debian-11-platform:
+    runs-on: [self-hosted, DockerMgBuild, X64]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # Required because of release/get_version.py
       - name: "Build package"
@@ -142,3 +159,20 @@ jobs:
         with:
           name: debian-11-platform
           path: build/output/debian-11/memgraph*.deb
+
+  debian-11-arm:
+    runs-on: [self-hosted, DockerMgBuild, ARM64, strange]
+    timeout-minutes: 60
+    steps:
+      - name: "Set up repository"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Required because of release/get_version.py
+      - name: "Build package"
+        run: |
+          ./release/package/run.sh package debian-11-arm
+      - name: "Upload package"
+        uses: actions/upload-artifact@v2
+        with:
+          name: debian-11
+          path: build/output/debian-11/memgraph*.deb

.pre-commit-config.yaml

@@ -0,0 +1,24 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.3.0
+    hooks:
+      - id: check-yaml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://github.com/psf/black
+    rev: 22.3.0
+    hooks:
+      - id: black
+        args: # arguments to configure black
+          - --line-length=120
+          - --include='\.pyi?$'
+          # these folders wont be formatted by black
+          - --exclude="""\.git |
+            \.__pycache__|
+            build|
+            libs|
+            .cache"""
+  - repo: https://github.com/pre-commit/mirrors-clang-format
+    rev: v13.0.0
+    hooks:
+      - id: clang-format

CMakeLists.txt

@@ -54,7 +54,7 @@ option(MG_ENTERPRISE "Build Memgraph Enterprise Edition" ON)
 # Set the current version here to override the automatic version detection. The
 # version must be specified as `X.Y.Z`. Primarily used when building new patch
 # versions.
-set(MEMGRAPH_OVERRIDE_VERSION "")
+set(MEMGRAPH_OVERRIDE_VERSION "2.3.1")
 
 # Custom suffix that this version should have. The suffix can be any arbitrary
 # string. Primarily used when building a version for a specific customer.

config/flags.yaml

@@ -47,6 +47,14 @@ modifications:
     value: ""
     override: false
 
+  - name: "bolt_cert_file"
+    value: "/etc/memgraph/ssl/cert.pem"
+    override: false
+
+  - name: "bolt_key_file"
+    value: "/etc/memgraph/ssl/key.pem"
+    override: false
+
   - name: "storage_properties_on_edges"
     value: "true"
     override: true

environment/os/centos-8.sh

@@ -1,161 +0,0 @@
-#!/bin/bash
-
-set -Eeuo pipefail
-
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-source "$DIR/../util.sh"
-
-TOOLCHAIN_BUILD_DEPS=(
-    coreutils-common gcc gcc-c++ make # generic build tools
-    wget # used for archive download
-    gnupg2 # used for archive signature verification
-    tar gzip bzip2 xz unzip # used for archive unpacking
-    zlib-devel # zlib library used for all builds
-    expat-devel libipt libipt-devel libbabeltrace-devel xz-devel python36-devel texinfo # for gdb
-    libcurl-devel # for cmake
-    curl # snappy
-    readline-devel # for cmake and llvm
-    libffi-devel libxml2-devel # for llvm
-    libedit-devel pcre-devel automake bison # for swig
-    file
-    openssl-devel
-    gmp-devel
-    gperf
-    patch
-)
-
-TOOLCHAIN_RUN_DEPS=(
-    make # generic build tools
-    tar gzip bzip2 xz # used for archive unpacking
-    zlib # zlib library used for all builds
-    expat libipt libbabeltrace xz-libs python36 # for gdb
-    readline # for cmake and llvm
-    libffi libxml2 # for llvm
-    openssl-devel
-)
-
-MEMGRAPH_BUILD_DEPS=(
-    git # source code control
-    make pkgconf-pkg-config # build system
-    curl wget # for downloading libs
-    libuuid-devel java-11-openjdk # required by antlr
-    readline-devel # for memgraph console
-    python36-devel # for query modules
-    openssl-devel
-    libseccomp-devel
-    python36 python3-virtualenv python3-pip nmap-ncat # for qa, macro_benchmark and stress tests
-    #
-    # IMPORTANT: python3-yaml does NOT exist on CentOS
-    # Install it manually using `pip3 install PyYAML`
-    #
-    PyYAML # Package name here does not correspond to the yum package!
-    libcurl-devel # mg-requests
-    rpm-build rpmlint # for RPM package building
-    doxygen graphviz # source documentation generators
-    which mono-complete dotnet-sdk-3.1 nodejs golang zip unzip java-11-openjdk-devel # for driver tests
-    sbcl # for custom Lisp C++ preprocessing
-    autoconf # for jemalloc code generation
-    libtool  # for protobuf code generation
-)
-
-list() {
-    echo "$1"
-}
-
-check() {
-    local missing=""
-    for pkg in $1; do
-        if [ "$pkg" == "PyYAML" ]; then
-            if ! python3 -c "import yaml" >/dev/null 2>/dev/null; then
-                missing="$pkg $missing"
-            fi
-            continue
-        fi
-        if ! yum list installed "$pkg" >/dev/null 2>/dev/null; then
-            missing="$pkg $missing"
-        fi
-    done
-    if [ "$missing" != "" ]; then
-        echo "MISSING PACKAGES: $missing"
-        exit 1
-    fi
-}
-
-install() {
-    cd "$DIR"
-    if [ "$EUID" -ne 0 ]; then
-        echo "Please run as root."
-        exit 1
-    fi
-    # If GitHub Actions runner is installed, append LANG to the environment.
-    # Python related tests doesn't work the LANG export.
-    if [ -d "/home/gh/actions-runner" ]; then
-        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
-    else
-        echo "NOTE: export LANG=en_US.utf8"
-    fi
-    dnf install -y epel-release
-    dnf install -y 'dnf-command(config-manager)'
-    dnf config-manager --set-enabled powertools # Required to install texinfo.
-    dnf update -y
-    dnf install -y wget git python36 python3-pip
-    for pkg in $1; do
-        if [ "$pkg" == libipt ]; then
-            if ! dnf list installed libipt >/dev/null 2>/dev/null; then
-                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-1.6.1-8.el8.x86_64.rpm
-            fi
-            continue
-        fi
-        if [ "$pkg" == libipt-devel ]; then
-            if ! yum list installed libipt-devel >/dev/null 2>/dev/null; then
-                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-devel-1.6.1-8.el8.x86_64.rpm
-            fi
-            continue
-        fi
-        # Install GDB dependencies not present in the standard repos.
-        # https://bugs.centos.org/view.php?id=17068
-        # https://centos.pkgs.org
-	    # Since 2020, there is Babeltrace2 (https://babeltrace.org). Not used
-        # within GDB yet (an assumption).
-        # http://mirror.centos.org/centos/8/PowerTools/x86_64/os/Packages/libbabeltrace-devel-1.5.4-3.el8.x86_64.rpm not working
-        if [ "$pkg" == libbabeltrace-devel ]; then
-            if ! dnf list installed libbabeltrace-devel >/dev/null 2>/dev/null; then
-                dnf install -y https://rpmfind.net/linux/centos/8-stream/PowerTools/x86_64/os/Packages/libbabeltrace-devel-1.5.4-3.el8.x86_64.rpm
-            fi
-            continue
-        fi
-        if [ "$pkg" == sbcl ]; then
-            if ! dnf list installed cl-asdf >/dev/null 2>/dev/null; then
-                dnf install -y 	https://pkgs.dyn.su/el8/base/x86_64/cl-asdf-20101028-18.el8.noarch.rpm
-            fi
-            if ! dnf list installed common-lisp-controller >/dev/null 2>/dev/null; then
-                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/common-lisp-controller-7.4-20.el8.noarch.rpm
-            fi
-            if ! dnf list installed sbcl >/dev/null 2>/dev/null; then
-                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/sbcl-2.0.1-4.el8.x86_64.rpm
-            fi
-            continue
-        fi
-        if [ "$pkg" == dotnet-sdk-3.1 ]; then
-            if ! dnf list installed dotnet-sdk-3.1 >/dev/null 2>/dev/null; then
-                wget -nv https://packages.microsoft.com/config/centos/8/packages-microsoft-prod.rpm -O packages-microsoft-prod.rpm
-                rpm -Uvh https://packages.microsoft.com/config/centos/8/packages-microsoft-prod.rpm
-                dnf update -y
-                dnf install -y dotnet-sdk-3.1
-            fi
-            continue
-        fi
-        if [ "$pkg" == PyYAML ]; then
-            if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
-                pip3 install --user PyYAML
-            else # Running using sudo.
-                sudo -H -u "$SUDO_USER" bash -c "pip3 install --user PyYAML"
-            fi
-            continue
-        fi
-        dnf install -y "$pkg"
-    done
-}
-
-deps=$2"[*]"
-"$1" "${!deps}"

environment/os/centos-9.sh

@@ -6,14 +6,12 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 source "$DIR/../util.sh"
 
 TOOLCHAIN_BUILD_DEPS=(
-    coreutils gcc gcc-c++ make # generic build tools
+    coreutils-common gcc gcc-c++ make # generic build tools
     wget # used for archive download
     gnupg2 # used for archive signature verification
     tar gzip bzip2 xz unzip # used for archive unpacking
     zlib-devel # zlib library used for all builds
-    expat-devel xz-devel python3-devel texinfo # for gdb
-    libcurl-devel # for cmake
-    curl # snappy
+    expat-devel xz-devel python3-devel texinfo libbabeltrace-devel # for gdb
     readline-devel # for cmake and llvm
     libffi-devel libxml2-devel # for llvm
     libedit-devel pcre-devel automake bison # for swig
@@ -21,6 +19,9 @@ TOOLCHAIN_BUILD_DEPS=(
     openssl-devel
     gmp-devel
     gperf
+    diffutils
+    libipt libipt-devel # intel
+    patch
 )
 
 TOOLCHAIN_RUN_DEPS=(
@@ -31,18 +32,19 @@ TOOLCHAIN_RUN_DEPS=(
     readline # for cmake and llvm
     libffi libxml2 # for llvm
     openssl-devel
+    perl # for openssl
 )
 
 MEMGRAPH_BUILD_DEPS=(
     git # source code control
     make pkgconf-pkg-config # build system
-    curl wget # for downloading libs
+    wget # for downloading libs
     libuuid-devel java-11-openjdk # required by antlr
     readline-devel # for memgraph console
     python3-devel # for query modules
     openssl-devel
     libseccomp-devel
-    python3 python3-virtualenv python3-pip nmap-ncat # for qa, macro_benchmark and stress tests
+    python3 python3-pip python3-virtualenv nmap-ncat # for qa, macro_benchmark and stress tests
     #
     # IMPORTANT: python3-yaml does NOT exist on CentOS
     # Install it manually using `pip3 install PyYAML`
@@ -73,12 +75,6 @@ check() {
         if [ "$pkg" == "python3-virtualenv" ]; then
             continue
         fi
-        if [ "$pkg" == sbcl ]; then
-            if ! sbcl --version &> /dev/null; then
-	        missing="$pkg $missing"
-            fi
-            continue
-        fi
         if ! yum list installed "$pkg" >/dev/null 2>/dev/null; then
             missing="$pkg $missing"
         fi
@@ -105,13 +101,37 @@ install() {
     yum update -y
     yum install -y wget git python3 python3-pip
     for pkg in $1; do
+        # Since there is no support for libipt-devel for CentOS 9 we install
+        # Fedoras version of same libs, they are the same version but released
+        # for different OS
+        # TODO Update when libipt-devel releases for CentOS 9
+        if [ "$pkg" == libipt ]; then
+            if ! dnf list installed libipt >/dev/null 2>/dev/null; then
+                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libipt-devel ]; then
+            if ! dnf list installed libipt-devel >/dev/null 2>/dev/null; then
+                dnf install -y http://repo.okay.com.mx/centos/8/x86_64/release/libipt-devel-1.6.1-8.el8.x86_64.rpm
+            fi
+            continue
+        fi
+        if [ "$pkg" == libbabeltrace-devel ]; then
+            if ! dnf list installed libbabeltrace-devel >/dev/null 2>/dev/null; then
+                dnf install -y http://mirror.stream.centos.org/9-stream/CRB/x86_64/os/Packages/libbabeltrace-devel-1.5.8-10.el9.x86_64.rpm
+            fi
+            continue
+        fi
         if [ "$pkg" == sbcl ]; then
-            if ! sbcl --version &> /dev/null; then
-	        curl -s https://altushost-swe.dl.sourceforge.net/project/sbcl/sbcl/1.4.2/sbcl-1.4.2-arm64-linux-binary.tar.bz2 -o /tmp/sbcl-arm64.tar.bz2
-		tar xvjf /tmp/sbcl-arm64.tar.bz2 -C /tmp
-		pushd /tmp/sbcl-1.4.2-arm64-linux
-		INSTALL_ROOT=/usr/local sh install.sh
-		popd
+            if ! dnf list installed cl-asdf >/dev/null 2>/dev/null; then
+                dnf install -y 	https://pkgs.dyn.su/el8/base/x86_64/cl-asdf-20101028-18.el8.noarch.rpm
+            fi
+            if ! dnf list installed common-lisp-controller >/dev/null 2>/dev/null; then
+                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/common-lisp-controller-7.4-20.el8.noarch.rpm
+            fi
+            if ! dnf list installed sbcl >/dev/null 2>/dev/null; then
+                dnf install -y https://pkgs.dyn.su/el8/base/x86_64/sbcl-2.0.1-4.el8.x86_64.rpm
             fi
             continue
         fi
@@ -125,9 +145,11 @@ install() {
         fi
         if [ "$pkg" == python3-virtualenv ]; then
             if [ -z ${SUDO_USER+x} ]; then # Running as root (e.g. Docker).
-                pip3 install --user virtualenv
+                pip3 install virtualenv
+                pip3 install virtualenvwrapper
             else # Running using sudo.
-                sudo -H -u "$SUDO_USER" bash -c "pip3 install --user virtualenv"
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install virtualenv"
+                sudo -H -u "$SUDO_USER" bash -c "pip3 install virtualenvwrapper"
             fi
             continue
         fi

environment/os/debian-11-arm.sh

@@ -87,15 +87,6 @@ EOF
     fi
     apt install -y wget
     for pkg in $1; do
-        if [ "$pkg" == dotnet-sdk-3.1 ]; then
-            if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
-                wget -nv https://packages.microsoft.com/config/debian/10/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
-                dpkg -i packages-microsoft-prod.deb
-                apt-get update
-                apt-get install -y apt-transport-https dotnet-sdk-3.1
-            fi
-            continue
-        fi
         apt install -y "$pkg"
     done
 }

environment/os/debian-11.sh

@@ -87,7 +87,7 @@ EOF
     fi
     apt install -y wget
     for pkg in $1; do
-        if [ "$pkg" == dotnet-sdk-3.1 ]; then
+        if [ "$pkg" == dotnet-sdk-3.1  ]; then
             if ! dpkg -s "$pkg" 2>/dev/null >/dev/null; then
                 wget -nv https://packages.microsoft.com/config/debian/10/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
                 dpkg -i packages-microsoft-prod.deb

environment/os/ubuntu-22.04.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "$DIR/../util.sh"
+
+TOOLCHAIN_BUILD_DEPS=(
+    coreutils gcc g++ build-essential make # generic build tools
+    wget # used for archive download
+    gnupg # used for archive signature verification
+    tar gzip bzip2 xz-utils unzip # used for archive unpacking
+    zlib1g-dev # zlib library used for all builds
+    libexpat1-dev libipt-dev libbabeltrace-dev liblzma-dev python3-dev texinfo # for gdb
+    libcurl4-openssl-dev # for cmake
+    libreadline-dev # for cmake and llvm
+    libffi-dev libxml2-dev # for llvm
+    curl # snappy
+    file
+    git # for thrift
+    libgmp-dev # for gdb
+    gperf # for proxygen
+    libssl-dev
+    libedit-dev libpcre3-dev automake bison # for swig
+)
+
+TOOLCHAIN_RUN_DEPS=(
+    make # generic build tools
+    tar gzip bzip2 xz-utils # used for archive unpacking
+    zlib1g # zlib library used for all builds
+    libexpat1 libipt2 libbabeltrace1 liblzma5 python3 # for gdb
+    libcurl4 # for cmake
+    libreadline8 # for cmake and llvm
+    libffi7 libxml2 # for llvm
+    libssl-dev # for libevent
+)
+
+MEMGRAPH_BUILD_DEPS=(
+    git # source code control
+    make pkg-config # build system
+    curl wget # for downloading libs
+    uuid-dev default-jre-headless # required by antlr
+    libreadline-dev # for memgraph console
+    libpython3-dev python3-dev # for query modules
+    libssl-dev
+    libseccomp-dev
+    netcat # tests are using nc to wait for memgraph
+    python3 python3-virtualenv python3-pip # for qa, macro_benchmark and stress tests
+    python3-yaml # for the configuration generator
+    libcurl4-openssl-dev # mg-requests
+    sbcl # for custom Lisp C++ preprocessing
+    doxygen graphviz # source documentation generators
+    mono-runtime mono-mcs zip unzip default-jdk-headless # for driver tests
+    dotnet-sdk-6.0 golang nodejs npm
+    autoconf # for jemalloc code generation
+    libtool  # for protobuf code generation
+)
+
+list() {
+    echo "$1"
+}
+
+check() {
+    check_all_dpkg "$1"
+}
+
+install() {
+    cd "$DIR"
+    apt update
+    # If GitHub Actions runner is installed, append LANG to the environment.
+    # Python related tests doesn't work the LANG export.
+    if [ -d "/home/gh/actions-runner" ]; then
+        echo "LANG=en_US.utf8" >> /home/gh/actions-runner/.env
+    else
+        echo "NOTE: export LANG=en_US.utf8"
+    fi
+    apt install -y wget
+    for pkg in $1; do
+        if [ "$pkg" == dotnet-sdk-6.0 ]; then
+            if ! dpkg -s dotnet-sdk-6.0 2>/dev/null >/dev/null; then
+                wget -nv https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+                dpkg -i packages-microsoft-prod.deb
+                apt-get update
+                apt-get install -y apt-transport-https dotnet-sdk-6.0
+            fi
+            continue
+        fi
+        apt install -y "$pkg"
+    done
+}
+
+deps=$2"[*]"
+"$1" "${!deps}"

environment/toolchain/v4.sh

@@ -675,7 +675,7 @@ PROXYGEN_SHA256=5360a8ccdfb2f5a6c7b3eed331ec7ab0e2c792d579c6fff499c85c516c11fe14
 SNAPPY_SHA256=75c1fbb3d618dd3a0483bff0e26d0a92b495bbe5059c8b4f1c962b478b6e06e7
 SNAPPY_VERSION=1.1.9
 XZ_VERSION=5.2.5 # for LZMA
-ZLIB_VERSION=1.2.11
+ZLIB_VERSION=1.2.12
 ZSTD_VERSION=1.5.0
 WANGLE_SHA256=1002e9c32b6f4837f6a760016e3b3e22f3509880ef3eaad191c80dc92655f23f
 
@@ -1178,12 +1178,21 @@ popd
 
 # create toolchain archive
 if [ ! -f $NAME-binaries-$DISTRO.tar.gz ]; then
-    DISTRO_FULL_NAME=$DISTRO
-    if [ "$for_arm" = true ]; then
-        DISTRO_FULL_NAME="$DISTRO_FULL_NAME-aarch64"
+    DISTRO_FULL_NAME=${DISTRO}
+    if [[ "${DISTRO}" == centos* ]]; then
+        if [[ "$for_arm" = "true" ]]; then
+            DISTRO_FULL_NAME="$DISTRO_FULL_NAME-aarch64"
+        else
+            DISTRO_FULL_NAME="$DISTRO_FULL_NAME-x86_64"
+        fi
     else
-        DISTRO_FULL_NAME="$DISTRO_FULL_NAME-x86_64"
+        if [[ "$for_arm" = "true" ]]; then
+            DISTRO_FULL_NAME="$DISTRO_FULL_NAME-arm64"
+        else
+            DISTRO_FULL_NAME="$DISTRO_FULL_NAME-amd64"
+        fi
     fi
+
     tar --owner=root --group=root -cpvzf $NAME-binaries-$DISTRO_FULL_NAME.tar.gz -C /opt $NAME
 fi
 

include/mgp.py

@@ -1179,16 +1179,15 @@ def read_proc(func: typing.Callable[..., Record]):
     """
     Register `func` as a read-only procedure of the current module.
 
-    `read_proc` is meant to be used as a decorator function to register module
-    procedures. The registered `func` needs to be a callable which optionally
-    takes `ProcCtx` as the first argument. Other arguments of `func` will be
-    bound to values passed in the cypherQuery. The full signature of `func`
-    needs to be annotated with types. The return type must be
-    `Record(field_name=type, ...)` and the procedure must produce either a
-    complete Record or None. To mark a field as deprecated, use
-    `Record(field_name=Deprecated(type), ...)`. Multiple records can be
-    produced by returning an iterable of them. Registering generator functions
-    is currently not supported.
+    The decorator `read_proc` is meant to be used to register module procedures.
+    The registered `func` needs to be a callable which optionally takes
+    `ProcCtx` as its first argument. Other arguments of `func` will be bound to
+    values passed in the cypherQuery. The full signature of `func` needs to be
+    annotated with types. The return type must be `Record(field_name=type, ...)`
+    and the procedure must produce either a complete Record or None. To mark a
+    field as deprecated, use `Record(field_name=Deprecated(type), ...)`.
+    Multiple records can be produced by returning an iterable of them.
+    Registering generator functions is currently not supported.
 
     Example usage.
 
@@ -1222,16 +1221,16 @@ def write_proc(func: typing.Callable[..., Record]):
     """
     Register `func` as a writeable procedure of the current module.
 
-    `write_proc` is meant to be used as a decorator function to register module
+    The decorator `write_proc` is meant to be used to register module
     procedures. The registered `func` needs to be a callable which optionally
     takes `ProcCtx` as the first argument. Other arguments of `func` will be
     bound to values passed in the cypherQuery. The full signature of `func`
     needs to be annotated with types. The return type must be
     `Record(field_name=type, ...)` and the procedure must produce either a
     complete Record or None. To mark a field as deprecated, use
-    `Record(field_name=Deprecated(type), ...)`. Multiple records can be
-    produced by returning an iterable of them. Registering generator functions
-    is currently not supported.
+    `Record(field_name=Deprecated(type), ...)`. Multiple records can be produced
+    by returning an iterable of them. Registering generator functions is
+    currently not supported.
 
     Example usage.
 
@@ -1459,8 +1458,9 @@ def transformation(func: typing.Callable[..., Record]):
 class FuncCtx:
     """Context of a function being executed.
 
-    Access to a FuncCtx is only valid during a single execution of a transformation.
-    You should not globally store a FuncCtx instance.
+    Access to a FuncCtx is only valid during a single execution of a function in
+    a query. You should not globally store a FuncCtx instance. The graph object
+    within the FuncCtx is not mutable.
     """
 
     __slots__ = "_graph"
@@ -1475,6 +1475,45 @@ class FuncCtx:
 
 
 def function(func: typing.Callable):
+    """
+    Register `func` as a user-defined function in the current module.
+
+    The decorator `function` is meant to be used to register module functions.
+    The registered `func` needs to be a callable which optionally takes
+    `FuncCtx` as its first argument. Other arguments of `func` will be bound to
+    values passed in the Cypher query. Only the funcion arguments need to be
+    annotated with types. The return type doesn't need to be specified, but it
+    has to be supported by `mgp.Any`. Registering generator functions is
+    currently not supported.
+
+    Example usage.
+
+    ```
+    import mgp
+    @mgp.function
+    def func_example(context: mgp.FuncCtx,
+        required_arg: str,
+        optional_arg: mgp.Nullable[str] = None
+        ):
+        return_args = [required_arg]
+        if optional_arg is not None:
+            return_args.append(optional_arg)
+        # Return any kind of result supported by mgp.Any
+        return return_args
+    ```
+
+    The example function above returns a list of provided arguments:
+      * `required_arg` is always present and its value is the first argument of
+        the function.
+      * `optional_arg` is present if the second argument of the function is not
+        `null`.
+    Any errors can be reported by raising an Exception.
+
+    The function can be invoked in Cypher using the following calls:
+      RETURN example.func_example("first argument", "second_argument");
+      RETURN example.func_example("first argument");
+    Naturally, you may pass in different arguments.
+    """
     raise_if_does_not_meet_requirements(func)
     register_func = _mgp.Module.add_function
     sig = inspect.signature(func)

init

@@ -24,7 +24,7 @@ function setup_virtualenv () {
     fi
 
     # create new virtualenv
-    virtualenv -p python3 ve3 || exit 1
+    python3 -m virtualenv -p python3 ve3 || exit 1
     source ve3/bin/activate
     pip --timeout 1000 install -r requirements.txt || exit 1
     deactivate
@@ -66,7 +66,7 @@ fi
 
 DISTRO=$(operating_system)
 ARCHITECTURE=$(architecture)
-if [ "${ARCHITECTURE}" = "arm64" ]; then
+if [ "${ARCHITECTURE}" = "arm64" ] || [ "${ARCHITECTURE}" = "aarch64" ]; then
   OS_SCRIPT=$DIR/environment/os/$DISTRO-arm.sh
 else
   OS_SCRIPT=$DIR/environment/os/$DISTRO.sh
@@ -135,3 +135,7 @@ for hook in $(find $DIR/.githooks -type f -printf "%f\n"); do
   ln -s -f "$DIR/.githooks/$hook" "$DIR/.git/hooks/$hook"
   echo "Added $hook hook"
 done;
+
+# Install precommit hook
+python3 -m pip install pre-commit
+python3 -m pre_commit install

libs/.gitignore

@@ -4,5 +4,4 @@
 !cleanup.sh
 !CMakeLists.txt
 !__main.cpp
-!jemalloc.cmake
 !pulsar.patch

libs/jemalloc.cmake

@@ -1,55 +0,0 @@
-set(JEMALLOC_DIR "${LIB_DIR}/jemalloc")
-
-set(JEMALLOC_SRCS
-    ${JEMALLOC_DIR}/src/arena.c
-    ${JEMALLOC_DIR}/src/background_thread.c
-    ${JEMALLOC_DIR}/src/base.c
-    ${JEMALLOC_DIR}/src/bin.c
-    ${JEMALLOC_DIR}/src/bitmap.c
-    ${JEMALLOC_DIR}/src/ckh.c
-    ${JEMALLOC_DIR}/src/ctl.c
-    ${JEMALLOC_DIR}/src/div.c
-    ${JEMALLOC_DIR}/src/extent.c
-    ${JEMALLOC_DIR}/src/extent_dss.c
-    ${JEMALLOC_DIR}/src/extent_mmap.c
-    ${JEMALLOC_DIR}/src/hash.c
-    ${JEMALLOC_DIR}/src/hook.c
-    ${JEMALLOC_DIR}/src/jemalloc.c
-    ${JEMALLOC_DIR}/src/large.c
-    ${JEMALLOC_DIR}/src/log.c
-    ${JEMALLOC_DIR}/src/malloc_io.c
-    ${JEMALLOC_DIR}/src/mutex.c
-    ${JEMALLOC_DIR}/src/mutex_pool.c
-    ${JEMALLOC_DIR}/src/nstime.c
-    ${JEMALLOC_DIR}/src/pages.c
-    ${JEMALLOC_DIR}/src/prng.c
-    ${JEMALLOC_DIR}/src/prof.c
-    ${JEMALLOC_DIR}/src/rtree.c
-    ${JEMALLOC_DIR}/src/sc.c
-    ${JEMALLOC_DIR}/src/stats.c
-    ${JEMALLOC_DIR}/src/sz.c
-    ${JEMALLOC_DIR}/src/tcache.c
-    ${JEMALLOC_DIR}/src/test_hooks.c
-    ${JEMALLOC_DIR}/src/ticker.c
-    ${JEMALLOC_DIR}/src/tsd.c
-    ${JEMALLOC_DIR}/src/witness.c
-    ${JEMALLOC_DIR}/src/safety_check.c
-)
-
-add_library(jemalloc ${JEMALLOC_SRCS})
-target_include_directories(jemalloc PUBLIC "${JEMALLOC_DIR}/include")
-
-find_package(Threads REQUIRED)
-target_link_libraries(jemalloc PUBLIC Threads::Threads)
-
-target_compile_definitions(jemalloc PRIVATE -DJEMALLOC_NO_PRIVATE_NAMESPACE)
-
-if (CMAKE_BUILD_TYPE STREQUAL "DEBUG")
-    target_compile_definitions(jemalloc PRIVATE -DJEMALLOC_DEBUG=1 -DJEMALLOC_PROF=1)
-endif()
-
-target_compile_options(jemalloc PRIVATE -Wno-redundant-decls)
-# for RTLD_NEXT
-target_compile_definitions(jemalloc PRIVATE _GNU_SOURCE)
-
-set_property(TARGET jemalloc APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS USE_JEMALLOC=1)

licenses/BSL.txt

@@ -36,7 +36,7 @@ ADDITIONAL USE GRANT:   You may use the Licensed Work in accordance with the
                         3. using the Licensed Work to create a work or solution
                         which competes (or might reasonably be expected to
                         compete) with the Licensed Work.
-CHANGE DATE:            2026-27-04
+CHANGE DATE:            2026-16-06
 CHANGE LICENSE:         Apache License, Version 2.0
 
 For information about alternative licensing arrangements, please visit: https://memgraph.com/legal.

release/CMakeLists.txt

@@ -41,7 +41,7 @@ set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "${CPACK_PACKAGE_DESCRIPTION_SUMMARY}
  applications driver by real-time connected data.")
 # Add `openssl` package to dependencies list. Used to generate SSL certificates.
 # We also depend on `python3` because we embed it in Memgraph.
-set(CPACK_DEBIAN_PACKAGE_DEPENDS "openssl (>= 1.1.0), python3 (>= 3.5.0)")
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "openssl (>= 1.1.0), python3 (>= 3.5.0), libstdc++6")
 
 # Setting arhitecture extension for rpm packages
 set(MG_ARCH_EXTENSION_RPM "noarch")
@@ -67,7 +67,7 @@ It aims to deliver developers the speed, simplicity and scale required to build
 the next generation of applications driver by real-time connected data.")
 # Add `openssl` package to dependencies list. Used to generate SSL certificates.
 # We also depend on `python3` because we embed it in Memgraph.
-set(CPACK_RPM_PACKAGE_REQUIRES "openssl >= 1.0.0, curl >= 7.29.0, python3 >= 3.5.0")
+set(CPACK_RPM_PACKAGE_REQUIRES "openssl >= 1.0.0, curl >= 7.29.0, python3 >= 3.5.0, libstdc >= 6, logrotate")
 
 # All variables must be set before including.
 include(CPack)

release/docker/memgraph_rpm.dockerfile

@@ -1,31 +0,0 @@
-FROM dokken/centos-stream-9
-# NOTE: If you change the base distro update release/package as well.
-
-ARG release
-
-RUN yum update && yum install -y \
-    openssl libcurl libseccomp python3 python3-pip \
-    --nobest --allowerasing \
-  && rm -rf /tmp/* \
-  && yum clean all
-
-RUN pip3 install networkx==2.4 numpy==1.21.4 scipy==1.7.3
-
-COPY ${release} /
-
-# Install memgraph package
-RUN rpm -i ${release}
-
-# Memgraph listens for Bolt Protocol on this port by default.
-EXPOSE 7687
-# Snapshots and logging volumes
-VOLUME /var/log/memgraph
-VOLUME /var/lib/memgraph
-# Configuration volume
-VOLUME /etc/memgraph
-
-USER memgraph
-WORKDIR /usr/lib/memgraph
-
-ENTRYPOINT ["/usr/lib/memgraph/memgraph"]
-CMD [""]

release/package/centos-7/Dockerfile

@@ -7,8 +7,8 @@ RUN yum -y update \
 # Do NOT be smart here and clean the cache because the container is used in the
 # stateful context.
 
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-centos-7.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-centos-7.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-centos-7.tar.gz -C /opt
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-centos-7-x86_64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-centos-7-x86_64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-centos-7-x86_64.tar.gz -C /opt
 
 ENTRYPOINT ["sleep", "infinity"]

release/package/centos-8/Dockerfile

@@ -1,14 +0,0 @@
-FROM centos:8
-
-ARG TOOLCHAIN_VERSION
-
-RUN dnf -y update \
-    && dnf install -y wget git
-# Do NOT be smart here and clean the cache because the container is used in the
-# stateful context.
-
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-centos-8.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-centos-8.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-centos-8.tar.gz -C /opt
-
-ENTRYPOINT ["sleep", "infinity"]

release/package/centos-9/Dockerfile

@@ -0,0 +1,14 @@
+FROM quay.io/centos/centos:stream9
+
+ARG TOOLCHAIN_VERSION
+
+RUN yum -y update \
+    && yum install -y wget git
+# Do NOT be smart here and clean the cache because the container is used in the
+# stateful context.
+
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-centos-9-x86_64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-centos-9-x86_64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-centos-9-x86_64.tar.gz -C /opt
+
+ENTRYPOINT ["sleep", "infinity"]

release/package/debian-10/Dockerfile

@@ -10,8 +10,8 @@ RUN apt update && apt install -y \
 # Do NOT be smart here and clean the cache because the container is used in the
 # stateful context.
 
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-debian-10.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-debian-10.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-debian-10.tar.gz -C /opt
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-debian-10-amd64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-debian-10-amd64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-debian-10-amd64.tar.gz -C /opt
 
 ENTRYPOINT ["sleep", "infinity"]

release/package/debian-11-arm/Dockerfile

@@ -0,0 +1,17 @@
+FROM debian:11
+
+ARG TOOLCHAIN_VERSION
+
+# Stops tzdata interactive configuration.
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && apt install -y \
+    ca-certificates wget git
+# Do NOT be smart here and clean the cache because the container is used in the
+# stateful context.
+
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-debian-11-arm64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-debian-11-arm64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-debian-11-arm64.tar.gz -C /opt
+
+ENTRYPOINT ["sleep", "infinity"]

release/package/debian-11/Dockerfile

@@ -10,8 +10,8 @@ RUN apt update && apt install -y \
 # Do NOT be smart here and clean the cache because the container is used in the
 # stateful context.
 
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-debian-11.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-debian-11.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-debian-11.tar.gz -C /opt
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-debian-11-amd64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-debian-11-amd64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-debian-11-amd64.tar.gz -C /opt
 
 ENTRYPOINT ["sleep", "infinity"]

release/package/docker-compose.yml

@@ -4,10 +4,10 @@ services:
     build:
       context: centos-7
     container_name: "mgbuild_centos-7"
-  mgbuild_centos-8:
+  mgbuild_centos-9:
     build:
-      context: centos-8
-    container_name: "mgbuild_centos-8"
+      context: centos-9
+    container_name: "mgbuild_centos-9"
   mgbuild_debian-10:
     build:
       context: debian-10
@@ -24,3 +24,7 @@ services:
     build:
       context: ubuntu-20.04
     container_name: "mgbuild_ubuntu-20.04"
+  mgbuild_ubuntu-22.04:
+    build:
+      context: ubuntu-22.04
+    container_name: "mgbuild_ubuntu-22.04"

release/package/run.sh

@@ -3,7 +3,7 @@
 set -Eeuo pipefail
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-SUPPORTED_OS=(centos-7 centos-8 debian-10 debian-11 ubuntu-18.04 ubuntu-20.04)
+SUPPORTED_OS=(centos-7 centos-9 debian-10 debian-11 ubuntu-18.04 ubuntu-20.04 ubuntu-22.04 debian-11-arm)
 PROJECT_ROOT="$SCRIPT_DIR/../.."
 TOOLCHAIN_VERSION="toolchain-v4"
 ACTIVATE_TOOLCHAIN="source /opt/${TOOLCHAIN_VERSION}/activate"
@@ -67,14 +67,18 @@ make_package () {
     # environment/os/{os}.sh does not come within the toolchain package. When
     # migrating to the next version of toolchain do that, and remove the
     # TOOLCHAIN_RUN_DEPS installation from here.
-    echo "Installing dependencies..."
+    echo "Installing dependencies using '/memgraph/environment/os/$os.sh' script..."
     docker exec "$build_container" bash -c "/memgraph/environment/os/$os.sh install TOOLCHAIN_RUN_DEPS"
     docker exec "$build_container" bash -c "/memgraph/environment/os/$os.sh install MEMGRAPH_BUILD_DEPS"
 
     echo "Building targeted package..."
     docker exec "$build_container" bash -c "cd /memgraph && $ACTIVATE_TOOLCHAIN && ./init"
     docker exec "$build_container" bash -c "cd $container_build_dir && rm -rf ./*"
-    docker exec "$build_container" bash -c "cd $container_build_dir && $ACTIVATE_TOOLCHAIN && cmake -DCMAKE_BUILD_TYPE=release $telemetry_id_override_flag .."
+    if [[ "$os" == "debian-11-arm" ]]; then
+        docker exec "$build_container" bash -c "cd $container_build_dir && $ACTIVATE_TOOLCHAIN && cmake -DCMAKE_BUILD_TYPE=release -DMG_ARCH="ARM64" $telemetry_id_override_flag .."
+    else
+        docker exec "$build_container" bash -c "cd $container_build_dir && $ACTIVATE_TOOLCHAIN && cmake -DCMAKE_BUILD_TYPE=release $telemetry_id_override_flag .."
+    fi
     # ' is used instead of " because we need to run make within the allowed
     # container resources.
     # shellcheck disable=SC2016

release/package/ubuntu-18.04/Dockerfile

@@ -10,8 +10,8 @@ RUN apt update && apt install -y \
 # Do NOT be smart here and clean the cache because the container is used in the
 # stateful context.
 
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04.tar.gz -C /opt
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04-amd64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04-amd64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-ubuntu-18.04-amd64.tar.gz -C /opt
 
 ENTRYPOINT ["sleep", "infinity"]

release/package/ubuntu-20.04/Dockerfile

@@ -10,8 +10,8 @@ RUN apt update && apt install -y \
 # Do NOT be smart here and clean the cache because the container is used in the
 # stateful context.
 
-RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04.tar.gz \
-    -O ${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04.tar.gz \
-    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04.tar.gz -C /opt
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04-amd64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04-amd64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-ubuntu-20.04-amd64.tar.gz -C /opt
 
 ENTRYPOINT ["sleep", "infinity"]

release/package/ubuntu-22.04/Dockerfile

@@ -0,0 +1,17 @@
+FROM ubuntu:22.04
+
+ARG TOOLCHAIN_VERSION
+
+# Stops tzdata interactive configuration.
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && apt install -y \
+    ca-certificates wget git
+# Do NOT be smart here and clean the cache because the container is used in the
+# stateful context.
+
+RUN wget -q https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${TOOLCHAIN_VERSION}/${TOOLCHAIN_VERSION}-binaries-ubuntu-22.04-amd64.tar.gz \
+    -O ${TOOLCHAIN_VERSION}-binaries-ubuntu-22.04-amd64.tar.gz \
+    && tar xzvf ${TOOLCHAIN_VERSION}-binaries-ubuntu-22.04-amd64.tar.gz -C /opt
+
+ENTRYPOINT ["sleep", "infinity"]

src/communication/v2/session.hpp

@@ -105,9 +105,16 @@ class WebsocketSession : public std::enable_shared_from_this<WebsocketSession<TS
     boost::asio::socket_base::keep_alive option(true);
 
     // Set a decorator to change the Server of the handshake
-    ws_.set_option(boost::beast::websocket::stream_base::decorator([](boost::beast::websocket::response_type &res) {
+    ws_.set_option(boost::beast::websocket::stream_base::decorator([&req](boost::beast::websocket::response_type &res) {
       res.set(boost::beast::http::field::server, std::string("Memgraph Bolt WS"));
-      res.set(boost::beast::http::field::sec_websocket_protocol, "binary");
+
+      // We need to do this to support WASM clients, which explicitly send this flag
+      // in their upgrade request
+      // Neo4j client breaks when this flag is sent
+      if (const auto secondary_protocol = req.base().find(boost::beast::http::field::sec_websocket_protocol);
+          secondary_protocol != res.base().end() && secondary_protocol->value() == "binary") {
+        res.set(boost::beast::http::field::sec_websocket_protocol, "binary");
+      }
     }));
     ws_.binary(true);
 
@@ -162,7 +169,7 @@ class WebsocketSession : public std::enable_shared_from_this<WebsocketSession<TS
         boost::asio::bind_executor(strand_, std::bind_front(&WebsocketSession::OnRead, shared_from_this())));
   }
 
-  void OnRead(const boost::system::error_code &ec, [[maybe_unused]] const size_t bytes_transferred) {
+  void OnRead(const boost::system::error_code &ec, const size_t bytes_transferred) {
     // This indicates that the WebsocketSession was closed
     if (ec == boost::beast::websocket::error::closed) {
       return;
@@ -246,11 +253,7 @@ class Session final : public std::enable_shared_from_this<Session<TSession, TSes
   Session(Session &&) = delete;
   Session &operator=(const Session &) = delete;
   Session &operator=(Session &&) = delete;
-  ~Session() {
-    if (IsConnected()) {
-      spdlog::error("Session: Destructor called while execution is active");
-    }
-  }
+  ~Session() = default;
 
   bool Start() {
     if (execution_active_) {
@@ -326,7 +329,8 @@ class Session final : public std::enable_shared_from_this<Session<TSession, TSes
       socket.lowest_layer().non_blocking(false);
     });
     timeout_timer_.expires_at(boost::asio::steady_timer::time_point::max());
-    spdlog::info("Accepted a connection from {}:", service_name_, remote_endpoint_.address(), remote_endpoint_.port());
+    spdlog::info("Accepted a connection from {}: {}:{}", service_name_, remote_endpoint_.address(),
+                 remote_endpoint_.port());
   }
 
   void DoRead() {
@@ -400,7 +404,6 @@ class Session final : public std::enable_shared_from_this<Session<TSession, TSes
     if (ec == boost::asio::error::operation_aborted) {
       return;
     }
-    execution_active_ = false;
 
     if (ec == boost::asio::error::eof) {
       spdlog::info("Session closed by peer");

src/memgraph.cpp

@@ -252,6 +252,11 @@ DEFINE_double(query_execution_timeout_sec, 600,
               "Maximum allowed query execution time. Queries exceeding this "
               "limit will be aborted. Value of 0 means no limit.");
 
+// NOLINTNEXTLINE(cppcoreguidelines-avoid-non-const-global-variables)
+DEFINE_uint64(replication_replica_check_frequency_sec, 1,
+              "The time duration between two replica checks/pings. If < 1, replicas will NOT be checked at all. NOTE: "
+              "The MAIN instance allocates a new thread for each REPLICA.");
+
 // NOLINTNEXTLINE (cppcoreguidelines-avoid-non-const-global-variables)
 DEFINE_uint64(
     memory_limit, 0,
@@ -1070,6 +1075,22 @@ int main(int argc, char **argv) {
       if (maybe_exc) {
         spdlog::error(memgraph::utils::MessageWithLink("Unable to load support for embedded Python: {}.", *maybe_exc,
                                                        "https://memgr.ph/python"));
+      } else {
+        // Change how we load dynamic libraries on Python by using RTLD_NOW and
+        // RTLD_DEEPBIND flags. This solves an issue with using the wrong version of
+        // libstd.
+        auto gil = memgraph::py::EnsureGIL();
+        // NOLINTNEXTLINE(hicpp-signed-bitwise)
+        auto *flag = PyLong_FromLong(RTLD_NOW | RTLD_DEEPBIND);
+        auto *setdl = PySys_GetObject("setdlopenflags");
+        MG_ASSERT(setdl);
+        auto *arg = PyTuple_New(1);
+        MG_ASSERT(arg);
+        MG_ASSERT(PyTuple_SetItem(arg, 0, flag) == 0);
+        PyObject_CallObject(setdl, arg);
+        Py_DECREF(flag);
+        Py_DECREF(setdl);
+        Py_DECREF(arg);
       }
     } else {
       spdlog::error(
@@ -1200,6 +1221,7 @@ int main(int argc, char **argv) {
       &db,
       {.query = {.allow_load_csv = FLAGS_allow_load_csv},
        .execution_timeout_sec = FLAGS_query_execution_timeout_sec,
+       .replication_replica_check_frequency = std::chrono::seconds(FLAGS_replication_replica_check_frequency_sec),
        .default_kafka_bootstrap_servers = FLAGS_kafka_bootstrap_servers,
        .default_pulsar_service_url = FLAGS_pulsar_service_url,
        .stream_transaction_conflict_retries = FLAGS_stream_transaction_conflict_retries,

src/memory/CMakeLists.txt

@@ -9,4 +9,5 @@ target_link_libraries(mg-memory mg-utils fmt)
 
 if (ENABLE_JEMALLOC)
   target_link_libraries(mg-memory Jemalloc::Jemalloc)
+  target_compile_definitions(mg-memory PRIVATE USE_JEMALLOC=1)
 endif()

src/query/config.hpp

@@ -21,6 +21,8 @@ struct InterpreterConfig {
 
   // The default execution timeout is 10 minutes.
   double execution_timeout_sec{600.0};
+  // The same as \ref memgraph::storage::replication::ReplicationClientConfig
+  std::chrono::seconds replication_replica_check_frequency{1};
 
   std::string default_kafka_bootstrap_servers;
   std::string default_pulsar_service_url;

src/query/interpreter.cpp

@@ -160,7 +160,8 @@ class ReplQueryHandler final : public query::ReplicationQueryHandler {
 
   /// @throw QueryRuntimeException if an error ocurred.
   void RegisterReplica(const std::string &name, const std::string &socket_address,
-                       const ReplicationQuery::SyncMode sync_mode, const std::optional<double> timeout) override {
+                       const ReplicationQuery::SyncMode sync_mode, const std::optional<double> timeout,
+                       const std::chrono::seconds replica_check_frequency) override {
     if (db_->GetReplicationRole() == storage::ReplicationRole::REPLICA) {
       // replica can't register another replica
       throw QueryRuntimeException("Replica can't register another replica!");
@@ -182,8 +183,9 @@ class ReplQueryHandler final : public query::ReplicationQueryHandler {
         io::network::Endpoint::ParseSocketOrIpAddress(socket_address, query::kDefaultReplicationPort);
     if (maybe_ip_and_port) {
       auto [ip, port] = *maybe_ip_and_port;
-      auto ret =
-          db_->RegisterReplica(name, {std::move(ip), port}, repl_mode, {.timeout = timeout, .ssl = std::nullopt});
+      auto ret = db_->RegisterReplica(
+          name, {std::move(ip), port}, repl_mode,
+          {.timeout = timeout, .replica_check_frequency = replica_check_frequency, .ssl = std::nullopt});
       if (ret.HasError()) {
         throw QueryRuntimeException(fmt::format("Couldn't register replica '{}'!", name));
       }
@@ -448,7 +450,7 @@ Callback HandleReplicationQuery(ReplicationQuery *repl_query, const Parameters &
       return callback;
     }
     case ReplicationQuery::Action::SHOW_REPLICATION_ROLE: {
-      callback.header = {"replication mode"};
+      callback.header = {"replication role"};
       callback.fn = [handler = ReplQueryHandler{interpreter_context->db}] {
         auto mode = handler.ShowReplicationRole();
         switch (mode) {
@@ -467,6 +469,7 @@ Callback HandleReplicationQuery(ReplicationQuery *repl_query, const Parameters &
       const auto &sync_mode = repl_query->sync_mode_;
       auto socket_address = repl_query->socket_address_->Accept(evaluator);
       auto timeout = EvaluateOptionalExpression(repl_query->timeout_, &evaluator);
+      const auto replica_check_frequency = interpreter_context->config.replication_replica_check_frequency;
       std::optional<double> maybe_timeout;
       if (timeout.IsDouble()) {
         maybe_timeout = timeout.ValueDouble();
@@ -474,8 +477,9 @@ Callback HandleReplicationQuery(ReplicationQuery *repl_query, const Parameters &
         maybe_timeout = static_cast<double>(timeout.ValueInt());
       }
       callback.fn = [handler = ReplQueryHandler{interpreter_context->db}, name, socket_address, sync_mode,
-                     maybe_timeout]() mutable {
-        handler.RegisterReplica(name, std::string(socket_address.ValueString()), sync_mode, maybe_timeout);
+                     maybe_timeout, replica_check_frequency]() mutable {
+        handler.RegisterReplica(name, std::string(socket_address.ValueString()), sync_mode, maybe_timeout,
+                                replica_check_frequency);
         return std::vector<std::vector<TypedValue>>();
       };
       notifications->emplace_back(SeverityLevel::INFO, NotificationCode::REGISTER_REPLICA,
@@ -512,7 +516,6 @@ Callback HandleReplicationQuery(ReplicationQuery *repl_query, const Parameters &
               typed_replica.emplace_back(TypedValue("async"));
               break;
           }
-          typed_replica.emplace_back(TypedValue(static_cast<int64_t>(replica.sync_mode)));
           if (replica.timeout) {
             typed_replica.emplace_back(TypedValue(*replica.timeout));
           } else {
@@ -726,7 +729,7 @@ Callback HandleStreamQuery(StreamQuery *stream_query, const Parameters &paramete
       return callback;
     }
     case StreamQuery::Action::CHECK_STREAM: {
-      callback.header = {"query", "parameters"};
+      callback.header = {"queries", "raw messages"};
       callback.fn = [interpreter_context, stream_name = stream_query->stream_name_,
                      timeout = GetOptionalValue<std::chrono::milliseconds>(stream_query->timeout_, evaluator),
                      batch_limit = GetOptionalValue<int64_t>(stream_query->batch_limit_, evaluator)]() mutable {

src/query/interpreter.hpp

@@ -137,7 +137,8 @@ class ReplicationQueryHandler {
 
   /// @throw QueryRuntimeException if an error ocurred.
   virtual void RegisterReplica(const std::string &name, const std::string &socket_address,
-                               const ReplicationQuery::SyncMode sync_mode, const std::optional<double> timeout) = 0;
+                               const ReplicationQuery::SyncMode sync_mode, const std::optional<double> timeout,
+                               const std::chrono::seconds replica_check_frequency) = 0;
 
   /// @throw QueryRuntimeException if an error ocurred.
   virtual void DropReplica(const std::string &replica_name) = 0;

src/query/procedure/mg_procedure_helpers.cpp

@@ -24,7 +24,7 @@ MgpUniquePtr<mgp_value> GetStringValueOrSetError(const char *string, mgp_memory
 }
 
 bool InsertResultOrSetError(mgp_result *result, mgp_result_record *record, const char *result_name, mgp_value *value) {
-  if (const auto err = mgp_result_record_insert(record, result_name, value); err != MGP_ERROR_NO_ERROR) {
+  if (const auto err = mgp_result_record_insert(record, result_name, value); err != mgp_error::MGP_ERROR_NO_ERROR) {
     const auto error_msg = fmt::format("Unable to set the result for {}, error = {}", result_name, err);
     static_cast<void>(mgp_result_set_error_msg(result, error_msg.c_str()));
     return false;

src/query/procedure/mg_procedure_helpers.hpp

@@ -25,7 +25,7 @@ TResult Call(TFunc func, TArgs... args) {
   static_assert(std::is_trivially_copyable_v<TFunc>);
   static_assert((std::is_trivially_copyable_v<std::remove_reference_t<TArgs>> && ...));
   TResult result{};
-  MG_ASSERT(func(args..., &result) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(func(args..., &result) == mgp_error::MGP_ERROR_NO_ERROR);
   return result;
 }
 
@@ -50,10 +50,10 @@ mgp_error CreateMgpObject(MgpUniquePtr<TObj> &obj, TFunc func, TArgs &&...args)
 
 template <typename Fun>
 [[nodiscard]] bool TryOrSetError(Fun &&func, mgp_result *result) {
-  if (const auto err = func(); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+  if (const auto err = func(); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
     static_cast<void>(mgp_result_set_error_msg(result, "Not enough memory!"));
     return false;
-  } else if (err != MGP_ERROR_NO_ERROR) {
+  } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
     const auto error_msg = fmt::format("Unexpected error ({})!", err);
     static_cast<void>(mgp_result_set_error_msg(result, error_msg.c_str()));
     return false;

src/query/procedure/mg_procedure_impl.cpp

@@ -143,48 +143,48 @@ template <typename TFunc, typename... Args>
     WrapExceptionsHelper(std::forward<TFunc>(func), std::forward<Args>(args)...);
   } catch (const DeletedObjectException &neoe) {
     spdlog::error("Deleted object error during mg API call: {}", neoe.what());
-    return MGP_ERROR_DELETED_OBJECT;
+    return mgp_error::MGP_ERROR_DELETED_OBJECT;
   } catch (const KeyAlreadyExistsException &kaee) {
     spdlog::error("Key already exists error during mg API call: {}", kaee.what());
-    return MGP_ERROR_KEY_ALREADY_EXISTS;
+    return mgp_error::MGP_ERROR_KEY_ALREADY_EXISTS;
   } catch (const InsufficientBufferException &ibe) {
     spdlog::error("Insufficient buffer error during mg API call: {}", ibe.what());
-    return MGP_ERROR_INSUFFICIENT_BUFFER;
+    return mgp_error::MGP_ERROR_INSUFFICIENT_BUFFER;
   } catch (const ImmutableObjectException &ioe) {
     spdlog::error("Immutable object error during mg API call: {}", ioe.what());
-    return MGP_ERROR_IMMUTABLE_OBJECT;
+    return mgp_error::MGP_ERROR_IMMUTABLE_OBJECT;
   } catch (const ValueConversionException &vce) {
     spdlog::error("Value converion error during mg API call: {}", vce.what());
-    return MGP_ERROR_VALUE_CONVERSION;
+    return mgp_error::MGP_ERROR_VALUE_CONVERSION;
   } catch (const SerializationException &se) {
     spdlog::error("Serialization error during mg API call: {}", se.what());
-    return MGP_ERROR_SERIALIZATION_ERROR;
+    return mgp_error::MGP_ERROR_SERIALIZATION_ERROR;
   } catch (const std::bad_alloc &bae) {
     spdlog::error("Memory allocation error during mg API call: {}", bae.what());
-    return MGP_ERROR_UNABLE_TO_ALLOCATE;
+    return mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE;
   } catch (const memgraph::utils::OutOfMemoryException &oome) {
     spdlog::error("Memory limit exceeded during mg API call: {}", oome.what());
-    return MGP_ERROR_UNABLE_TO_ALLOCATE;
+    return mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE;
   } catch (const std::out_of_range &oore) {
     spdlog::error("Out of range error during mg API call: {}", oore.what());
-    return MGP_ERROR_OUT_OF_RANGE;
+    return mgp_error::MGP_ERROR_OUT_OF_RANGE;
   } catch (const std::invalid_argument &iae) {
     spdlog::error("Invalid argument error during mg API call: {}", iae.what());
-    return MGP_ERROR_INVALID_ARGUMENT;
+    return mgp_error::MGP_ERROR_INVALID_ARGUMENT;
   } catch (const std::logic_error &lee) {
     spdlog::error("Logic error during mg API call: {}", lee.what());
-    return MGP_ERROR_LOGIC_ERROR;
+    return mgp_error::MGP_ERROR_LOGIC_ERROR;
   } catch (const std::exception &e) {
     spdlog::error("Unexpected error during mg API call: {}", e.what());
-    return MGP_ERROR_UNKNOWN_ERROR;
+    return mgp_error::MGP_ERROR_UNKNOWN_ERROR;
   } catch (const memgraph::utils::temporal::InvalidArgumentException &e) {
     spdlog::error("Invalid argument was sent to an mg API call for temporal types: {}", e.what());
-    return MGP_ERROR_INVALID_ARGUMENT;
+    return mgp_error::MGP_ERROR_INVALID_ARGUMENT;
   } catch (...) {
     spdlog::error("Unexpected error during mg API call");
-    return MGP_ERROR_UNKNOWN_ERROR;
+    return mgp_error::MGP_ERROR_UNKNOWN_ERROR;
   }
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 // Graph mutations
@@ -846,7 +846,7 @@ mgp_value_type MgpValueGetType(const mgp_value &val) noexcept { return val.type;
 mgp_error mgp_value_get_type(mgp_value *val, mgp_value_type *result) {
   static_assert(noexcept(MgpValueGetType(*val)));
   *result = MgpValueGetType(*val);
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
@@ -854,7 +854,7 @@ mgp_error mgp_value_get_type(mgp_value *val, mgp_value_type *result) {
   mgp_error mgp_value_is_##type_lowercase(mgp_value *val, int *result) { \
     static_assert(noexcept(MgpValueGetType(*val)));                      \
     *result = MgpValueGetType(*val) == MGP_VALUE_TYPE_##type_uppercase;  \
-    return MGP_ERROR_NO_ERROR;                                           \
+    return mgp_error::MGP_ERROR_NO_ERROR;                                \
   }
 
 DEFINE_MGP_VALUE_IS(null, NULL)
@@ -874,27 +874,27 @@ DEFINE_MGP_VALUE_IS(duration, DURATION)
 
 mgp_error mgp_value_get_bool(mgp_value *val, int *result) {
   *result = val->bool_v ? 1 : 0;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 mgp_error mgp_value_get_int(mgp_value *val, int64_t *result) {
   *result = val->int_v;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 mgp_error mgp_value_get_double(mgp_value *val, double *result) {
   *result = val->double_v;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 mgp_error mgp_value_get_string(mgp_value *val, const char **result) {
   static_assert(noexcept(val->string_v.c_str()));
   *result = val->string_v.c_str();
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
 #define DEFINE_MGP_VALUE_GET(type)                                      \
   mgp_error mgp_value_get_##type(mgp_value *val, mgp_##type **result) { \
     *result = val->type##_v;                                            \
-    return MGP_ERROR_NO_ERROR;                                          \
+    return mgp_error::MGP_ERROR_NO_ERROR;                               \
   }
 
 DEFINE_MGP_VALUE_GET(list)
@@ -940,13 +940,13 @@ mgp_error mgp_list_append_extend(mgp_list *list, mgp_value *val) {
 mgp_error mgp_list_size(mgp_list *list, size_t *result) {
   static_assert(noexcept(list->elems.size()));
   *result = list->elems.size();
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_list_capacity(mgp_list *list, size_t *result) {
   static_assert(noexcept(list->elems.capacity()));
   *result = list->elems.capacity();
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_list_at(mgp_list *list, size_t i, mgp_value **result) {
@@ -978,7 +978,7 @@ mgp_error mgp_map_insert(mgp_map *map, const char *key, mgp_value *value) {
 mgp_error mgp_map_size(mgp_map *map, size_t *result) {
   static_assert(noexcept(map->items.size()));
   *result = map->items.size();
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_map_at(mgp_map *map, const char *key, mgp_value **result) {
@@ -1089,7 +1089,7 @@ size_t MgpPathSize(const mgp_path &path) noexcept { return path.edges.size(); }
 
 mgp_error mgp_path_size(mgp_path *path, size_t *result) {
   *result = MgpPathSize(*path);
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_path_vertex_at(mgp_path *path, size_t i, mgp_vertex **result) {
@@ -1690,7 +1690,7 @@ mgp_error mgp_vertex_equal(mgp_vertex *v1, mgp_vertex *v2, int *result) {
   // NOLINTNEXTLINE(clang-diagnostic-unevaluated-expression)
   static_assert(noexcept(*result = *v1 == *v2 ? 1 : 0));
   *result = *v1 == *v2 ? 1 : 0;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_vertex_labels_count(mgp_vertex *v, size_t *result) {
@@ -1950,7 +1950,7 @@ mgp_error mgp_edge_equal(mgp_edge *e1, mgp_edge *e2, int *result) {
   // NOLINTNEXTLINE(clang-diagnostic-unevaluated-expression)
   static_assert(noexcept(*result = *e1 == *e2 ? 1 : 0));
   *result = *e1 == *e2 ? 1 : 0;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_edge_get_type(mgp_edge *e, mgp_edge_type *result) {
@@ -1967,12 +1967,12 @@ mgp_error mgp_edge_get_type(mgp_edge *e, mgp_edge_type *result) {
 
 mgp_error mgp_edge_get_from(mgp_edge *e, mgp_vertex **result) {
   *result = &e->from;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_edge_get_to(mgp_edge *e, mgp_vertex **result) {
   *result = &e->to;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_edge_get_property(mgp_edge *e, const char *name, mgp_memory *memory, mgp_value **result) {
@@ -2082,7 +2082,7 @@ mgp_error mgp_graph_get_vertex_by_id(mgp_graph *graph, mgp_vertex_id id, mgp_mem
 
 mgp_error mgp_graph_is_mutable(mgp_graph *graph, int *result) {
   *result = MgpGraphIsMutable(*graph) ? 1 : 0;
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 };
 
 mgp_error mgp_graph_create_vertex(struct mgp_graph *graph, mgp_memory *memory, mgp_vertex **result) {
@@ -2507,7 +2507,7 @@ mgp_error mgp_proc_add_result(mgp_proc *proc, const char *name, mgp_type *type)
 
 mgp_error MgpTransAddFixedResult(mgp_trans *trans) noexcept {
   if (const auto err = AddResultToProp(trans, "query", Call<mgp_type *>(mgp_type_string), false);
-      err != MGP_ERROR_NO_ERROR) {
+      err != mgp_error::MGP_ERROR_NO_ERROR) {
     return err;
   }
   return AddResultToProp(trans, "parameters", Call<mgp_type *>(mgp_type_nullable, Call<mgp_type *>(mgp_type_map)),
@@ -2754,7 +2754,7 @@ mgp_error mgp_message_offset(struct mgp_message *message, int64_t *result) {
 mgp_error mgp_messages_size(mgp_messages *messages, size_t *result) {
   static_assert(noexcept(messages->messages.size()));
   *result = messages->messages.size();
-  return MGP_ERROR_NO_ERROR;
+  return mgp_error::MGP_ERROR_NO_ERROR;
 }
 
 mgp_error mgp_messages_at(mgp_messages *messages, size_t index, mgp_message **result) {

src/query/procedure/module.cpp

@@ -121,18 +121,18 @@ void RegisterMgLoad(ModuleRegistry *module_registry, utils::RWLock *lock, Builti
     bool succ = false;
     WithUpgradedLock(lock, [&]() {
       const char *arg_as_string{nullptr};
-      if (const auto err = mgp_value_get_string(arg, &arg_as_string); err != MGP_ERROR_NO_ERROR) {
+      if (const auto err = mgp_value_get_string(arg, &arg_as_string); err != mgp_error::MGP_ERROR_NO_ERROR) {
         succ = false;
       } else {
         succ = module_registry->LoadOrReloadModuleFromName(arg_as_string);
       }
     });
     if (!succ) {
-      MG_ASSERT(mgp_result_set_error_msg(result, "Failed to (re)load the module.") == MGP_ERROR_NO_ERROR);
+      MG_ASSERT(mgp_result_set_error_msg(result, "Failed to (re)load the module.") == mgp_error::MGP_ERROR_NO_ERROR);
     }
   };
   mgp_proc load("load", load_cb, utils::NewDeleteResource());
-  MG_ASSERT(mgp_proc_add_arg(&load, "module_name", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&load, "module_name", Call<mgp_type *>(mgp_type_string)) == mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("load", std::move(load));
 }
 
@@ -235,11 +235,16 @@ void RegisterMgProcedures(
     }
   };
   mgp_proc procedures("procedures", procedures_cb, utils::NewDeleteResource());
-  MG_ASSERT(mgp_proc_add_result(&procedures, "name", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "signature", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "is_write", Call<mgp_type *>(mgp_type_bool)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "is_editable", Call<mgp_type *>(mgp_type_bool)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "name", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "signature", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "is_write", Call<mgp_type *>(mgp_type_bool)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "is_editable", Call<mgp_type *>(mgp_type_bool)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("procedures", std::move(procedures));
 }
 
@@ -298,9 +303,12 @@ void RegisterMgTransformations(const std::map<std::string, std::unique_ptr<Modul
     }
   };
   mgp_proc procedures("transformations", transformations_cb, utils::NewDeleteResource());
-  MG_ASSERT(mgp_proc_add_result(&procedures, "name", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&procedures, "is_editable", Call<mgp_type *>(mgp_type_bool)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "name", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&procedures, "is_editable", Call<mgp_type *>(mgp_type_bool)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("transformations", std::move(procedures));
 }
 
@@ -374,10 +382,14 @@ void RegisterMgFunctions(
     }
   };
   mgp_proc functions("functions", functions_cb, utils::NewDeleteResource());
-  MG_ASSERT(mgp_proc_add_result(&functions, "name", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&functions, "signature", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&functions, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&functions, "is_editable", Call<mgp_type *>(mgp_type_bool)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&functions, "name", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&functions, "signature", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&functions, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&functions, "is_editable", Call<mgp_type *>(mgp_type_bool)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("functions", std::move(functions));
 }
 namespace {
@@ -469,9 +481,10 @@ void RegisterMgGetModuleFiles(ModuleRegistry *module_registry, BuiltinModule *mo
 
   mgp_proc get_module_files("get_module_files", get_module_files_cb, utils::NewDeleteResource(),
                             {.required_privilege = AuthQuery::Privilege::MODULE_READ});
-  MG_ASSERT(mgp_proc_add_result(&get_module_files, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&get_module_files, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   MG_ASSERT(mgp_proc_add_result(&get_module_files, "is_editable", Call<mgp_type *>(mgp_type_bool)) ==
-            MGP_ERROR_NO_ERROR);
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("get_module_files", std::move(get_module_files));
 }
 
@@ -530,8 +543,10 @@ void RegisterMgGetModuleFile(ModuleRegistry *module_registry, BuiltinModule *mod
   };
   mgp_proc get_module_file("get_module_file", std::move(get_module_file_cb), utils::NewDeleteResource(),
                            {.required_privilege = AuthQuery::Privilege::MODULE_READ});
-  MG_ASSERT(mgp_proc_add_arg(&get_module_file, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&get_module_file, "content", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&get_module_file, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&get_module_file, "content", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("get_module_file", std::move(get_module_file));
 }
 
@@ -609,9 +624,12 @@ void RegisterMgCreateModuleFile(ModuleRegistry *module_registry, utils::RWLock *
   };
   mgp_proc create_module_file("create_module_file", std::move(create_module_file_cb), utils::NewDeleteResource(),
                               {.required_privilege = AuthQuery::Privilege::MODULE_WRITE});
-  MG_ASSERT(mgp_proc_add_arg(&create_module_file, "filename", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_arg(&create_module_file, "content", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_result(&create_module_file, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&create_module_file, "filename", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&create_module_file, "content", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_result(&create_module_file, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("create_module_file", std::move(create_module_file));
 }
 
@@ -664,8 +682,10 @@ void RegisterMgUpdateModuleFile(ModuleRegistry *module_registry, utils::RWLock *
   };
   mgp_proc update_module_file("update_module_file", std::move(update_module_file_cb), utils::NewDeleteResource(),
                               {.required_privilege = AuthQuery::Privilege::MODULE_WRITE});
-  MG_ASSERT(mgp_proc_add_arg(&update_module_file, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
-  MG_ASSERT(mgp_proc_add_arg(&update_module_file, "content", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&update_module_file, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&update_module_file, "content", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("update_module_file", std::move(update_module_file));
 }
 
@@ -721,7 +741,8 @@ void RegisterMgDeleteModuleFile(ModuleRegistry *module_registry, utils::RWLock *
   };
   mgp_proc delete_module_file("delete_module_file", std::move(delete_module_file_cb), utils::NewDeleteResource(),
                               {.required_privilege = AuthQuery::Privilege::MODULE_WRITE});
-  MG_ASSERT(mgp_proc_add_arg(&delete_module_file, "path", Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+  MG_ASSERT(mgp_proc_add_arg(&delete_module_file, "path", Call<mgp_type *>(mgp_type_string)) ==
+            mgp_error::MGP_ERROR_NO_ERROR);
   module->AddProcedure("delete_module_file", std::move(delete_module_file));
 }
 
@@ -801,7 +822,8 @@ bool SharedLibraryModule::Load(const std::filesystem::path &file_path) {
   spdlog::info("Loading module {}...", file_path);
   file_path_ = file_path;
   dlerror();  // Clear any existing error.
-  handle_ = dlopen(file_path.c_str(), RTLD_NOW | RTLD_LOCAL);
+  // NOLINTNEXTLINE(hicpp-signed-bitwise)
+  handle_ = dlopen(file_path.c_str(), RTLD_NOW | RTLD_LOCAL | RTLD_DEEPBIND);
   if (!handle_) {
     spdlog::error(
         utils::MessageWithLink("Unable to load module {}; {}.", file_path, dlerror(), "https://memgr.ph/modules"));
@@ -832,7 +854,7 @@ bool SharedLibraryModule::Load(const std::filesystem::path &file_path) {
       return with_error(error);
     }
     for (auto &trans : module_def->transformations) {
-      const bool success = MGP_ERROR_NO_ERROR == MgpTransAddFixedResult(&trans.second);
+      const bool success = mgp_error::MGP_ERROR_NO_ERROR == MgpTransAddFixedResult(&trans.second);
       if (!success) {
         const auto error =
             fmt::format("Unable to add result to transformation in module {}; add result failed", file_path);
@@ -941,7 +963,7 @@ bool PythonModule::Load(const std::filesystem::path &file_path) {
   auto module_cb = [&](auto *module_def, auto * /*memory*/) {
     auto result = ImportPyModule(file_path.stem().c_str(), module_def);
     for (auto &trans : module_def->transformations) {
-      succ = MgpTransAddFixedResult(&trans.second) == MGP_ERROR_NO_ERROR;
+      succ = MgpTransAddFixedResult(&trans.second) == mgp_error::MGP_ERROR_NO_ERROR;
       if (!succ) {
         return result;
       }

src/query/procedure/module.hpp

@@ -13,6 +13,7 @@
 /// API for loading and registering modules providing custom oC procedures
 #pragma once
 
+#include <dlfcn.h>
 #include <filesystem>
 #include <functional>
 #include <optional>
@@ -128,6 +129,40 @@ class ModuleRegistry final {
   const std::filesystem::path &InternalModuleDir() const noexcept;
 
  private:
+  class SharedLibraryHandle {
+   public:
+    SharedLibraryHandle(const std::string &shared_library, int mode) : handle_{dlopen(shared_library.c_str(), mode)} {}
+    SharedLibraryHandle(const SharedLibraryHandle &) = delete;
+    SharedLibraryHandle(SharedLibraryHandle &&) = delete;
+    SharedLibraryHandle operator=(const SharedLibraryHandle &) = delete;
+    SharedLibraryHandle operator=(SharedLibraryHandle &&) = delete;
+
+    ~SharedLibraryHandle() {
+      if (handle_) {
+        dlclose(handle_);
+      }
+    }
+
+   private:
+    void *handle_;
+  };
+
+#if __has_feature(address_sanitizer)
+  // This is why we need RTLD_NODELETE and we must not use RTLD_DEEPBIND with
+  // ASAN: https://github.com/google/sanitizers/issues/89
+  SharedLibraryHandle libstd_handle{"libstdc++.so.6", RTLD_NOW | RTLD_LOCAL | RTLD_NODELETE};
+#else
+  // The reason behind opening share library during runtime is to avoid issues
+  // with loading symbols from stdlib. We have encounter issues with locale
+  // that cause std::cout not being printed and issues when python libraries
+  // would call stdlib (e.g. pytorch).
+  // The way that those issues were solved was
+  // by using RTLD_DEEPBIND. RTLD_DEEPBIND ensures that the lookup for the
+  // mentioned library will be first performed in the already existing binded
+  // libraries and then the global namespace.
+  // RTLD_DEEPBIND => https://linux.die.net/man/3/dlopen
+  SharedLibraryHandle libstd_handle{"libstdc++.so.6", RTLD_NOW | RTLD_LOCAL | RTLD_DEEPBIND};
+#endif
   std::vector<std::filesystem::path> modules_dirs_;
   std::filesystem::path internal_module_dir_;
 };

src/query/procedure/py_module.cpp

@@ -55,49 +55,49 @@ PyObject *gMgpSerializationError{nullptr};       // NOLINT(cppcoreguidelines-avo
 // Returns true if an exception is raised
 bool RaiseExceptionFromErrorCode(const mgp_error error) {
   switch (error) {
-    case MGP_ERROR_NO_ERROR:
+    case mgp_error::MGP_ERROR_NO_ERROR:
       return false;
-    case MGP_ERROR_UNKNOWN_ERROR: {
+    case mgp_error::MGP_ERROR_UNKNOWN_ERROR: {
       PyErr_SetString(gMgpUnknownError, "Unknown error happened.");
       return true;
     }
-    case MGP_ERROR_UNABLE_TO_ALLOCATE: {
+    case mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE: {
       PyErr_SetString(gMgpUnableToAllocateError, "Unable to allocate memory.");
       return true;
     }
-    case MGP_ERROR_INSUFFICIENT_BUFFER: {
+    case mgp_error::MGP_ERROR_INSUFFICIENT_BUFFER: {
       PyErr_SetString(gMgpInsufficientBufferError, "Insufficient buffer.");
       return true;
     }
-    case MGP_ERROR_OUT_OF_RANGE: {
+    case mgp_error::MGP_ERROR_OUT_OF_RANGE: {
       PyErr_SetString(gMgpOutOfRangeError, "Out of range.");
       return true;
     }
-    case MGP_ERROR_LOGIC_ERROR: {
+    case mgp_error::MGP_ERROR_LOGIC_ERROR: {
       PyErr_SetString(gMgpLogicErrorError, "Logic error.");
       return true;
     }
-    case MGP_ERROR_DELETED_OBJECT: {
+    case mgp_error::MGP_ERROR_DELETED_OBJECT: {
       PyErr_SetString(gMgpDeletedObjectError, "Accessing deleted object.");
       return true;
     }
-    case MGP_ERROR_INVALID_ARGUMENT: {
+    case mgp_error::MGP_ERROR_INVALID_ARGUMENT: {
       PyErr_SetString(gMgpInvalidArgumentError, "Invalid argument.");
       return true;
     }
-    case MGP_ERROR_KEY_ALREADY_EXISTS: {
+    case mgp_error::MGP_ERROR_KEY_ALREADY_EXISTS: {
       PyErr_SetString(gMgpKeyAlreadyExistsError, "Key already exists.");
       return true;
     }
-    case MGP_ERROR_IMMUTABLE_OBJECT: {
+    case mgp_error::MGP_ERROR_IMMUTABLE_OBJECT: {
       PyErr_SetString(gMgpImmutableObjectError, "Cannot modify immutable object.");
       return true;
     }
-    case MGP_ERROR_VALUE_CONVERSION: {
+    case mgp_error::MGP_ERROR_VALUE_CONVERSION: {
       PyErr_SetString(gMgpValueConversionError, "Value conversion failed.");
       return true;
     }
-    case MGP_ERROR_SERIALIZATION_ERROR: {
+    case mgp_error::MGP_ERROR_SERIALIZATION_ERROR: {
       PyErr_SetString(gMgpSerializationError, "Operation cannot be serialized.");
       return true;
     }
@@ -902,7 +902,7 @@ std::optional<py::ExceptionInfo> AddRecordFromPython(mgp_result *result, py::Obj
     if (field_val == nullptr) {
       return py::FetchError();
     }
-    if (mgp_result_record_insert(record, field_name, field_val) != MGP_ERROR_NO_ERROR) {
+    if (mgp_result_record_insert(record, field_name, field_val) != mgp_error::MGP_ERROR_NO_ERROR) {
       std::stringstream ss;
       ss << "Unable to insert field '" << py::Object::FromBorrow(key) << "' with value: '"
          << py::Object::FromBorrow(val) << "'; did you set the correct field type?";
@@ -2281,9 +2281,10 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
   auto py_seq_to_list = [memory](PyObject *seq, Py_ssize_t len, const auto &py_seq_get_item) {
     static_assert(std::numeric_limits<Py_ssize_t>::max() <= std::numeric_limits<size_t>::max());
     MgpUniquePtr<mgp_list> list{nullptr, &mgp_list_destroy};
-    if (const auto err = CreateMgpObject(list, mgp_list_make_empty, len, memory); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = CreateMgpObject(list, mgp_list_make_empty, len, memory);
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during making mgp_list"};
     }
     for (Py_ssize_t i = 0; i < len; ++i) {
@@ -2292,17 +2293,17 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
       v = PyObjectToMgpValue(e, memory);
       const auto err = mgp_list_append(list.get(), v);
       mgp_value_destroy(v);
-      if (err != MGP_ERROR_NO_ERROR) {
-        if (err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+      if (err != mgp_error::MGP_ERROR_NO_ERROR) {
+        if (err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
           throw std::bad_alloc{};
         }
         throw std::runtime_error{"Unexpected error during appending to mgp_list"};
       }
     }
     mgp_value *v{nullptr};
-    if (const auto err = mgp_value_make_list(list.get(), &v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_list(list.get(), &v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during making mgp_value"};
     }
     static_cast<void>(list.release());
@@ -2334,7 +2335,7 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
   };
 
   mgp_value *mgp_v{nullptr};
-  mgp_error last_error{MGP_ERROR_NO_ERROR};
+  mgp_error last_error{mgp_error::MGP_ERROR_NO_ERROR};
 
   if (o == Py_None) {
     last_error = mgp_value_make_null(memory, &mgp_v);
@@ -2360,10 +2361,10 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     MgpUniquePtr<mgp_map> map{nullptr, mgp_map_destroy};
     const auto map_err = CreateMgpObject(map, mgp_map_make_empty, memory);
 
-    if (map_err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (map_err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
     }
-    if (map_err != MGP_ERROR_NO_ERROR) {
+    if (map_err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during creating mgp_map"};
     }
 
@@ -2384,16 +2385,16 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
 
       MgpUniquePtr<mgp_value> v{PyObjectToMgpValue(value, memory), mgp_value_destroy};
 
-      if (const auto err = mgp_map_insert(map.get(), k, v.get()); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+      if (const auto err = mgp_map_insert(map.get(), k, v.get()); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
         throw std::bad_alloc{};
-      } else if (err != MGP_ERROR_NO_ERROR) {
+      } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
         throw std::runtime_error{"Unexpected error during inserting an item to mgp_map"};
       }
     }
 
-    if (const auto err = mgp_value_make_map(map.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_map(map.get(), &mgp_v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during creating mgp_value"};
     }
     static_cast<void>(map.release());
@@ -2402,14 +2403,14 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     // Copy the edge and pass the ownership to the created mgp_value.
 
     if (const auto err = CreateMgpObject(e, mgp_edge_copy, reinterpret_cast<PyEdge *>(o)->edge, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_edge"};
     }
-    if (const auto err = mgp_value_make_edge(e.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_edge(e.get(), &mgp_v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_edge"};
     }
     static_cast<void>(e.release());
@@ -2418,14 +2419,14 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     // Copy the edge and pass the ownership to the created mgp_value.
 
     if (const auto err = CreateMgpObject(p, mgp_path_copy, reinterpret_cast<PyPath *>(o)->path, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_path"};
     }
-    if (const auto err = mgp_value_make_path(p.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_path(p.get(), &mgp_v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_path"};
     }
     static_cast<void>(p.release());
@@ -2434,14 +2435,14 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     // Copy the edge and pass the ownership to the created mgp_value.
 
     if (const auto err = CreateMgpObject(v, mgp_vertex_copy, reinterpret_cast<PyVertex *>(o)->vertex, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_vertex"};
     }
-    if (const auto err = mgp_value_make_vertex(v.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_vertex(v.get(), &mgp_v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error during copying mgp_vertex"};
     }
     static_cast<void>(v.release());
@@ -2474,14 +2475,14 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     MgpUniquePtr<mgp_date> date{nullptr, mgp_date_destroy};
 
     if (const auto err = CreateMgpObject(date, mgp_date_from_parameters, &parameters, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_date"};
     }
-    if (const auto err = mgp_value_make_date(date.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_date(date.get(), &mgp_v); err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_value"};
     }
     static_cast<void>(date.release());
@@ -2499,14 +2500,15 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     MgpUniquePtr<mgp_local_time> local_time{nullptr, mgp_local_time_destroy};
 
     if (const auto err = CreateMgpObject(local_time, mgp_local_time_from_parameters, &parameters, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_local_time"};
     }
-    if (const auto err = mgp_value_make_local_time(local_time.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_local_time(local_time.get(), &mgp_v);
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_value"};
     }
     static_cast<void>(local_time.release());
@@ -2531,15 +2533,15 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     MgpUniquePtr<mgp_local_date_time> local_date_time{nullptr, mgp_local_date_time_destroy};
 
     if (const auto err = CreateMgpObject(local_date_time, mgp_local_date_time_from_parameters, &parameters, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_local_date_time"};
     }
     if (const auto err = mgp_value_make_local_date_time(local_date_time.get(), &mgp_v);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_value"};
     }
     static_cast<void>(local_date_time.release());
@@ -2558,14 +2560,15 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     MgpUniquePtr<mgp_duration> duration{nullptr, mgp_duration_destroy};
 
     if (const auto err = CreateMgpObject(duration, mgp_duration_from_microseconds, microseconds, memory);
-        err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_duration"};
     }
-    if (const auto err = mgp_value_make_duration(duration.get(), &mgp_v); err == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+    if (const auto err = mgp_value_make_duration(duration.get(), &mgp_v);
+        err == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
       throw std::bad_alloc{};
-    } else if (err != MGP_ERROR_NO_ERROR) {
+    } else if (err != mgp_error::MGP_ERROR_NO_ERROR) {
       throw std::runtime_error{"Unexpected error while creating mgp_value"};
     }
     static_cast<void>(duration.release());
@@ -2573,10 +2576,10 @@ mgp_value *PyObjectToMgpValue(PyObject *o, mgp_memory *memory) {
     throw std::invalid_argument("Unsupported PyObject conversion");
   }
 
-  if (last_error == MGP_ERROR_UNABLE_TO_ALLOCATE) {
+  if (last_error == mgp_error::MGP_ERROR_UNABLE_TO_ALLOCATE) {
     throw std::bad_alloc{};
   }
-  if (last_error != MGP_ERROR_NO_ERROR) {
+  if (last_error != mgp_error::MGP_ERROR_NO_ERROR) {
     throw std::runtime_error{"Unexpected error while creating mgp_value"};
   }
 

src/query/stream/streams.cpp

@@ -43,6 +43,7 @@ extern const Event MessagesConsumed;
 namespace memgraph::query::stream {
 namespace {
 inline constexpr auto kExpectedTransformationResultSize = 2;
+inline constexpr auto kCheckStreamResultSize = 2;
 const utils::pmr::string query_param_name{"query", utils::NewDeleteResource()};
 const utils::pmr::string params_param_name{"parameters", utils::NewDeleteResource()};
 
@@ -181,25 +182,27 @@ void Streams::RegisterKafkaProcedures() {
       const auto offset = procedure::Call<int64_t>(mgp_value_get_int, arg_offset);
       auto lock_ptr = streams_.Lock();
       auto it = GetStream(*lock_ptr, std::string(stream_name));
-      std::visit(utils::Overloaded{
-                     [&](StreamData<KafkaStream> &kafka_stream) {
-                       auto stream_source_ptr = kafka_stream.stream_source->Lock();
-                       const auto error = stream_source_ptr->SetStreamOffset(offset);
-                       if (error.HasError()) {
-                         MG_ASSERT(mgp_result_set_error_msg(result, error.GetError().c_str()) == MGP_ERROR_NO_ERROR,
-                                   "Unable to set procedure error message of procedure: {}", proc_name);
-                       }
-                     },
-                     [](auto && /*other*/) {
-                       throw QueryRuntimeException("'{}' can be only used for Kafka stream sources", proc_name);
-                     }},
+      std::visit(utils::Overloaded{[&](StreamData<KafkaStream> &kafka_stream) {
+                                     auto stream_source_ptr = kafka_stream.stream_source->Lock();
+                                     const auto error = stream_source_ptr->SetStreamOffset(offset);
+                                     if (error.HasError()) {
+                                       MG_ASSERT(mgp_result_set_error_msg(result, error.GetError().c_str()) ==
+                                                     mgp_error::MGP_ERROR_NO_ERROR,
+                                                 "Unable to set procedure error message of procedure: {}", proc_name);
+                                     }
+                                   },
+                                   [](auto && /*other*/) {
+                                     throw QueryRuntimeException("'{}' can be only used for Kafka stream sources",
+                                                                 proc_name);
+                                   }},
                  it->second);
     };
 
     mgp_proc proc(proc_name, set_stream_offset, utils::NewDeleteResource());
     MG_ASSERT(mgp_proc_add_arg(&proc, "stream_name", procedure::Call<mgp_type *>(mgp_type_string)) ==
-              MGP_ERROR_NO_ERROR);
-    MG_ASSERT(mgp_proc_add_arg(&proc, "offset", procedure::Call<mgp_type *>(mgp_type_int)) == MGP_ERROR_NO_ERROR);
+              mgp_error::MGP_ERROR_NO_ERROR);
+    MG_ASSERT(mgp_proc_add_arg(&proc, "offset", procedure::Call<mgp_type *>(mgp_type_int)) ==
+              mgp_error::MGP_ERROR_NO_ERROR);
 
     procedure::gModuleRegistry.RegisterMgProcedure(proc_name, std::move(proc));
   }
@@ -345,19 +348,19 @@ void Streams::RegisterKafkaProcedures() {
 
     mgp_proc proc(proc_name, get_stream_info, utils::NewDeleteResource());
     MG_ASSERT(mgp_proc_add_arg(&proc, "stream_name", procedure::Call<mgp_type *>(mgp_type_string)) ==
-              MGP_ERROR_NO_ERROR);
+              mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(mgp_proc_add_result(&proc, consumer_group_result_name.data(),
-                                  procedure::Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+                                  procedure::Call<mgp_type *>(mgp_type_string)) == mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(
         mgp_proc_add_result(&proc, topics_result_name.data(),
                             procedure::Call<mgp_type *>(mgp_type_list, procedure::Call<mgp_type *>(mgp_type_string))) ==
-        MGP_ERROR_NO_ERROR);
+        mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(mgp_proc_add_result(&proc, bootstrap_servers_result_name.data(),
-                                  procedure::Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+                                  procedure::Call<mgp_type *>(mgp_type_string)) == mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(mgp_proc_add_result(&proc, configs_result_name.data(), procedure::Call<mgp_type *>(mgp_type_map)) ==
-              MGP_ERROR_NO_ERROR);
+              mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(mgp_proc_add_result(&proc, credentials_result_name.data(), procedure::Call<mgp_type *>(mgp_type_map)) ==
-              MGP_ERROR_NO_ERROR);
+              mgp_error::MGP_ERROR_NO_ERROR);
 
     procedure::gModuleRegistry.RegisterMgProcedure(proc_name, std::move(proc));
   }
@@ -432,14 +435,14 @@ void Streams::RegisterPulsarProcedures() {
 
     mgp_proc proc(proc_name, get_stream_info, utils::NewDeleteResource());
     MG_ASSERT(mgp_proc_add_arg(&proc, "stream_name", procedure::Call<mgp_type *>(mgp_type_string)) ==
-              MGP_ERROR_NO_ERROR);
+              mgp_error::MGP_ERROR_NO_ERROR);
     MG_ASSERT(mgp_proc_add_result(&proc, service_url_result_name.data(),
-                                  procedure::Call<mgp_type *>(mgp_type_string)) == MGP_ERROR_NO_ERROR);
+                                  procedure::Call<mgp_type *>(mgp_type_string)) == mgp_error::MGP_ERROR_NO_ERROR);
 
     MG_ASSERT(
         mgp_proc_add_result(&proc, topics_result_name.data(),
                             procedure::Call<mgp_type *>(mgp_type_list, procedure::Call<mgp_type *>(mgp_type_string))) ==
-        MGP_ERROR_NO_ERROR);
+        mgp_error::MGP_ERROR_NO_ERROR);
 
     procedure::gModuleRegistry.RegisterMgProcedure(proc_name, std::move(proc));
   }
@@ -722,15 +725,27 @@ TransformationResult Streams::Check(const std::string &stream_name, std::optiona
           auto accessor = interpreter_context->db->Access();
           CallCustomTransformation(transformation_name, messages, result, accessor, *memory_resource, stream_name);
 
-          for (auto &row : result.rows) {
-            auto [query, parameters] = ExtractTransformationResult(row.values, transformation_name, stream_name);
-            std::vector<TypedValue> result_row;
-            result_row.reserve(kExpectedTransformationResultSize);
-            result_row.push_back(std::move(query));
-            result_row.push_back(std::move(parameters));
+          auto result_row = std::vector<TypedValue>();
+          result_row.reserve(kCheckStreamResultSize);
 
-            test_result.push_back(std::move(result_row));
-          }
+          auto queries_and_parameters = std::vector<TypedValue>(result.rows.size());
+          std::transform(
+              result.rows.cbegin(), result.rows.cend(), queries_and_parameters.begin(), [&](const auto &row) {
+                auto [query, parameters] = ExtractTransformationResult(row.values, transformation_name, stream_name);
+
+                return std::map<std::string, TypedValue>{{"query", std::move(query)},
+                                                         {"parameters", std::move(parameters)}};
+              });
+          result_row.emplace_back(std::move(queries_and_parameters));
+
+          auto messages_list = std::vector<TypedValue>(messages.size());
+          std::transform(messages.cbegin(), messages.cend(), messages_list.begin(), [](const auto &message) {
+            return std::string_view(message.Payload().data(), message.Payload().size());
+          });
+
+          result_row.emplace_back(std::move(messages_list));
+
+          test_result.emplace_back(std::move(result_row));
         };
 
         locked_stream_source->Check(timeout, batch_limit, consumer_function);

src/storage/v2/replication/config.hpp

@@ -16,6 +16,10 @@
 namespace memgraph::storage::replication {
 struct ReplicationClientConfig {
   std::optional<double> timeout;
+  // The default delay between main checking/pinging replicas is 1s because
+  // that seems like a reasonable timeframe in which main should notice a
+  // replica is down.
+  std::chrono::seconds replica_check_frequency{1};
 
   struct SSL {
     std::string key_file = "";

src/storage/v2/replication/replication_client.cpp

@@ -41,12 +41,49 @@ Storage::ReplicationClient::ReplicationClient(std::string name, Storage *storage
   }
 
   rpc_client_.emplace(endpoint, &*rpc_context_);
-  TryInitializeClient();
+  TryInitializeClientSync();
 
   if (config.timeout && replica_state_ != replication::ReplicaState::INVALID) {
     timeout_.emplace(*config.timeout);
     timeout_dispatcher_.emplace();
   }
+
+  // Help the user to get the most accurate replica state possible.
+  if (config.replica_check_frequency > std::chrono::seconds(0)) {
+    replica_checker_.Run("Replica Checker", config.replica_check_frequency, [&] { FrequentCheck(); });
+  }
+}
+
+void Storage::ReplicationClient::TryInitializeClientAsync() {
+  thread_pool_.AddTask([this] {
+    rpc_client_->Abort();
+    this->TryInitializeClientSync();
+  });
+}
+
+void Storage::ReplicationClient::FrequentCheck() {
+  const auto is_success = std::invoke([this]() {
+    try {
+      auto stream{rpc_client_->Stream<replication::FrequentHeartbeatRpc>()};
+      const auto response = stream.AwaitResponse();
+      return response.success;
+    } catch (const rpc::RpcFailedException &) {
+      return false;
+    }
+  });
+  // States: READY, REPLICATING, RECOVERY, INVALID
+  // If success && ready, replicating, recovery -> stay the same because something good is going on.
+  // If success && INVALID -> [it's possible that replica came back to life] -> TryInitializeClient.
+  // If fail -> [replica is not reachable at all] -> INVALID state.
+  // NOTE: TryInitializeClient might return nothing if there is a branching point.
+  // NOTE: The early return pattern simplified the code, but the behavior should be as explained.
+  if (!is_success) {
+    replica_state_.store(replication::ReplicaState::INVALID);
+    return;
+  }
+  if (replica_state_.load() == replication::ReplicaState::INVALID) {
+    TryInitializeClientAsync();
+  }
 }
 
 /// @throws rpc::RpcFailedException
@@ -100,7 +137,7 @@ void Storage::ReplicationClient::InitializeClient() {
   }
 }
 
-void Storage::ReplicationClient::TryInitializeClient() {
+void Storage::ReplicationClient::TryInitializeClientSync() {
   try {
     InitializeClient();
   } catch (const rpc::RpcFailedException &) {
@@ -113,10 +150,7 @@ void Storage::ReplicationClient::TryInitializeClient() {
 
 void Storage::ReplicationClient::HandleRpcFailure() {
   spdlog::error(utils::MessageWithLink("Couldn't replicate data to {}.", name_, "https://memgr.ph/replication"));
-  thread_pool_.AddTask([this] {
-    rpc_client_->Abort();
-    this->TryInitializeClient();
-  });
+  TryInitializeClientAsync();
 }
 
 replication::SnapshotRes Storage::ReplicationClient::TransferSnapshot(const std::filesystem::path &path) {

src/storage/v2/replication/replication_client.hpp

@@ -142,16 +142,14 @@ class Storage::ReplicationClient {
 
   std::vector<RecoveryStep> GetRecoverySteps(uint64_t replica_commit, utils::FileRetainer::FileLocker *file_locker);
 
+  void FrequentCheck();
   void InitializeClient();
-
-  void TryInitializeClient();
-
+  void TryInitializeClientSync();
+  void TryInitializeClientAsync();
   void HandleRpcFailure();
 
   std::string name_;
-
   Storage *storage_;
-
   std::optional<communication::ClientContext> rpc_context_;
   std::optional<rpc::Client> rpc_client_;
 
@@ -198,6 +196,8 @@ class Storage::ReplicationClient {
   //    to ignore concurrency problems inside the client.
   utils::ThreadPool thread_pool_{1};
   std::atomic<replication::ReplicaState> replica_state_{replication::ReplicaState::INVALID};
+
+  utils::Scheduler replica_checker_;
 };
 
 }  // namespace memgraph::storage

src/storage/v2/replication/replication_server.cpp

@@ -60,6 +60,10 @@ Storage::ReplicationServer::ReplicationServer(Storage *storage, io::network::End
     spdlog::debug("Received HeartbeatRpc");
     this->HeartbeatHandler(req_reader, res_builder);
   });
+  rpc_server_->Register<replication::FrequentHeartbeatRpc>([](auto *req_reader, auto *res_builder) {
+    spdlog::debug("Received FrequentHeartbeatRpc");
+    FrequentHeartbeatHandler(req_reader, res_builder);
+  });
   rpc_server_->Register<replication::AppendDeltasRpc>([this](auto *req_reader, auto *res_builder) {
     spdlog::debug("Received AppendDeltasRpc");
     this->AppendDeltasHandler(req_reader, res_builder);
@@ -86,6 +90,13 @@ void Storage::ReplicationServer::HeartbeatHandler(slk::Reader *req_reader, slk::
   slk::Save(res, res_builder);
 }
 
+void Storage::ReplicationServer::FrequentHeartbeatHandler(slk::Reader *req_reader, slk::Builder *res_builder) {
+  replication::FrequentHeartbeatReq req;
+  slk::Load(&req, req_reader);
+  replication::FrequentHeartbeatRes res{true};
+  slk::Save(res, res_builder);
+}
+
 void Storage::ReplicationServer::AppendDeltasHandler(slk::Reader *req_reader, slk::Builder *res_builder) {
   replication::AppendDeltasReq req;
   slk::Load(&req, req_reader);

src/storage/v2/replication/replication_server.hpp

@@ -29,6 +29,7 @@ class Storage::ReplicationServer {
  private:
   // RPC handlers
   void HeartbeatHandler(slk::Reader *req_reader, slk::Builder *res_builder);
+  static void FrequentHeartbeatHandler(slk::Reader *req_reader, slk::Builder *res_builder);
   void AppendDeltasHandler(slk::Reader *req_reader, slk::Builder *res_builder);
   void SnapshotHandler(slk::Reader *req_reader, slk::Builder *res_builder);
   void WalFilesHandler(slk::Reader *req_reader, slk::Builder *res_builder);

src/storage/v2/replication/rpc.lcp

@@ -43,6 +43,12 @@ cpp<#
      (current-commit-timestamp :uint64_t)
      (epoch-id "std::string"))))
 
+;; FrequentHearthbeat is required because calling Heartbeat takes the storage lock.
+;; Configured by `replication_replica_check_delay`.
+(lcp:define-rpc frequent-heartbeat
+  (:request ())
+  (:response ((success :bool))))
+
 (lcp:define-rpc snapshot
   (:request ())
   (:response

tests/e2e/CMakeLists.txt

@@ -22,6 +22,7 @@ add_custom_target(memgraph__e2e__${TARGET_PREFIX}__${FILE_NAME} ALL
         DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${FILE_NAME})
 endfunction()
 
+add_subdirectory(server)
 add_subdirectory(replication)
 add_subdirectory(memory)
 add_subdirectory(triggers)
@@ -31,6 +32,8 @@ add_subdirectory(temporal_types)
 add_subdirectory(write_procedures)
 add_subdirectory(magic_functions)
 add_subdirectory(module_file_manager)
-add_subdirectory(websocket)
+add_subdirectory(monitoring_server)
 
 copy_e2e_python_files(pytest_runner pytest_runner.sh "")
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/memgraph-selfsigned.crt DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/memgraph-selfsigned.key DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

tests/e2e/magic_functions/functions/c_read.cpp

@@ -21,13 +21,13 @@ static void ReturnFunctionArgument(struct mgp_list *args, mgp_func_context *ctx,
                                    struct mgp_memory *memory) {
   mgp_value *value{nullptr};
   auto err_code = mgp_list_at(args, 0, &value);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to fetch list!", memory);
     return;
   }
 
   err_code = mgp_func_result_set_value(result, value, memory);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to construct return value!", memory);
     return;
   }
@@ -37,13 +37,13 @@ static void ReturnOptionalArgument(struct mgp_list *args, mgp_func_context *ctx,
                                    struct mgp_memory *memory) {
   mgp_value *value{nullptr};
   auto err_code = mgp_list_at(args, 0, &value);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to fetch list!", memory);
     return;
   }
 
   err_code = mgp_func_result_set_value(result, value, memory);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to construct return value!", memory);
     return;
   }
@@ -51,7 +51,7 @@ static void ReturnOptionalArgument(struct mgp_list *args, mgp_func_context *ctx,
 
 double GetElementFromArg(struct mgp_list *args, int index) {
   mgp_value *value{nullptr};
-  if (mgp_list_at(args, index, &value) != MGP_ERROR_NO_ERROR) {
+  if (mgp_list_at(args, index, &value) != mgp_error::MGP_ERROR_NO_ERROR) {
     throw std::runtime_error("Error while argument fetching.");
   }
 
@@ -87,7 +87,7 @@ static void AddTwoNumbers(struct mgp_list *args, mgp_func_context *ctx, mgp_func
   memgraph::utils::OnScopeExit delete_summation_value([&value] { mgp_value_destroy(value); });
 
   auto err_code = mgp_func_result_set_value(result, value, memory);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to construct return value!", memory);
   }
 }
@@ -99,7 +99,7 @@ static void ReturnNull(struct mgp_list *args, mgp_func_context *ctx, mgp_func_re
   memgraph::utils::OnScopeExit delete_null([&value] { mgp_value_destroy(value); });
 
   auto err_code = mgp_func_result_set_value(result, value, memory);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to fetch list!", memory);
   }
 }
@@ -111,14 +111,14 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
   {
     mgp_func *func{nullptr};
     auto err_code = mgp_module_add_function(module, "return_function_argument", ReturnFunctionArgument, &func);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
     mgp_type *type_any{nullptr};
     mgp_type_any(&type_any);
     err_code = mgp_func_add_arg(func, "argument", type_any);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
   }
@@ -126,7 +126,7 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
   {
     mgp_func *func{nullptr};
     auto err_code = mgp_module_add_function(module, "return_optional_argument", ReturnOptionalArgument, &func);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
@@ -137,7 +137,7 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
     mgp_type *type_int{nullptr};
     mgp_type_int(&type_int);
     err_code = mgp_func_add_opt_arg(func, "opt_argument", type_int, default_value);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
   }
@@ -145,18 +145,18 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
   {
     mgp_func *func{nullptr};
     auto err_code = mgp_module_add_function(module, "add_two_numbers", AddTwoNumbers, &func);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
     mgp_type *type_number{nullptr};
     mgp_type_number(&type_number);
     err_code = mgp_func_add_arg(func, "first", type_number);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
     err_code = mgp_func_add_arg(func, "second", type_number);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
   }
@@ -164,7 +164,7 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
   {
     mgp_func *func{nullptr};
     auto err_code = mgp_module_add_function(module, "return_null", ReturnNull, &func);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
   }

tests/e2e/magic_functions/functions/c_write.cpp

@@ -26,13 +26,13 @@ static void TryToWrite(struct mgp_list *args, mgp_func_context *ctx, mgp_func_re
 
   // Setting a property should set an error
   auto err_code = mgp_vertex_set_property(vertex, name, value);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Cannot set property in the function!", memory);
     return;
   }
 
   err_code = mgp_func_result_set_value(result, value, memory);
-  if (err_code != MGP_ERROR_NO_ERROR) {
+  if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
     mgp_func_result_set_error_msg(result, "Failed to construct return value!", memory);
     return;
   }
@@ -44,21 +44,21 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
   {
     mgp_func *func{nullptr};
     auto err_code = mgp_module_add_function(module, "try_to_write", TryToWrite, &func);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
     mgp_type *type_vertex{nullptr};
     mgp_type_node(&type_vertex);
     err_code = mgp_func_add_arg(func, "argument", type_vertex);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
     mgp_type *type_string{nullptr};
     mgp_type_string(&type_string);
     err_code = mgp_func_add_arg(func, "name", type_string);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
 
@@ -67,7 +67,7 @@ extern "C" int mgp_init_module(struct mgp_module *module, struct mgp_memory *mem
     mgp_type *nullable_type{nullptr};
     mgp_type_nullable(any_type, &nullable_type);
     err_code = mgp_func_add_arg(func, "value", nullable_type);
-    if (err_code != MGP_ERROR_NO_ERROR) {
+    if (err_code != mgp_error::MGP_ERROR_NO_ERROR) {
       return 1;
     }
   }

tests/e2e/memgraph.py

@@ -106,3 +106,10 @@ class MemgraphInstanceRunner:
         self.proc_mg.terminate()
         code = self.proc_mg.wait()
         assert code == 0, "The Memgraph process exited with non-zero!"
+
+    def kill(self):
+        if not self.is_running():
+            return
+        self.proc_mg.kill()
+        code = self.proc_mg.wait()
+        assert code == 9, "The killed Memgraph process exited with non-nine!"

tests/e2e/monitoring_server/CMakeLists.txt

@@ -0,0 +1,8 @@
+find_package(gflags REQUIRED)
+find_package(Boost REQUIRED)
+
+add_executable(memgraph__e2e__monitoring_server monitoring.cpp)
+target_link_libraries(memgraph__e2e__monitoring_server mgclient mg-utils json gflags Boost::headers)
+
+add_executable(memgraph__e2e__monitoring_server_ssl monitoring_ssl.cpp)
+target_link_libraries(memgraph__e2e__monitoring_server_ssl mgclient mg-utils json gflags Boost::headers)

tests/e2e/monitoring_server/workloads.yaml

@@ -1,15 +1,15 @@
-cert_file: &cert_file "$PROJECT_DIR/tests/e2e/websocket/memgraph-selfsigned.crt"
-key_file: &key_file "$PROJECT_DIR/tests/e2e/websocket/memgraph-selfsigned.key"
+cert_file: &cert_file "$PROJECT_DIR/tests/e2e/memgraph-selfsigned.crt"
+key_file: &key_file "$PROJECT_DIR/tests/e2e/memgraph-selfsigned.key"
 bolt_port: &bolt_port "7687"
 monitoring_port: &monitoring_port "7444"
 template_cluster: &template_cluster
   cluster:
-    websocket:
+    monitoring:
       args: ["--bolt-port=7687", "--log-level=TRACE", "--"]
-      log_file: "websocket-e2e.log"
+      log_file: "monitoring-websocket-e2e.log"
 template_cluster_ssl: &template_cluster_ssl
   cluster:
-    websocket:
+    monitoring:
       args:
         [
           "--bolt-port",
@@ -23,16 +23,15 @@ template_cluster_ssl: &template_cluster_ssl
           *key_file,
           "--",
         ]
-      log_file: "websocket-ssl-e2e.log"
+      log_file: "monitoring-websocket-ssl-e2e.log"
       ssl: true
 
 workloads:
-  - name: "Websocket"
-    binary: "tests/e2e/websocket/memgraph__e2e__websocket"
+  - name: "Monitoring server using WebSocket"
+    binary: "tests/e2e/monitoring_server/memgraph__e2e__monitoring_server"
     args: ["--bolt-port", *bolt_port, "--monitoring-port", *monitoring_port]
     <<: *template_cluster
-  - name: "Websocket SSL"
-    binary: "tests/e2e/websocket/memgraph__e2e__websocket_ssl"
+  - name: "Monitoring server using WebSocket SSL"
+    binary: "tests/e2e/monitoring_server/memgraph__e2e__monitoring_server_ssl"
     args: ["--bolt-port", *bolt_port, "--monitoring-port", *monitoring_port]
     <<: *template_cluster_ssl
-

tests/e2e/replication/CMakeLists.txt

@@ -5,3 +5,7 @@ target_link_libraries(memgraph__e2e__replication__constraints gflags mgclient mg
 
 add_executable(memgraph__e2e__replication__read_write_benchmark read_write_benchmark.cpp)
 target_link_libraries(memgraph__e2e__replication__read_write_benchmark gflags json mgclient mg-utils mg-io Threads::Threads)
+
+copy_e2e_python_files(replication_show common.py)
+copy_e2e_python_files(replication_show conftest.py)
+copy_e2e_python_files(replication_show show.py)

tests/e2e/replication/common.py

@@ -0,0 +1,26 @@
+# Copyright 2022 Memgraph Ltd.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+# License, and you may not use this file except in compliance with the Business Source License.
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0, included in the file
+# licenses/APL.txt.
+
+import mgclient
+import typing
+
+
+def execute_and_fetch_all(
+    cursor: mgclient.Cursor, query: str, params: dict = {}
+) -> typing.List[tuple]:
+    cursor.execute(query, params)
+    return cursor.fetchall()
+
+
+def connect(**kwargs) -> mgclient.Connection:
+    connection = mgclient.connect(**kwargs)
+    connection.autocommit = True
+    return connection

tests/e2e/replication/conftest.py

@@ -0,0 +1,44 @@
+# Copyright 2022 Memgraph Ltd.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+# License, and you may not use this file except in compliance with the Business Source License.
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0, included in the file
+# licenses/APL.txt.
+
+import pytest
+
+from common import execute_and_fetch_all, connect
+
+
+# The fixture here is more complex because the connection has to be
+# parameterized based on the test parameters (info has to be available on both
+# sides).
+#
+# https://docs.pytest.org/en/latest/example/parametrize.html#indirect-parametrization
+# is not an elegant/feasible solution here.
+#
+# The solution was independently developed and then I stumbled upon the same
+# approach here https://stackoverflow.com/a/68286553/4888809 which I think is
+# optimal.
+@pytest.fixture(scope="function")
+def connection():
+    connection_holder = None
+    role_holder = None
+
+    def inner_connection(port, role):
+        nonlocal connection_holder, role_holder
+        connection_holder = connect(host="localhost", port=port)
+        role_holder = role
+        return connection_holder
+
+    yield inner_connection
+
+    # Only main instance can be cleaned up because replicas do NOT accept
+    # writes.
+    if role_holder == "main":
+        cursor = connection_holder.cursor()
+        execute_and_fetch_all(cursor, "MATCH (n) DETACH DELETE n;")

tests/e2e/replication/show.py

@@ -0,0 +1,46 @@
+# Copyright 2022 Memgraph Ltd.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+# License, and you may not use this file except in compliance with the Business Source License.
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0, included in the file
+# licenses/APL.txt.
+
+import sys
+
+import pytest
+from common import execute_and_fetch_all
+
+
+@pytest.mark.parametrize(
+    "port, role",
+    [(7687, "main"), (7688, "replica"), (7689, "replica"), (7690, "replica")],
+)
+def test_show_replication_role(port, role, connection):
+    cursor = connection(port, role).cursor()
+    data = execute_and_fetch_all(cursor, "SHOW REPLICATION ROLE;")
+    assert cursor.description[0].name == "replication role"
+    assert data[0][0] == role
+
+
+def test_show_replicas(connection):
+    cursor = connection(7687, "main").cursor()
+    actual_data = set(execute_and_fetch_all(cursor, "SHOW REPLICAS;"))
+
+    expected_column_names = {"name", "socket_address", "sync_mode", "timeout"}
+    actual_column_names = {x.name for x in cursor.description}
+    assert expected_column_names == actual_column_names
+
+    expected_data = {
+        ("replica_1", "127.0.0.1:10001", "sync", 0),
+        ("replica_2", "127.0.0.1:10002", "sync", 1.0),
+        ("replica_3", "127.0.0.1:10003", "async", None),
+    }
+    assert expected_data == actual_data
+
+
+if __name__ == "__main__":
+    sys.exit(pytest.main([__file__, "-rA"]))

tests/e2e/replication/workloads.yaml

@@ -46,4 +46,31 @@ workloads:
     args: []
     <<: *template_cluster
 
-
+  - name: "Show"
+    binary: "tests/e2e/pytest_runner.sh"
+    args: ["replication/show.py"]
+    cluster:
+      replica_1:
+        args: ["--bolt-port", "7688", "--log-level=TRACE"]
+        log_file: "replication-e2e-replica1.log"
+        setup_queries: ["SET REPLICATION ROLE TO REPLICA WITH PORT 10001;"]
+        validation_queries: []
+      replica_2:
+        args: ["--bolt-port", "7689", "--log-level=TRACE"]
+        log_file: "replication-e2e-replica2.log"
+        setup_queries: ["SET REPLICATION ROLE TO REPLICA WITH PORT 10002;"]
+        validation_queries: []
+      replica_3:
+        args: ["--bolt-port", "7690", "--log-level=TRACE"]
+        log_file: "replication-e2e-replica3.log"
+        setup_queries: ["SET REPLICATION ROLE TO REPLICA WITH PORT 10003;"]
+        validation_queries: []
+      main:
+        args: ["--bolt-port", "7687", "--log-level=TRACE"]
+        log_file: "replication-e2e-main.log"
+        setup_queries: [
+          "REGISTER REPLICA replica_1 SYNC WITH TIMEOUT 0 TO '127.0.0.1:10001'",
+          "REGISTER REPLICA replica_2 SYNC WITH TIMEOUT 1 TO '127.0.0.1:10002'",
+          "REGISTER REPLICA replica_3 ASYNC TO '127.0.0.1:10003'"
+        ]
+        validation_queries: []

tests/e2e/server/CMakeLists.txt

@@ -0,0 +1,8 @@
+find_package(gflags REQUIRED)
+find_package(Boost REQUIRED)
+
+add_executable(memgraph__e2e__server_connection server_connection.cpp)
+target_link_libraries(memgraph__e2e__server_connection mgclient mg-utils gflags)
+
+add_executable(memgraph__e2e__server_ssl_connection server_ssl_connection.cpp)
+target_link_libraries(memgraph__e2e__server_ssl_connection mgclient mg-utils gflags)

tests/e2e/server/common.hpp

@@ -0,0 +1,60 @@
+// Copyright 2022 Memgraph Ltd.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+// License, and you may not use this file except in compliance with the Business Source License.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+#include <chrono>
+#include <functional>
+#include <thread>
+
+#include <spdlog/spdlog.h>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <boost/system/detail/error_code.hpp>
+#include <mgclient.hpp>
+
+#include "utils/logging.hpp"
+
+inline void OnTimeoutExpiration(const boost::system::error_code &ec) {
+  // Timer was not cancelled, take necessary action.
+  MG_ASSERT(!!ec, "Connection timeout");
+}
+
+inline void EstablishConnection(const uint16_t bolt_port, const bool use_ssl) {
+  spdlog::info("Testing successfull connection from one client");
+  mg::Client::Init();
+
+  boost::asio::io_context ioc;
+  boost::asio::steady_timer timer(ioc, std::chrono::seconds(5));
+  timer.async_wait(std::bind_front(&OnTimeoutExpiration));
+  std::jthread bg_thread([&ioc]() { ioc.run(); });
+
+  auto client = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = use_ssl});
+  MG_ASSERT(client, "Failed to connect!");
+  timer.cancel();
+}
+
+inline void EstablishMultipleConnections(const uint16_t bolt_port, const bool use_ssl) {
+  spdlog::info("Testing successfull connection from multiple clients");
+  mg::Client::Init();
+
+  boost::asio::io_context ioc;
+  boost::asio::steady_timer timer(ioc, std::chrono::seconds(5));
+  timer.async_wait(std::bind_front(&OnTimeoutExpiration));
+  std::jthread bg_thread([&ioc]() { ioc.run(); });
+
+  auto client1 = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = use_ssl});
+  auto client2 = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = use_ssl});
+  auto client3 = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = use_ssl});
+
+  MG_ASSERT(client1, "Failed to connect!");
+  MG_ASSERT(client2, "Failed to connect!");
+  MG_ASSERT(client3, "Failed to connect!");
+  timer.cancel();
+}

tests/e2e/server/server_connection.cpp

@@ -0,0 +1,56 @@
+// Copyright 2022 Memgraph Ltd.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+// License, and you may not use this file except in compliance with the Business Source License.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+#include <unistd.h>
+#include <chrono>
+#include <cstddef>
+
+#include <gflags/gflags.h>
+#include <spdlog/spdlog.h>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <boost/system/detail/error_code.hpp>
+#include <mgclient.hpp>
+
+#include "common.hpp"
+#include "utils/logging.hpp"
+
+DEFINE_uint64(bolt_port, 7687, "Bolt port");
+
+void EstablishSSLConnectionToNonSSLServer(const auto bolt_port) {
+  spdlog::info("Testing that connection fails when connecting to non SSL server while using SSL");
+  mg::Client::Init();
+
+  boost::asio::io_context ioc;
+  boost::asio::steady_timer timer(ioc, std::chrono::seconds(5));
+  timer.async_wait(std::bind_front(&OnTimeoutExpiration));
+  std::jthread bg_thread([&ioc]() { ioc.run(); });
+
+  auto client = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = true});
+
+  MG_ASSERT(client == nullptr, "Connection not refused when connecting with SSL turned on to a non SSL server!");
+  timer.cancel();
+}
+
+int main(int argc, char **argv) {
+  google::SetUsageMessage("Memgraph E2E server connection!");
+  gflags::ParseCommandLineFlags(&argc, &argv, true);
+  MG_ASSERT(FLAGS_bolt_port != 0);
+  memgraph::logging::RedirectToStderr();
+
+  const auto bolt_port = static_cast<uint16_t>(FLAGS_bolt_port);
+
+  EstablishConnection(bolt_port, false);
+  EstablishMultipleConnections(bolt_port, false);
+  EstablishSSLConnectionToNonSSLServer(bolt_port);
+
+  return 0;
+}

tests/e2e/server/server_ssl_connection.cpp

@@ -0,0 +1,57 @@
+// Copyright 2022 Memgraph Ltd.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+// License, and you may not use this file except in compliance with the Business Source License.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+#include <unistd.h>
+#include <chrono>
+#include <cstddef>
+#include <thread>
+
+#include <gflags/gflags.h>
+#include <spdlog/spdlog.h>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <boost/system/detail/error_code.hpp>
+#include <mgclient.hpp>
+
+#include "common.hpp"
+#include "utils/logging.hpp"
+
+DEFINE_uint64(bolt_port, 7687, "Bolt port");
+
+void EstablishNonSSLConnectionToSSLServer(const auto bolt_port) {
+  spdlog::info("Testing that connection fails when connecting to SSL server without using SSL");
+  mg::Client::Init();
+
+  boost::asio::io_context ioc;
+  boost::asio::steady_timer timer(ioc, std::chrono::seconds(5));
+  timer.async_wait(std::bind_front(&OnTimeoutExpiration));
+  std::jthread bg_thread([&ioc]() { ioc.run(); });
+
+  auto client = mg::Client::Connect({.host = "127.0.0.1", .port = bolt_port, .use_ssl = false});
+
+  MG_ASSERT(client == nullptr, "Connection not refused when conneting without SSL turned on to a SSL server!");
+  timer.cancel();
+}
+
+int main(int argc, char **argv) {
+  google::SetUsageMessage("Memgraph E2E server SSL connection!");
+  gflags::ParseCommandLineFlags(&argc, &argv, true);
+  MG_ASSERT(FLAGS_bolt_port != 0);
+  memgraph::logging::RedirectToStderr();
+
+  const auto bolt_port = static_cast<uint16_t>(FLAGS_bolt_port);
+
+  EstablishConnection(bolt_port, true);
+  EstablishMultipleConnections(bolt_port, true);
+  EstablishNonSSLConnectionToSSLServer(bolt_port);
+
+  return 0;
+}

tests/e2e/server/workloads.yaml

@@ -0,0 +1,34 @@
+cert_file: &cert_file "$PROJECT_DIR/tests/e2e/memgraph-selfsigned.crt"
+key_file: &key_file "$PROJECT_DIR/tests/e2e/memgraph-selfsigned.key"
+bolt_port: &bolt_port "7687"
+template_cluster: &template_cluster
+  cluster:
+    server:
+      args: ["--bolt-port=7687", "--log-level=TRACE", "--"]
+      log_file: "server-connection-e2e.log"
+template_cluster_ssl: &template_cluster_ssl
+  cluster:
+    server:
+      args:
+        [
+          "--bolt-port",
+          *bolt_port,
+          "--log-level=TRACE",
+          "--bolt-cert-file",
+          *cert_file,
+          "--bolt-key-file",
+          *key_file,
+          "--",
+        ]
+      log_file: "server-connection-ssl-e2e.log"
+      ssl: true
+
+workloads:
+  - name: "Server connection"
+    binary: "tests/e2e/server/memgraph__e2e__server_connection"
+    args: ["--bolt-port", *bolt_port]
+    <<: *template_cluster
+  - name: "Server SSL connection"
+    binary: "tests/e2e/server/memgraph__e2e__server_ssl_connection"
+    args: ["--bolt-port", *bolt_port]
+    <<: *template_cluster_ssl

tests/e2e/streams/README.md

@@ -0,0 +1,8 @@
+There are three docker-compose files in this directory:
+* [kafka.yml](kafka.yml)
+* [pulsar.yml](pulsar.yml)
+* [redpanda.yml](redpanda.yml)
+
+To run one of them, use the `docker-compose -f <filename> up -V` command. Optionally you can append `-d` to detach from the started containers. You can stop the detach containers by `docker-compose -f <filename> down`.
+
+If you experience strange errors, try to clean up the previously created containers by `docker-compose -f <filename> rm -svf`.

tests/e2e/streams/common.py

@@ -12,7 +12,7 @@
 import mgclient
 import time
 
-from multiprocessing import Process, Value
+from multiprocessing import Manager, Process, Value
 
 # These are the indices of the different values in the result of SHOW STREAM
 # query
@@ -26,8 +26,10 @@ IS_RUNNING = 6
 
 # These are the indices of the query and parameters in the result of CHECK
 # STREAM query
-QUERY = 0
-PARAMS = 1
+QUERIES = 0
+RAWMESSAGES = 1
+PARAMETERS_LITERAL = "parameters"
+QUERY_LITERAL = "query"
 
 SIMPLE_MSG = b"message"
 
@@ -45,13 +47,13 @@ def connect(**kwargs):
 
 def timed_wait(fun):
     start_time = time.time()
-    seconds = 10
+    SECONDS = 10
 
     while True:
         current_time = time.time()
         elapsed_time = current_time - start_time
 
-        if elapsed_time > seconds:
+        if elapsed_time > SECONDS:
             return False
 
         if fun():
@@ -62,13 +64,13 @@ def timed_wait(fun):
 
 def check_one_result_row(cursor, query):
     start_time = time.time()
-    seconds = 10
+    SECONDS = 10
 
     while True:
         current_time = time.time()
         elapsed_time = current_time - start_time
 
-        if elapsed_time > seconds:
+        if elapsed_time > SECONDS:
             return False
 
         cursor.execute(query)
@@ -81,12 +83,10 @@ def check_one_result_row(cursor, query):
 
 
 def check_vertex_exists_with_properties(cursor, properties):
-    properties_string = ', '.join([f'{k}: {v}' for k, v in properties.items()])
+    properties_string = ", ".join([f"{k}: {v}" for k, v in properties.items()])
     assert check_one_result_row(
         cursor,
-        "MATCH (n: MESSAGE {"
-        f"{properties_string}"
-        "}) RETURN n",
+        f"MATCH (n: MESSAGE {{{properties_string}}}) RETURN n",
     )
 
 
@@ -129,28 +129,27 @@ def validate_info(actual_stream_info, expected_stream_info):
     for info, expected_info in zip(actual_stream_info, expected_stream_info):
         assert info == expected_info
 
+
 def check_stream_info(cursor, stream_name, expected_stream_info):
     stream_info = get_stream_info(cursor, stream_name)
     validate_info(stream_info, expected_stream_info)
 
+
 def kafka_check_vertex_exists_with_topic_and_payload(cursor, topic, payload_bytes):
-    decoded_payload = payload_bytes.decode('utf-8')
-    check_vertex_exists_with_properties(
-            cursor, {'topic': f'"{topic}"', 'payload': f'"{decoded_payload}"'})
+    decoded_payload = payload_bytes.decode("utf-8")
+    check_vertex_exists_with_properties(cursor, {"topic": f'"{topic}"', "payload": f'"{decoded_payload}"'})
 
 
-PULSAR_SERVICE_URL = 'pulsar://127.0.0.1:6650'
+PULSAR_SERVICE_URL = "pulsar://127.0.0.1:6650"
+
 
 def pulsar_default_namespace_topic(topic):
-    return f'persistent://public/default/{topic}'
+    return f"persistent://public/default/{topic}"
 
 
 def test_start_and_stop_during_check(
-        operation,
-        connection,
-        stream_creator,
-        message_sender,
-        already_stopped_error):
+    operation, connection, stream_creator, message_sender, already_stopped_error, batchSize
+):
     # This test is quite complex. The goal is to call START/STOP queries
     # while a CHECK query is waiting for its result. Because the Global
     # Interpreter Lock, running queries on multiple threads is not useful,
@@ -161,11 +160,9 @@ def test_start_and_stop_during_check(
     # synchronize between the different processes. Each value represents a
     # specific phase of the execution of the processes.
     assert operation in ["START", "STOP"]
+    assert batchSize == 1
     cursor = connection.cursor()
-    execute_and_fetch_all(
-        cursor,
-        stream_creator('test_stream')
-    )
+    execute_and_fetch_all(cursor, stream_creator("test_stream"))
 
     check_counter = Value("i", 0)
     check_result_len = Value("i", 0)
@@ -185,7 +182,9 @@ def test_start_and_stop_during_check(
         result = execute_and_fetch_all(cursor, "CHECK STREAM test_stream")
         result_len.value = len(result)
         counter.value = CHECK_AFTER_FETCHALL
-        if len(result) > 0 and "payload: 'message'" in result[0][QUERY]:
+        if (
+            len(result) > 0 and "payload: 'message'" in result[0][QUERIES][0][QUERY_LITERAL]
+        ):  # The 0 is only correct because batchSize is 1
             counter.value = CHECK_CORRECT_RESULT
         else:
             counter.value = CHECK_INCORRECT_RESULT
@@ -213,12 +212,8 @@ def test_start_and_stop_during_check(
         except Exception:
             counter.value = OP_UNEXPECTED_EXCEPTION
 
-    check_stream_proc = Process(
-        target=call_check, daemon=True, args=(check_counter, check_result_len)
-    )
-    operation_proc = Process(
-        target=call_operation, daemon=True, args=(operation_counter,)
-    )
+    check_stream_proc = Process(target=call_check, daemon=True, args=(check_counter, check_result_len))
+    operation_proc = Process(target=call_operation, daemon=True, args=(operation_counter,))
 
     try:
         check_stream_proc.start()
@@ -227,9 +222,7 @@ def test_start_and_stop_during_check(
 
         assert timed_wait(lambda: check_counter.value == CHECK_BEFORE_EXECUTE)
         assert timed_wait(lambda: get_is_running(cursor, "test_stream"))
-        assert check_counter.value == CHECK_BEFORE_EXECUTE, (
-            "SHOW STREAMS " "was blocked until the end of CHECK STREAM"
-        )
+        assert check_counter.value == CHECK_BEFORE_EXECUTE, "SHOW STREAMS " "was blocked until the end of CHECK STREAM"
         operation_proc.start()
         assert timed_wait(lambda: operation_counter.value == OP_BEFORE_EXECUTE)
 
@@ -255,31 +248,156 @@ def test_start_and_stop_during_check(
         if operation_proc.is_alive():
             operation_proc.terminate()
 
+
 def test_start_checked_stream_after_timeout(connection, stream_creator):
     cursor = connection.cursor()
-    execute_and_fetch_all(
-        cursor,
-        stream_creator('test_stream')
-    )
+    execute_and_fetch_all(cursor, stream_creator("test_stream"))
 
-    timeout_ms = 2000
+    TIMEOUT_MS = 2000
 
     def call_check():
-        execute_and_fetch_all(
-            connect().cursor(),
-            f"CHECK STREAM test_stream TIMEOUT {timeout_ms}")
+        execute_and_fetch_all(connect().cursor(), f"CHECK STREAM test_stream TIMEOUT {TIMEOUT_MS}")
 
     check_stream_proc = Process(target=call_check, daemon=True)
 
     start = time.time()
     check_stream_proc.start()
-    assert timed_wait(
-        lambda: get_is_running(
-            cursor, "test_stream"))
+    assert timed_wait(lambda: get_is_running(cursor, "test_stream"))
     start_stream(cursor, "test_stream")
     end = time.time()
 
-    assert (end - start) < 1.3 * \
-        timeout_ms, "The START STREAM was blocked too long"
+    assert (end - start) < 1.3 * TIMEOUT_MS, "The START STREAM was blocked too long"
     assert get_is_running(cursor, "test_stream")
     stop_stream(cursor, "test_stream")
+
+
+def test_check_stream_same_number_of_queries_than_messages(connection, stream_creator, message_sender):
+    BATCH_SIZE = 2
+    BATCH_LIMIT = 3
+    STREAM_NAME = "test_stream"
+    cursor = connection.cursor()
+    execute_and_fetch_all(cursor, stream_creator(STREAM_NAME, BATCH_SIZE))
+    time.sleep(2)
+
+    test_results = Manager().Namespace()
+
+    def check_stream(stream_name, batch_limit):
+        connection = connect()
+        cursor = connection.cursor()
+        test_results.value = execute_and_fetch_all(cursor, f"CHECK STREAM {stream_name} BATCH_LIMIT {batch_limit} ")
+
+    check_stream_proc = Process(target=check_stream, args=(STREAM_NAME, BATCH_LIMIT))
+    check_stream_proc.start()
+    time.sleep(2)
+
+    MESSAGES = [b"01", b"02", b"03", b"04", b"05", b"06"]
+    for message in MESSAGES:
+        message_sender(message)
+
+    check_stream_proc.join()
+
+    # # Transformation does not do any filtering and simply create queries as "Messages: {contentOfMessage}". Queries should be like:
+    # # -Batch 1: [{parameters: {"value": "Parameter: 01"}, query: "Message: 01"},
+    # #            {parameters: {"value": "Parameter: 02"}, query: "Message: 02"}]
+    # # -Batch 2: [{parameters: {"value": "Parameter: 03"}, query: "Message: 03"},
+    # #            {parameters: {"value": "Parameter: 04"}, query: "Message: 04"}]
+    # # -Batch 3: [{parameters: {"value": "Parameter: 05"}, query: "Message: 05"},
+    # #            {parameters: {"value": "Parameter: 06"}, query: "Message: 06"}]
+
+    assert len(test_results.value) == BATCH_LIMIT
+
+    expected_queries_and_raw_messages_1 = (
+        [  # queries
+            {PARAMETERS_LITERAL: {"value": "Parameter: 01"}, QUERY_LITERAL: "Message: 01"},
+            {PARAMETERS_LITERAL: {"value": "Parameter: 02"}, QUERY_LITERAL: "Message: 02"},
+        ],
+        ["01", "02"],  # raw message
+    )
+
+    expected_queries_and_raw_messages_2 = (
+        [  # queries
+            {PARAMETERS_LITERAL: {"value": "Parameter: 03"}, QUERY_LITERAL: "Message: 03"},
+            {PARAMETERS_LITERAL: {"value": "Parameter: 04"}, QUERY_LITERAL: "Message: 04"},
+        ],
+        ["03", "04"],  # raw message
+    )
+
+    expected_queries_and_raw_messages_3 = (
+        [  # queries
+            {PARAMETERS_LITERAL: {"value": "Parameter: 05"}, QUERY_LITERAL: "Message: 05"},
+            {PARAMETERS_LITERAL: {"value": "Parameter: 06"}, QUERY_LITERAL: "Message: 06"},
+        ],
+        ["05", "06"],  # raw message
+    )
+
+    assert expected_queries_and_raw_messages_1 == test_results.value[0]
+    assert expected_queries_and_raw_messages_2 == test_results.value[1]
+    assert expected_queries_and_raw_messages_3 == test_results.value[2]
+
+
+def test_check_stream_different_number_of_queries_than_messages(connection, stream_creator, message_sender):
+    BATCH_SIZE = 2
+    BATCH_LIMIT = 3
+    STREAM_NAME = "test_stream"
+    cursor = connection.cursor()
+    execute_and_fetch_all(cursor, stream_creator(STREAM_NAME, BATCH_SIZE))
+    time.sleep(2)
+
+    results = Manager().Namespace()
+
+    def check_stream(stream_name, batch_limit):
+        connection = connect()
+        cursor = connection.cursor()
+        results.value = execute_and_fetch_all(cursor, f"CHECK STREAM {stream_name} BATCH_LIMIT {batch_limit} ")
+
+    check_stream_proc = Process(target=check_stream, args=(STREAM_NAME, BATCH_LIMIT))
+    check_stream_proc.start()
+    time.sleep(2)
+
+    MESSAGES = [b"a_01", b"a_02", b"03", b"04", b"b_05", b"06"]
+    for message in MESSAGES:
+        message_sender(message)
+
+    check_stream_proc.join()
+
+    # Transformation does some filtering: if message contains "a", it is ignored.
+    # Transformation also has special rule to create query if message is "b": it create more queries.
+    #
+    # Queries should be like:
+    # -Batch 1: []
+    # -Batch 2: [{parameters: {"value": "Parameter: 03"}, query: "Message: 03"},
+    #            {parameters: {"value": "Parameter: 04"}, query: "Message: 04"}]
+    # -Batch 3: [{parameters: {"value": "Parameter: 05"}, query: "Message: 05"},
+    #            {parameters: {"value": "Parameter: extra_05"}, query: "Message: extra_05"}
+    #            {parameters: {"value": "Parameter: 06"}, query: "Message: 06"}]
+
+    assert len(results.value) == BATCH_LIMIT
+
+    expected_queries_and_raw_messages_1 = (
+        [],  # queries
+        ["a_01", "a_02"],  # raw message
+    )
+
+    expected_queries_and_raw_messages_2 = (
+        [  # queries
+            {PARAMETERS_LITERAL: {"value": "Parameter: 03"}, QUERY_LITERAL: "Message: 03"},
+            {PARAMETERS_LITERAL: {"value": "Parameter: 04"}, QUERY_LITERAL: "Message: 04"},
+        ],
+        ["03", "04"],  # raw message
+    )
+
+    expected_queries_and_raw_messages_3 = (
+        [  # queries
+            {PARAMETERS_LITERAL: {"value": "Parameter: b_05"}, QUERY_LITERAL: "Message: b_05"},
+            {
+                PARAMETERS_LITERAL: {"value": "Parameter: extra_b_05"},
+                QUERY_LITERAL: "Message: extra_b_05",
+            },
+            {PARAMETERS_LITERAL: {"value": "Parameter: 06"}, QUERY_LITERAL: "Message: 06"},
+        ],
+        ["b_05", "06"],  # raw message
+    )
+
+    assert expected_queries_and_raw_messages_1 == results.value[0]
+    assert expected_queries_and_raw_messages_2 == results.value[1]
+    assert expected_queries_and_raw_messages_3 == results.value[2]

tests/e2e/streams/kafka.yml

@@ -1,13 +1,13 @@
-version: "3"
+version: '3.7'
 services:
   zookeeper:
-    image: 'bitnami/zookeeper:3.6.3-debian-10-r33'
+    image: 'bitnami/zookeeper:latest'
     ports:
       - '2181:2181'
     environment:
       - ALLOW_ANONYMOUS_LOGIN=yes
   kafka:
-    image: 'bitnami/kafka:2.8.0-debian-10-r49'
+    image: 'bitnami/kafka:latest'
     ports:
       - '9092:9092'
     environment:
@@ -18,9 +18,3 @@ services:
       - ALLOW_PLAINTEXT_LISTENER=yes
     depends_on:
       - zookeeper
-  pulsar:
-    image: 'apachepulsar/pulsar:2.8.1'
-    ports:
-      - '6652:8080'
-      - '6650:6650'
-    entrypoint: ['bin/pulsar', 'standalone']

tests/e2e/streams/kafka_streams_tests.py

@@ -18,12 +18,10 @@ import time
 from multiprocessing import Process, Value
 import common
 
-TRANSFORMATIONS_TO_CHECK_C = [
-    "empty_transformation"]
+TRANSFORMATIONS_TO_CHECK_C = ["empty_transformation"]
+
+TRANSFORMATIONS_TO_CHECK_PY = ["kafka_transform.simple", "kafka_transform.with_parameters"]
 
-TRANSFORMATIONS_TO_CHECK_PY = [
-    "kafka_transform.simple",
-    "kafka_transform.with_parameters"]
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_PY)
 def test_simple(kafka_producer, kafka_topics, connection, transformation):
@@ -31,9 +29,7 @@ def test_simple(kafka_producer, kafka_topics, connection, transformation):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM test "
-        f"TOPICS {','.join(kafka_topics)} "
-        f"TRANSFORM {transformation}",
+        f"CREATE KAFKA STREAM test TOPICS {','.join(kafka_topics)} TRANSFORM {transformation}",
     )
     common.start_stream(cursor, "test")
     time.sleep(5)
@@ -42,16 +38,11 @@ def test_simple(kafka_producer, kafka_topics, connection, transformation):
         kafka_producer.send(topic, common.SIMPLE_MSG).get(timeout=60)
 
     for topic in kafka_topics:
-        common.kafka_check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        common.kafka_check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_PY)
-def test_separate_consumers(
-        kafka_producer,
-        kafka_topics,
-        connection,
-        transformation):
+def test_separate_consumers(kafka_producer, kafka_topics, connection, transformation):
     assert len(kafka_topics) > 0
     cursor = connection.cursor()
 
@@ -61,9 +52,7 @@ def test_separate_consumers(
         stream_names.append(stream_name)
         common.execute_and_fetch_all(
             cursor,
-            f"CREATE KAFKA STREAM {stream_name} "
-            f"TOPICS {topic} "
-            f"TRANSFORM {transformation}",
+            f"CREATE KAFKA STREAM {stream_name} TOPICS {topic} TRANSFORM {transformation}",
         )
 
     for stream_name in stream_names:
@@ -75,12 +64,10 @@ def test_separate_consumers(
         kafka_producer.send(topic, common.SIMPLE_MSG).get(timeout=60)
 
     for topic in kafka_topics:
-        common.kafka_check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        common.kafka_check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
 
 
-def test_start_from_last_committed_offset(
-        kafka_producer, kafka_topics, connection):
+def test_start_from_last_committed_offset(kafka_producer, kafka_topics, connection):
     # This test creates a stream, consumes a message to have a committed
     # offset, then destroys the stream. A new message is sent before the
     # stream is recreated and then restarted. This simulates when Memgraph is
@@ -90,16 +77,15 @@ def test_start_from_last_committed_offset(
     assert len(kafka_topics) > 0
     cursor = connection.cursor()
     common.execute_and_fetch_all(
-        cursor, "CREATE KAFKA STREAM test "
-        f"TOPICS {kafka_topics[0]} "
-        "TRANSFORM kafka_transform.simple", )
+        cursor,
+        f"CREATE KAFKA STREAM test TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple",
+    )
     common.start_stream(cursor, "test")
     time.sleep(1)
 
     kafka_producer.send(kafka_topics[0], common.SIMPLE_MSG).get(timeout=60)
 
-    common.kafka_check_vertex_exists_with_topic_and_payload(
-        cursor, kafka_topics[0], common.SIMPLE_MSG)
+    common.kafka_check_vertex_exists_with_topic_and_payload(cursor, kafka_topics[0], common.SIMPLE_MSG)
 
     common.stop_stream(cursor, "test")
     common.drop_stream(cursor, "test")
@@ -111,36 +97,30 @@ def test_start_from_last_committed_offset(
     for message in messages:
         vertices_with_msg = common.execute_and_fetch_all(
             cursor,
-            "MATCH (n: MESSAGE {" f"payload: '{message.decode('utf-8')}'" "}) RETURN n",
+            f"MATCH (n: MESSAGE {{payload: '{message.decode('utf-8')}'}}) RETURN n",
         )
 
         assert len(vertices_with_msg) == 0
 
     common.execute_and_fetch_all(
-        cursor, "CREATE KAFKA STREAM test "
-        f"TOPICS {kafka_topics[0]} "
-        "TRANSFORM kafka_transform.simple", )
+        cursor,
+        f"CREATE KAFKA STREAM test TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple",
+    )
     common.start_stream(cursor, "test")
 
     for message in messages:
-        common.kafka_check_vertex_exists_with_topic_and_payload(
-            cursor, kafka_topics[0], message)
+        common.kafka_check_vertex_exists_with_topic_and_payload(cursor, kafka_topics[0], message)
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_PY)
-def test_check_stream(
-        kafka_producer,
-        kafka_topics,
-        connection,
-        transformation):
+def test_check_stream(kafka_producer, kafka_topics, connection, transformation):
     assert len(kafka_topics) > 0
+    BATCH_SIZE = 1
+    INDEX_OF_FIRST_BATCH = 0
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM test "
-        f"TOPICS {kafka_topics[0]} "
-        f"TRANSFORM {transformation} "
-        "BATCH_SIZE 1",
+        f"CREATE KAFKA STREAM test TOPICS {kafka_topics[0]} TRANSFORM {transformation} BATCH_SIZE {BATCH_SIZE}",
     )
     common.start_stream(cursor, "test")
     time.sleep(1)
@@ -153,24 +133,28 @@ def test_check_stream(
         kafka_producer.send(kafka_topics[0], message).get(timeout=60)
 
     def check_check_stream(batch_limit):
-        assert (
-            transformation == "kafka_transform.simple"
-            or transformation == "kafka_transform.with_parameters"
-        )
-        test_results = common.execute_and_fetch_all(
-            cursor, f"CHECK STREAM test BATCH_LIMIT {batch_limit}"
-        )
+        assert transformation == "kafka_transform.simple" or transformation == "kafka_transform.with_parameters"
+        test_results = common.execute_and_fetch_all(cursor, f"CHECK STREAM test BATCH_LIMIT {batch_limit}")
         assert len(test_results) == batch_limit
 
         for i in range(batch_limit):
             message_as_str = messages[i].decode("utf-8")
+            assert (
+                BATCH_SIZE == 1
+            )  # If batch size != 1, then the usage of INDEX_OF_FIRST_BATCH must change: the result will have a list of queries (pair<parameters,query>)
+
             if transformation == "kafka_transform.simple":
-                assert f"payload: '{message_as_str}'" in test_results[i][common.QUERY]
-                assert test_results[i][common.PARAMS] is None
+                assert (
+                    f"payload: '{message_as_str}'"
+                    in test_results[i][common.QUERIES][INDEX_OF_FIRST_BATCH][common.QUERY_LITERAL]
+                )
+                assert test_results[i][common.QUERIES][INDEX_OF_FIRST_BATCH][common.PARAMETERS_LITERAL] is None
             else:
-                assert f"payload: $payload" in test_results[i][
-                    common.QUERY] and f"topic: $topic" in test_results[i][common.QUERY]
-                parameters = test_results[i][common.PARAMS]
+                assert (
+                    f"payload: $payload" in test_results[i][common.QUERIES][INDEX_OF_FIRST_BATCH][common.QUERY_LITERAL]
+                    and f"topic: $topic" in test_results[i][common.QUERIES][INDEX_OF_FIRST_BATCH][common.QUERY_LITERAL]
+                )
+                parameters = test_results[i][common.QUERIES][INDEX_OF_FIRST_BATCH][common.PARAMETERS_LITERAL]
                 # this is not a very sofisticated test, but checks if
                 # timestamp has some kind of value
                 assert parameters["timestamp"] > 1000000000000
@@ -183,8 +167,7 @@ def test_check_stream(
     common.start_stream(cursor, "test")
 
     for message in messages:
-        common.kafka_check_vertex_exists_with_topic_and_payload(
-            cursor, kafka_topics[0], message)
+        common.kafka_check_vertex_exists_with_topic_and_payload(cursor, kafka_topics[0], message)
 
 
 def test_show_streams(kafka_producer, kafka_topics, connection):
@@ -192,23 +175,15 @@ def test_show_streams(kafka_producer, kafka_topics, connection):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM default_values "
-        f"TOPICS {kafka_topics[0]} "
-        f"TRANSFORM kafka_transform.simple "
-        f"BOOTSTRAP_SERVERS 'localhost:9092'",
+        f"CREATE KAFKA STREAM default_values TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple BOOTSTRAP_SERVERS 'localhost:9092'",
     )
 
     consumer_group = "my_special_consumer_group"
-    batch_interval = 42
-    batch_size = 3
+    BATCH_INTERVAL = 42
+    BATCH_SIZE = 3
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM complex_values "
-        f"TOPICS {','.join(kafka_topics)} "
-        f"TRANSFORM kafka_transform.with_parameters "
-        f"CONSUMER_GROUP {consumer_group} "
-        f"BATCH_INTERVAL {batch_interval} "
-        f"BATCH_SIZE {batch_size} ",
+        f"CREATE KAFKA STREAM complex_values TOPICS {','.join(kafka_topics)} TRANSFORM kafka_transform.with_parameters CONSUMER_GROUP {consumer_group} BATCH_INTERVAL {BATCH_INTERVAL} BATCH_SIZE {BATCH_SIZE} ",
     )
 
     assert len(common.execute_and_fetch_all(cursor, "SHOW STREAMS")) == 2
@@ -216,13 +191,7 @@ def test_show_streams(kafka_producer, kafka_topics, connection):
     common.check_stream_info(
         cursor,
         "default_values",
-        ("default_values",
-         "kafka",
-         100,
-         1000,
-         "kafka_transform.simple",
-         None,
-         False),
+        ("default_values", "kafka", 100, 1000, "kafka_transform.simple", None, False),
     )
 
     common.check_stream_info(
@@ -231,8 +200,8 @@ def test_show_streams(kafka_producer, kafka_topics, connection):
         (
             "complex_values",
             "kafka",
-            batch_interval,
-            batch_size,
+            BATCH_INTERVAL,
+            BATCH_SIZE,
             "kafka_transform.with_parameters",
             None,
             False,
@@ -241,15 +210,12 @@ def test_show_streams(kafka_producer, kafka_topics, connection):
 
 
 @pytest.mark.parametrize("operation", ["START", "STOP"])
-def test_start_and_stop_during_check(
-        kafka_producer,
-        kafka_topics,
-        connection,
-        operation):
+def test_start_and_stop_during_check(kafka_producer, kafka_topics, connection, operation):
     assert len(kafka_topics) > 1
+    BATCH_SIZE = 1
 
     def stream_creator(stream_name):
-        return f"CREATE KAFKA STREAM {stream_name} TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple"
+        return f"CREATE KAFKA STREAM {stream_name} TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple BATCH_SIZE {BATCH_SIZE}"
 
     def message_sender(msg):
         kafka_producer.send(kafka_topics[0], msg).get(timeout=60)
@@ -259,7 +225,9 @@ def test_start_and_stop_during_check(
         connection,
         stream_creator,
         message_sender,
-        "Kafka consumer test_stream is already stopped")
+        "Kafka consumer test_stream is already stopped",
+        BATCH_SIZE,
+    )
 
 
 def test_check_already_started_stream(kafka_topics, connection):
@@ -268,9 +236,7 @@ def test_check_already_started_stream(kafka_topics, connection):
 
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM started_stream "
-        f"TOPICS {kafka_topics[0]} "
-        f"TRANSFORM kafka_transform.simple",
+        f"CREATE KAFKA STREAM started_stream TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.simple",
     )
     common.start_stream(cursor, "started_stream")
 
@@ -289,41 +255,29 @@ def test_restart_after_error(kafka_producer, kafka_topics, connection):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM test_stream "
-        f"TOPICS {kafka_topics[0]} "
-        f"TRANSFORM kafka_transform.query",
+        f"CREATE KAFKA STREAM test_stream TOPICS {kafka_topics[0]} TRANSFORM kafka_transform.query",
     )
 
     common.start_stream(cursor, "test_stream")
     time.sleep(1)
 
     kafka_producer.send(kafka_topics[0], common.SIMPLE_MSG).get(timeout=60)
-    assert common.timed_wait(
-        lambda: not common.get_is_running(
-            cursor, "test_stream"))
+    assert common.timed_wait(lambda: not common.get_is_running(cursor, "test_stream"))
 
     common.start_stream(cursor, "test_stream")
     time.sleep(1)
     kafka_producer.send(kafka_topics[0], b"CREATE (n:VERTEX { id : 42 })")
-    assert common.check_one_result_row(
-        cursor, "MATCH (n:VERTEX { id : 42 }) RETURN n")
+    assert common.check_one_result_row(cursor, "MATCH (n:VERTEX { id : 42 }) RETURN n")
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_PY)
-def test_bootstrap_server(
-        kafka_producer,
-        kafka_topics,
-        connection,
-        transformation):
+def test_bootstrap_server(kafka_producer, kafka_topics, connection, transformation):
     assert len(kafka_topics) > 0
     cursor = connection.cursor()
-    local = "localhost:9092"
+    LOCAL = "localhost:9092"
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM test "
-        f"TOPICS {','.join(kafka_topics)} "
-        f"TRANSFORM {transformation} "
-        f"BOOTSTRAP_SERVERS '{local}'",
+        f"CREATE KAFKA STREAM test TOPICS {','.join(kafka_topics)} TRANSFORM {transformation} BOOTSTRAP_SERVERS '{LOCAL}'",
     )
     common.start_stream(cursor, "test")
     time.sleep(5)
@@ -332,25 +286,17 @@ def test_bootstrap_server(
         kafka_producer.send(topic, common.SIMPLE_MSG).get(timeout=60)
 
     for topic in kafka_topics:
-        common.kafka_check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        common.kafka_check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_PY)
-def test_bootstrap_server_empty(
-        kafka_producer,
-        kafka_topics,
-        connection,
-        transformation):
+def test_bootstrap_server_empty(kafka_producer, kafka_topics, connection, transformation):
     assert len(kafka_topics) > 0
     cursor = connection.cursor()
     with pytest.raises(mgclient.DatabaseError):
         common.execute_and_fetch_all(
             cursor,
-            "CREATE KAFKA STREAM test "
-            f"TOPICS {','.join(kafka_topics)} "
-            f"TRANSFORM {transformation} "
-            "BOOTSTRAP_SERVERS ''",
+            f"CREATE KAFKA STREAM test TOPICS {','.join(kafka_topics)} TRANSFORM {transformation} BOOTSTRAP_SERVERS ''",
         )
 
 
@@ -360,10 +306,7 @@ def test_set_offset(kafka_producer, kafka_topics, connection, transformation):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE KAFKA STREAM test "
-        f"TOPICS {kafka_topics[0]} "
-        f"TRANSFORM {transformation} "
-        "BATCH_SIZE 1",
+        f"CREATE KAFKA STREAM test TOPICS {kafka_topics[0]} TRANSFORM {transformation} BATCH_SIZE 1",
     )
 
     messages = [f"{i} message" for i in range(1, 21)]
@@ -377,27 +320,18 @@ def test_set_offset(kafka_producer, kafka_topics, connection, transformation):
         else:
             assert common.check_one_result_row(
                 cursor,
-                (
-                    f"MATCH (n: MESSAGE {{payload: '{expected_msgs[-1]}'}})"
-                    "RETURN n"
-                ),
+                (f"MATCH (n: MESSAGE {{payload: '{expected_msgs[-1]}'}})" "RETURN n"),
             )
         common.stop_stream(cursor, "test")
-        res = common.execute_and_fetch_all(
-            cursor, "MATCH (n) RETURN n.payload"
-        )
+        res = common.execute_and_fetch_all(cursor, "MATCH (n) RETURN n.payload")
         return res
 
     def execute_set_offset_and_consume(id, expected_msgs):
-        common.execute_and_fetch_all(
-            cursor, f"CALL mg.kafka_set_stream_offset('test', {id})"
-        )
+        common.execute_and_fetch_all(cursor, f"CALL mg.kafka_set_stream_offset('test', {id})")
         return consume(expected_msgs)
 
     with pytest.raises(mgclient.DatabaseError):
-        res = common.execute_and_fetch_all(
-            cursor, "CALL mg.kafka_set_stream_offset('foo', 10)"
-        )
+        res = common.execute_and_fetch_all(cursor, "CALL mg.kafka_set_stream_offset('foo', 10)")
 
     def comparison_check(a, b):
         return a == str(b).strip("'(,)")
@@ -426,40 +360,60 @@ def test_set_offset(kafka_producer, kafka_topics, connection, transformation):
 
 def test_info_procedure(kafka_topics, connection):
     cursor = connection.cursor()
-    stream_name = 'test_stream'
-    configs = {"sasl.username": "michael.scott"}
-    local = "localhost:9092"
-    credentials = {"sasl.password": "S3cr3tP4ssw0rd"}
-    consumer_group = "ConsumerGr"
+    STREAM_NAME = "test_stream"
+    CONFIGS = {"sasl.username": "michael.scott"}
+    LOCAL = "localhost:9092"
+    CREDENTIALS = {"sasl.password": "S3cr3tP4ssw0rd"}
+    CONSUMER_GROUP = "ConsumerGr"
     common.execute_and_fetch_all(
         cursor,
-        f"CREATE KAFKA STREAM {stream_name} "
-        f"TOPICS {','.join(kafka_topics)} "
-        f"TRANSFORM pulsar_transform.simple "
-        f"CONSUMER_GROUP {consumer_group} "
-        f"BOOTSTRAP_SERVERS '{local}' "
-        f"CONFIGS {configs} "
-        f"CREDENTIALS {credentials}"
+        f"CREATE KAFKA STREAM {STREAM_NAME} TOPICS {','.join(kafka_topics)} TRANSFORM kafka_transform.simple CONSUMER_GROUP {CONSUMER_GROUP} BOOTSTRAP_SERVERS '{LOCAL}' CONFIGS {CONFIGS} CREDENTIALS {CREDENTIALS}",
     )
 
-    stream_info = common.execute_and_fetch_all(
-        cursor, f"CALL mg.kafka_stream_info('{stream_name}') YIELD *")
+    stream_info = common.execute_and_fetch_all(cursor, f"CALL mg.kafka_stream_info('{STREAM_NAME}') YIELD *")
 
-    reducted_credentials = {key: "<REDUCTED>" for
-                            key in credentials.keys()}
+    reducted_credentials = {key: "<REDUCTED>" for key in CREDENTIALS.keys()}
 
-    expected_stream_info = [
-        (local, configs, consumer_group, reducted_credentials, kafka_topics)]
+    expected_stream_info = [(LOCAL, CONFIGS, CONSUMER_GROUP, reducted_credentials, kafka_topics)]
     common.validate_info(stream_info, expected_stream_info)
 
-@pytest.mark.parametrize("transformation",TRANSFORMATIONS_TO_CHECK_C)
+
+@pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK_C)
 def test_load_c_transformations(connection, transformation):
     cursor = connection.cursor()
-    query = "CALL mg.transformations() YIELD * WITH name WHERE name STARTS WITH 'c_transformations." + transformation + "' RETURN name" 
-    result = common.execute_and_fetch_all(
-                 cursor, query)
+    query = f"CALL mg.transformations() YIELD * WITH name WHERE name STARTS WITH 'c_transformations.{transformation}' RETURN name"
+    result = common.execute_and_fetch_all(cursor, query)
     assert len(result) == 1
-    assert result[0][0] == "c_transformations." + transformation
-    
+    assert result[0][0] == f"c_transformations.{transformation}"
+
+
+def test_check_stream_same_number_of_queries_than_messages(kafka_producer, kafka_topics, connection):
+    assert len(kafka_topics) > 0
+
+    TRANSFORMATION = "common_transform.check_stream_no_filtering"
+
+    def stream_creator(stream_name, batch_size):
+        return f"CREATE KAFKA STREAM {stream_name} TOPICS {kafka_topics[0]} TRANSFORM {TRANSFORMATION} BATCH_INTERVAL 3000 BATCH_SIZE {batch_size}"
+
+    def message_sender(msg):
+        kafka_producer.send(kafka_topics[0], msg).get(timeout=60)
+
+    common.test_check_stream_same_number_of_queries_than_messages(connection, stream_creator, message_sender)
+
+
+def test_check_stream_different_number_of_queries_than_messages(kafka_producer, kafka_topics, connection):
+    assert len(kafka_topics) > 0
+
+    TRANSFORMATION = "common_transform.check_stream_with_filtering"
+
+    def stream_creator(stream_name, batch_size):
+        return f"CREATE KAFKA STREAM {stream_name} TOPICS {kafka_topics[0]} TRANSFORM {TRANSFORMATION} BATCH_INTERVAL 3000  BATCH_SIZE {batch_size}"
+
+    def message_sender(msg):
+        kafka_producer.send(kafka_topics[0], msg).get(timeout=60)
+
+    common.test_check_stream_different_number_of_queries_than_messages(connection, stream_creator, message_sender)
+
+
 if __name__ == "__main__":
     sys.exit(pytest.main([__file__, "-rA"]))

tests/e2e/streams/pulsar.yml

@@ -0,0 +1,8 @@
+version: '3.7'
+services:
+  pulsar:
+    image: 'apachepulsar/pulsar:latest'
+    ports:
+      - '6652:8080'
+      - '6650:6650'
+    entrypoint: ['bin/pulsar', 'standalone']

tests/e2e/streams/pulsar_streams_tests.py

@@ -18,17 +18,14 @@ import time
 from multiprocessing import Process, Value
 import common
 
-TRANSFORMATIONS_TO_CHECK = [
-    "pulsar_transform.simple",
-    "pulsar_transform.with_parameters"]
+TRANSFORMATIONS_TO_CHECK = ["pulsar_transform.simple", "pulsar_transform.with_parameters"]
 
 
 def check_vertex_exists_with_topic_and_payload(cursor, topic, payload_byte):
-    decoded_payload = payload_byte.decode('utf-8')
+    decoded_payload = payload_byte.decode("utf-8")
     common.check_vertex_exists_with_properties(
-        cursor, {
-            'topic': f'"{common.pulsar_default_namespace_topic(topic)}"',
-            'payload': f'"{decoded_payload}"'})
+        cursor, {"topic": f'"{common.pulsar_default_namespace_topic(topic)}"', "payload": f'"{decoded_payload}"'}
+    )
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK)
@@ -37,30 +34,23 @@ def test_simple(pulsar_client, pulsar_topics, connection, transformation):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM test "
-        f"TOPICS '{','.join(pulsar_topics)}' "
-        f"TRANSFORM {transformation}",
+        f"CREATE PULSAR STREAM test TOPICS '{','.join(pulsar_topics)}' TRANSFORM {transformation}",
     )
     common.start_stream(cursor, "test")
     time.sleep(5)
 
     for topic in pulsar_topics:
         producer = pulsar_client.create_producer(
-            common.pulsar_default_namespace_topic(topic),
-            send_timeout_millis=60000)
+            common.pulsar_default_namespace_topic(topic), send_timeout_millis=60000
+        )
         producer.send(common.SIMPLE_MSG)
 
     for topic in pulsar_topics:
-        check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK)
-def test_separate_consumers(
-        pulsar_client,
-        pulsar_topics,
-        connection,
-        transformation):
+def test_separate_consumers(pulsar_client, pulsar_topics, connection, transformation):
     assert len(pulsar_topics) > 0
     cursor = connection.cursor()
 
@@ -70,9 +60,7 @@ def test_separate_consumers(
         stream_names.append(stream_name)
         common.execute_and_fetch_all(
             cursor,
-            f"CREATE PULSAR STREAM {stream_name} "
-            f"TOPICS {topic} "
-            f"TRANSFORM {transformation}",
+            f"CREATE PULSAR STREAM {stream_name} TOPICS {topic} TRANSFORM {transformation}",
         )
 
     for stream_name in stream_names:
@@ -81,13 +69,11 @@ def test_separate_consumers(
     time.sleep(5)
 
     for topic in pulsar_topics:
-        producer = pulsar_client.create_producer(
-            topic, send_timeout_millis=60000)
+        producer = pulsar_client.create_producer(topic, send_timeout_millis=60000)
         producer.send(common.SIMPLE_MSG)
 
     for topic in pulsar_topics:
-        check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
 
 
 def test_start_from_latest_messages(pulsar_client, pulsar_topics, connection):
@@ -99,118 +85,112 @@ def test_start_from_latest_messages(pulsar_client, pulsar_topics, connection):
     assert len(pulsar_topics) > 0
     cursor = connection.cursor()
     common.execute_and_fetch_all(
-        cursor, "CREATE PULSAR STREAM test "
-        f"TOPICS {pulsar_topics[0]} "
-        "TRANSFORM pulsar_transform.simple", )
+        cursor,
+        f"CREATE PULSAR STREAM test TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple",
+    )
     common.start_stream(cursor, "test")
     time.sleep(1)
 
     def assert_message_not_consumed(message):
         vertices_with_msg = common.execute_and_fetch_all(
             cursor,
-            "MATCH (n: MESSAGE {" f"payload: '{message.decode('utf-8')}'" "}) RETURN n",
+            f"MATCH (n: MESSAGE {{payload: '{message.decode('utf-8')}'}}) RETURN n",
         )
 
         assert len(vertices_with_msg) == 0
 
     producer = pulsar_client.create_producer(
-        common.pulsar_default_namespace_topic(
-            pulsar_topics[0]), send_timeout_millis=60000)
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
     producer.send(common.SIMPLE_MSG)
 
-    check_vertex_exists_with_topic_and_payload(
-        cursor, pulsar_topics[0], common.SIMPLE_MSG)
+    check_vertex_exists_with_topic_and_payload(cursor, pulsar_topics[0], common.SIMPLE_MSG)
 
     common.stop_stream(cursor, "test")
 
-    next_message = b"NEXT"
-    producer.send(next_message)
+    NEXT_MESSAGE = b"NEXT"
+    producer.send(NEXT_MESSAGE)
 
-    assert_message_not_consumed(next_message)
+    assert_message_not_consumed(NEXT_MESSAGE)
 
     common.start_stream(cursor, "test")
-    check_vertex_exists_with_topic_and_payload(
-        cursor, pulsar_topics[0], next_message)
+    check_vertex_exists_with_topic_and_payload(cursor, pulsar_topics[0], NEXT_MESSAGE)
     common.stop_stream(cursor, "test")
 
     common.drop_stream(cursor, "test")
 
-    lost_message = b"LOST"
-    valid_messages = [b"second message", b"third message"]
+    LOST_MESSAGE = b"LOST"
+    VALID_MESSAGES = [b"second message", b"third message"]
 
-    producer.send(lost_message)
+    producer.send(LOST_MESSAGE)
 
-    assert_message_not_consumed(lost_message)
+    assert_message_not_consumed(LOST_MESSAGE)
 
     common.execute_and_fetch_all(
-        cursor, "CREATE PULSAR STREAM test "
-        f"TOPICS {pulsar_topics[0]} "
-        "TRANSFORM pulsar_transform.simple", )
+        cursor,
+        f"CREATE PULSAR STREAM test TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple",
+    )
 
-    for message in valid_messages:
+    for message in VALID_MESSAGES:
         producer.send(message)
         assert_message_not_consumed(message)
 
     common.start_stream(cursor, "test")
 
-    assert_message_not_consumed(lost_message)
+    assert_message_not_consumed(LOST_MESSAGE)
 
-    for message in valid_messages:
-        check_vertex_exists_with_topic_and_payload(
-            cursor, pulsar_topics[0], message)
+    for message in VALID_MESSAGES:
+        check_vertex_exists_with_topic_and_payload(cursor, pulsar_topics[0], message)
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK)
-def test_check_stream(
-        pulsar_client,
-        pulsar_topics,
-        connection,
-        transformation):
+def test_check_stream(pulsar_client, pulsar_topics, connection, transformation):
     assert len(pulsar_topics) > 0
+    BATCH_SIZE = 1
+    INDEX_Of_FIRST_BATCH = 0
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM test "
-        f"TOPICS {pulsar_topics[0]} "
-        f"TRANSFORM {transformation} "
-        "BATCH_SIZE 1",
+        f"CREATE PULSAR STREAM test TOPICS {pulsar_topics[0]} TRANSFORM {transformation} BATCH_SIZE {BATCH_SIZE}",
     )
     common.start_stream(cursor, "test")
     time.sleep(1)
 
     producer = pulsar_client.create_producer(
-        common.pulsar_default_namespace_topic(
-            pulsar_topics[0]), send_timeout_millis=60000)
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
     producer.send(common.SIMPLE_MSG)
-    check_vertex_exists_with_topic_and_payload(
-        cursor, pulsar_topics[0], common.SIMPLE_MSG)
+    check_vertex_exists_with_topic_and_payload(cursor, pulsar_topics[0], common.SIMPLE_MSG)
     common.stop_stream(cursor, "test")
 
-    messages = [b"first message", b"second message", b"third message"]
-    for message in messages:
+    MESSAGES = [b"first message", b"second message", b"third message"]
+    for message in MESSAGES:
         producer.send(message)
 
     def check_check_stream(batch_limit):
-        assert (
-            transformation == "pulsar_transform.simple"
-            or transformation == "pulsar_transform.with_parameters"
-        )
-        test_results = common.execute_and_fetch_all(
-            cursor, f"CHECK STREAM test BATCH_LIMIT {batch_limit}"
-        )
+        assert transformation == "pulsar_transform.simple" or transformation == "pulsar_transform.with_parameters"
+        test_results = common.execute_and_fetch_all(cursor, f"CHECK STREAM test BATCH_LIMIT {batch_limit}")
         assert len(test_results) == batch_limit
 
         for i in range(batch_limit):
-            message_as_str = messages[i].decode("utf-8")
+            message_as_str = MESSAGES[i].decode("utf-8")
+            assert (
+                BATCH_SIZE == 1
+            )  # If batch size != 1, then the usage of INDEX_Of_FIRST_BATCH must change: the result will have a list of queries (pair<parameters,query>)
+
             if transformation == "pulsar_transform.simple":
-                assert f"payload: '{message_as_str}'" in test_results[i][common.QUERY]
-                assert test_results[i][common.PARAMS] is None
+                assert (
+                    f"payload: '{message_as_str}'"
+                    in test_results[i][common.QUERIES][INDEX_Of_FIRST_BATCH][common.QUERY_LITERAL]
+                )
+                assert test_results[i][common.QUERIES][INDEX_Of_FIRST_BATCH][common.PARAMETERS_LITERAL] is None
             else:
-                assert f"payload: $payload" in test_results[i][
-                    common.QUERY] and f"topic: $topic" in test_results[i][common.QUERY]
-                parameters = test_results[i][common.PARAMS]
-                assert parameters["topic"] == common.pulsar_default_namespace_topic(
-                    pulsar_topics[0])
+                assert (
+                    f"payload: $payload" in test_results[i][common.QUERIES][INDEX_Of_FIRST_BATCH][common.QUERY_LITERAL]
+                    and f"topic: $topic" in test_results[i][common.QUERIES][INDEX_Of_FIRST_BATCH][common.QUERY_LITERAL]
+                )
+                parameters = test_results[i][common.QUERIES][INDEX_Of_FIRST_BATCH][common.PARAMETERS_LITERAL]
+                assert parameters["topic"] == common.pulsar_default_namespace_topic(pulsar_topics[0])
                 assert parameters["payload"] == message_as_str
 
     check_check_stream(1)
@@ -218,45 +198,37 @@ def test_check_stream(
     check_check_stream(3)
     common.start_stream(cursor, "test")
 
-    for message in messages:
-        check_vertex_exists_with_topic_and_payload(
-            cursor, pulsar_topics[0], message)
+    for message in MESSAGES:
+        check_vertex_exists_with_topic_and_payload(cursor, pulsar_topics[0], message)
 
 
 def test_info_procedure(pulsar_client, pulsar_topics, connection):
     cursor = connection.cursor()
-    stream_name = 'test_stream'
+    STREAM_NAME = "test_stream"
     common.execute_and_fetch_all(
         cursor,
-        f"CREATE PULSAR STREAM {stream_name} "
-        f"TOPICS {','.join(pulsar_topics)} "
-        f"TRANSFORM pulsar_transform.simple ",
+        f"CREATE PULSAR STREAM {STREAM_NAME} TOPICS {','.join(pulsar_topics)} TRANSFORM pulsar_transform.simple ",
     )
 
-    stream_info = common.execute_and_fetch_all(cursor, f"CALL mg.pulsar_stream_info('{stream_name}') YIELD *")
+    stream_info = common.execute_and_fetch_all(cursor, f"CALL mg.pulsar_stream_info('{STREAM_NAME}') YIELD *")
 
     expected_stream_info = [(common.PULSAR_SERVICE_URL, pulsar_topics)]
     common.validate_info(stream_info, expected_stream_info)
 
+
 def test_show_streams(pulsar_client, pulsar_topics, connection):
     assert len(pulsar_topics) > 1
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM default_values "
-        f"TOPICS {pulsar_topics[0]} "
-        f"TRANSFORM pulsar_transform.simple ",
+        f"CREATE PULSAR STREAM default_values TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple ",
     )
 
-    batch_interval = 42
-    batch_size = 3
+    BATCH_INTERVAL = 42
+    BATCH_SIZE = 3
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM complex_values "
-        f"TOPICS {','.join(pulsar_topics)} "
-        f"TRANSFORM pulsar_transform.with_parameters "
-        f"BATCH_INTERVAL {batch_interval} "
-        f"BATCH_SIZE {batch_size} ",
+        f"CREATE PULSAR STREAM complex_values TOPICS {','.join(pulsar_topics)} TRANSFORM pulsar_transform.with_parameters BATCH_INTERVAL {BATCH_INTERVAL} BATCH_SIZE {BATCH_SIZE} ",
     )
 
     assert len(common.execute_and_fetch_all(cursor, "SHOW STREAMS")) == 2
@@ -264,13 +236,7 @@ def test_show_streams(pulsar_client, pulsar_topics, connection):
     common.check_stream_info(
         cursor,
         "default_values",
-        ("default_values",
-         "pulsar",
-         100,
-         1000,
-         "pulsar_transform.simple",
-         None,
-         False),
+        ("default_values", "pulsar", 100, 1000, "pulsar_transform.simple", None, False),
     )
 
     common.check_stream_info(
@@ -279,8 +245,8 @@ def test_show_streams(pulsar_client, pulsar_topics, connection):
         (
             "complex_values",
             "pulsar",
-            batch_interval,
-            batch_size,
+            BATCH_INTERVAL,
+            BATCH_SIZE,
             "pulsar_transform.with_parameters",
             None,
             False,
@@ -289,19 +255,16 @@ def test_show_streams(pulsar_client, pulsar_topics, connection):
 
 
 @pytest.mark.parametrize("operation", ["START", "STOP"])
-def test_start_and_stop_during_check(
-        pulsar_client,
-        pulsar_topics,
-        connection,
-        operation):
+def test_start_and_stop_during_check(pulsar_client, pulsar_topics, connection, operation):
     assert len(pulsar_topics) > 1
+    BATCH_SIZE = 1
 
     def stream_creator(stream_name):
-        return f"CREATE PULSAR STREAM {stream_name} TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple"
+        return f"CREATE PULSAR STREAM {stream_name} TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple BATCH_SIZE {BATCH_SIZE}"
 
     producer = pulsar_client.create_producer(
-        common.pulsar_default_namespace_topic(
-            pulsar_topics[0]), send_timeout_millis=60000)
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
 
     def message_sender(msg):
         producer.send(msg)
@@ -311,7 +274,9 @@ def test_start_and_stop_during_check(
         connection,
         stream_creator,
         message_sender,
-        "Pulsar consumer test_stream is already stopped")
+        "Pulsar consumer test_stream is already stopped",
+        BATCH_SIZE,
+    )
 
 
 def test_check_already_started_stream(pulsar_topics, connection):
@@ -320,9 +285,7 @@ def test_check_already_started_stream(pulsar_topics, connection):
 
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM started_stream "
-        f"TOPICS {pulsar_topics[0]} "
-        f"TRANSFORM pulsar_transform.simple",
+        f"CREATE PULSAR STREAM started_stream TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple",
     )
     common.start_stream(cursor, "started_stream")
 
@@ -333,6 +296,7 @@ def test_check_already_started_stream(pulsar_topics, connection):
 def test_start_checked_stream_after_timeout(pulsar_topics, connection):
     def stream_creator(stream_name):
         return f"CREATE PULSAR STREAM {stream_name} TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.simple"
+
     common.test_start_checked_stream_after_timeout(connection, stream_creator)
 
 
@@ -340,53 +304,80 @@ def test_restart_after_error(pulsar_client, pulsar_topics, connection):
     cursor = connection.cursor()
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM test_stream "
-        f"TOPICS {pulsar_topics[0]} "
-        f"TRANSFORM pulsar_transform.query",
+        f"CREATE PULSAR STREAM test_stream TOPICS {pulsar_topics[0]} TRANSFORM pulsar_transform.query",
     )
 
     common.start_stream(cursor, "test_stream")
     time.sleep(1)
 
     producer = pulsar_client.create_producer(
-        common.pulsar_default_namespace_topic(
-            pulsar_topics[0]), send_timeout_millis=60000)
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
     producer.send(common.SIMPLE_MSG)
-    assert common.timed_wait(
-        lambda: not common.get_is_running(
-            cursor, "test_stream"))
+    assert common.timed_wait(lambda: not common.get_is_running(cursor, "test_stream"))
 
     common.start_stream(cursor, "test_stream")
     time.sleep(1)
     producer.send(b"CREATE (n:VERTEX { id : 42 })")
-    assert common.check_one_result_row(
-        cursor, "MATCH (n:VERTEX { id : 42 }) RETURN n")
+    assert common.check_one_result_row(cursor, "MATCH (n:VERTEX { id : 42 }) RETURN n")
 
 
 @pytest.mark.parametrize("transformation", TRANSFORMATIONS_TO_CHECK)
 def test_service_url(pulsar_client, pulsar_topics, connection, transformation):
     assert len(pulsar_topics) > 0
     cursor = connection.cursor()
-    local = "pulsar://127.0.0.1:6650"
+    LOCAL = "pulsar://127.0.0.1:6650"
     common.execute_and_fetch_all(
         cursor,
-        "CREATE PULSAR STREAM test "
-        f"TOPICS {','.join(pulsar_topics)} "
-        f"TRANSFORM {transformation} "
-        f"SERVICE_URL '{local}'",
+        f"CREATE PULSAR STREAM test TOPICS {','.join(pulsar_topics)} TRANSFORM {transformation} SERVICE_URL '{LOCAL}'",
     )
     common.start_stream(cursor, "test")
     time.sleep(5)
 
     for topic in pulsar_topics:
         producer = pulsar_client.create_producer(
-            common.pulsar_default_namespace_topic(topic),
-            send_timeout_millis=60000)
+            common.pulsar_default_namespace_topic(topic), send_timeout_millis=60000
+        )
         producer.send(common.SIMPLE_MSG)
 
     for topic in pulsar_topics:
-        check_vertex_exists_with_topic_and_payload(
-            cursor, topic, common.SIMPLE_MSG)
+        check_vertex_exists_with_topic_and_payload(cursor, topic, common.SIMPLE_MSG)
+
+
+def test_check_stream_same_number_of_queries_than_messages(pulsar_client, pulsar_topics, connection):
+    assert len(pulsar_topics) > 0
+
+    TRANSFORMATION = "common_transform.check_stream_no_filtering"
+
+    def stream_creator(stream_name, batch_size):
+        return f"CREATE PULSAR STREAM {stream_name} TOPICS {pulsar_topics[0]} TRANSFORM {TRANSFORMATION} BATCH_INTERVAL 3000 BATCH_SIZE  {batch_size} "
+
+    producer = pulsar_client.create_producer(
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
+
+    def message_sender(msg):
+        producer.send(msg)
+
+    common.test_check_stream_same_number_of_queries_than_messages(connection, stream_creator, message_sender)
+
+
+def test_check_stream_different_number_of_queries_than_messages(pulsar_client, pulsar_topics, connection):
+    assert len(pulsar_topics) > 0
+
+    TRANSFORMATION = "common_transform.check_stream_with_filtering"
+
+    def stream_creator(stream_name, batch_size):
+        return f"CREATE PULSAR STREAM {stream_name} TOPICS {pulsar_topics[0]} TRANSFORM {TRANSFORMATION} BATCH_INTERVAL 3000 BATCH_SIZE  {batch_size} "
+
+    producer = pulsar_client.create_producer(
+        common.pulsar_default_namespace_topic(pulsar_topics[0]), send_timeout_millis=60000
+    )
+
+    def message_sender(msg):
+        producer.send(msg)
+
+    common.test_check_stream_different_number_of_queries_than_messages(connection, stream_creator, message_sender)
 
 
 if __name__ == "__main__":

tests/e2e/streams/redpanda.yml

@@ -0,0 +1,23 @@
+version: '3.7'
+services:
+  redpanda:
+    command:
+    - redpanda
+    - start
+    - --smp
+    - '1'
+    - --reserve-memory
+    - 0M
+    - --overprovisioned
+    - --node-id
+    - '0'
+    - --kafka-addr
+    - PLAINTEXT://0.0.0.0:29092,OUTSIDE://0.0.0.0:9092
+    - --advertise-kafka-addr
+    - PLAINTEXT://redpanda:29092,OUTSIDE://localhost:9092
+    # NOTE: Please use the latest version here!
+    image: docker.vectorized.io/vectorized/redpanda:latest
+    container_name: redpanda-1
+    ports:
+    - 9092:9092
+    - 29092:29092

tests/e2e/streams/transformations/CMakeLists.txt

@@ -1,3 +1,4 @@
 copy_streams_e2e_python_files(kafka_transform.py)
 copy_streams_e2e_python_files(pulsar_transform.py)
+copy_streams_e2e_python_files(common_transform.py)
 add_query_module(c_transformations c_transformations.cpp)

tests/e2e/streams/transformations/c_transformations.cpp

@@ -14,7 +14,7 @@
 extern "C" int mgp_init_module(mgp_module *module, mgp_memory *memory) {
   static const auto no_op_cb = [](mgp_messages *msg, mgp_graph *graph, mgp_result *result, mgp_memory *memory) {};
 
-  if (MGP_ERROR_NO_ERROR != mgp_module_add_transformation(module, "empty_transformation", no_op_cb)) {
+  if (mgp_error::MGP_ERROR_NO_ERROR != mgp_module_add_transformation(module, "empty_transformation", no_op_cb)) {
     return 1;
   }
 

tests/e2e/streams/transformations/common_transform.py

@@ -0,0 +1,57 @@
+# Copyright 2021 Memgraph Ltd.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
+# License, and you may not use this file except in compliance with the Business Source License.
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0, included in the file
+# licenses/APL.txt.
+
+import mgp
+
+
+@mgp.transformation
+def check_stream_no_filtering(
+    context: mgp.TransCtx, messages: mgp.Messages
+) -> mgp.Record(query=str, parameters=mgp.Map):
+
+    result_queries = []
+
+    for i in range(0, messages.total_messages()):
+        message = messages.message_at(i)
+        payload_as_str = message.payload().decode("utf-8")
+        result_queries.append(
+            mgp.Record(query=f"Message: {payload_as_str}", parameters={"value": f"Parameter: {payload_as_str}"})
+        )
+
+    return result_queries
+
+
+@mgp.transformation
+def check_stream_with_filtering(
+    context: mgp.TransCtx, messages: mgp.Messages
+) -> mgp.Record(query=str, parameters=mgp.Map):
+
+    result_queries = []
+
+    for i in range(0, messages.total_messages()):
+        message = messages.message_at(i)
+        payload_as_str = message.payload().decode("utf-8")
+
+        if "a" in payload_as_str:
+            continue
+
+        result_queries.append(
+            mgp.Record(query=f"Message: {payload_as_str}", parameters={"value": f"Parameter: {payload_as_str}"})
+        )
+
+        if "b" in payload_as_str:
+            result_queries.append(
+                mgp.Record(
+                    query=f"Message: extra_{payload_as_str}", parameters={"value": f"Parameter: extra_{payload_as_str}"}
+                )
+            )
+
+    return result_queries

tests/e2e/streams/transformations/kafka_transform.py

@@ -13,9 +13,7 @@ import mgp
 
 
 @mgp.transformation
-def simple(
-    context: mgp.TransCtx, messages: mgp.Messages
-) -> mgp.Record(query=str, parameters=mgp.Map):
+def simple(context: mgp.TransCtx, messages: mgp.Messages) -> mgp.Record(query=str, parameters=mgp.Map):
 
     result_queries = []
 
@@ -32,15 +30,15 @@ def simple(
                     offset: '{message.offset()}',
                     topic: '{message.topic_name()}'
                 }})""",
-                parameters=None))
+                parameters=None,
+            )
+        )
 
     return result_queries
 
 
 @mgp.transformation
-def with_parameters(
-    context: mgp.TransCtx, messages: mgp.Messages
-) -> mgp.Record(query=str, parameters=mgp.Map):
+def with_parameters(context: mgp.TransCtx, messages: mgp.Messages) -> mgp.Record(query=str, parameters=mgp.Map):
 
     result_queries = []
 
@@ -61,7 +59,10 @@ def with_parameters(
                     "timestamp": message.timestamp(),
                     "payload": payload_as_str,
                     "offset": message.offset(),
-                    "topic": message.topic_name()}))
+                    "topic": message.topic_name(),
+                },
+            )
+        )
 
     return result_queries
 
@@ -76,8 +77,6 @@ def query(
         message = messages.message_at(i)
         assert message.source_type() == mgp.SOURCE_TYPE_KAFKA
         payload_as_str = message.payload().decode("utf-8")
-        result_queries.append(
-            mgp.Record(query=payload_as_str, parameters=None)
-        )
+        result_queries.append(mgp.Record(query=payload_as_str, parameters=None))
 
     return result_queries

tests/e2e/streams/transformations/pulsar_transform.py

@@ -13,9 +13,7 @@ import mgp
 
 
 @mgp.transformation
-def simple(context: mgp.TransCtx,
-           messages: mgp.Messages
-           ) -> mgp.Record(query=str, parameters=mgp.Map):
+def simple(context: mgp.TransCtx, messages: mgp.Messages) -> mgp.Record(query=str, parameters=mgp.Map):
 
     result_queries = []
 
@@ -30,15 +28,15 @@ def simple(context: mgp.TransCtx,
                     payload: '{payload_as_str}',
                     topic: '{message.topic_name()}'
                 }})""",
-                parameters=None))
+                parameters=None,
+            )
+        )
 
     return result_queries
 
 
 @mgp.transformation
-def with_parameters(context: mgp.TransCtx,
-                    messages: mgp.Messages
-                    ) -> mgp.Record(query=str, parameters=mgp.Map):
+def with_parameters(context: mgp.TransCtx, messages: mgp.Messages) -> mgp.Record(query=str, parameters=mgp.Map):
 
     result_queries = []
 
@@ -53,23 +51,21 @@ def with_parameters(context: mgp.TransCtx,
                     payload: $payload,
                     topic: $topic
                 })""",
-                parameters={
-                    "payload": payload_as_str,
-                    "topic": message.topic_name()}))
+                parameters={"payload": payload_as_str, "topic": message.topic_name()},
+            )
+        )
 
     return result_queries
 
 
 @mgp.transformation
-def query(messages: mgp.Messages
-          ) -> mgp.Record(query=str, parameters=mgp.Nullable[mgp.Map]):
+def query(messages: mgp.Messages) -> mgp.Record(query=str, parameters=mgp.Nullable[mgp.Map]):
     result_queries = []
 
     for i in range(0, messages.total_messages()):
         message = messages.message_at(i)
         assert message.source_type() == mgp.SOURCE_TYPE_PULSAR
         payload_as_str = message.payload().decode("utf-8")
-        result_queries.append(mgp.Record(
-            query=payload_as_str, parameters=None))
+        result_queries.append(mgp.Record(query=payload_as_str, parameters=None))
 
     return result_queries

tests/e2e/websocket/CMakeLists.txt

@@ -1,10 +0,0 @@
-find_package(gflags REQUIRED)
-find_package(Boost REQUIRED)
-
-add_executable(memgraph__e2e__websocket websocket.cpp)
-target_link_libraries(memgraph__e2e__websocket mgclient mg-utils json gflags Boost::headers)
-
-add_executable(memgraph__e2e__websocket_ssl websocket_ssl.cpp)
-target_link_libraries(memgraph__e2e__websocket_ssl mgclient mg-utils json gflags Boost::headers)
-file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/memgraph-selfsigned.crt DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
-file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/memgraph-selfsigned.key DESTINATION ${CMAKE_CURRENT_BINARY_DIR})

tests/unit/mgp_trans_c_api.cpp

@@ -23,13 +23,13 @@ TEST(MgpTransTest, TestMgpTransApi) {
   // for different string cases as these are all handled by
   // IsValidIdentifier().
   // Maybe add a mock instead and expect IsValidIdentifier() to be called once?
-  EXPECT_EQ(mgp_module_add_transformation(&module, "dash-dash", no_op_cb), MGP_ERROR_INVALID_ARGUMENT);
+  EXPECT_EQ(mgp_module_add_transformation(&module, "dash-dash", no_op_cb), mgp_error::MGP_ERROR_INVALID_ARGUMENT);
   EXPECT_TRUE(module.transformations.empty());
 
-  EXPECT_EQ(mgp_module_add_transformation(&module, "transform", no_op_cb), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_transformation(&module, "transform", no_op_cb), mgp_error::MGP_ERROR_NO_ERROR);
   EXPECT_NE(module.transformations.find("transform"), module.transformations.end());
 
   // Try to register a transformation twice
-  EXPECT_EQ(mgp_module_add_transformation(&module, "transform", no_op_cb), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_module_add_transformation(&module, "transform", no_op_cb), mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_TRUE(module.transformations.size() == 1);
 }

tests/unit/query_function_mgp_module.cpp

@@ -25,25 +25,26 @@ TEST(Module, InvalidFunctionRegistration) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   mgp_func *func{nullptr};
   // Other test cases are covered within the procedure API. This is only sanity check
-  EXPECT_EQ(mgp_module_add_function(&module, "dashes-not-supported", DummyCallback, &func), MGP_ERROR_INVALID_ARGUMENT);
+  EXPECT_EQ(mgp_module_add_function(&module, "dashes-not-supported", DummyCallback, &func),
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
 }
 
 TEST(Module, RegisterSameFunctionMultipleTimes) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   mgp_func *func{nullptr};
   EXPECT_EQ(module.functions.find("same_name"), module.functions.end());
-  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), mgp_error::MGP_ERROR_NO_ERROR);
   EXPECT_NE(module.functions.find("same_name"), module.functions.end());
-  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), MGP_ERROR_LOGIC_ERROR);
-  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), mgp_error::MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "same_name", DummyCallback, &func), mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_NE(module.functions.find("same_name"), module.functions.end());
 }
 
 TEST(Module, CaseSensitiveFunctionNames) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   mgp_func *func{nullptr};
-  EXPECT_EQ(mgp_module_add_function(&module, "not_same", DummyCallback, &func), MGP_ERROR_NO_ERROR);
-  EXPECT_EQ(mgp_module_add_function(&module, "NoT_saME", DummyCallback, &func), MGP_ERROR_NO_ERROR);
-  EXPECT_EQ(mgp_module_add_function(&module, "NOT_SAME", DummyCallback, &func), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "not_same", DummyCallback, &func), mgp_error::MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "NoT_saME", DummyCallback, &func), mgp_error::MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_function(&module, "NOT_SAME", DummyCallback, &func), mgp_error::MGP_ERROR_NO_ERROR);
   EXPECT_EQ(module.functions.size(), 3U);
 }

tests/unit/query_procedure_mgp_module.cpp

@@ -25,30 +25,34 @@ TEST(Module, InvalidProcedureRegistration) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   mgp_proc *proc{nullptr};
   EXPECT_EQ(mgp_module_add_read_procedure(&module, "dashes-not-supported", DummyCallback, &proc),
-            MGP_ERROR_INVALID_ARGUMENT);
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
   // as u8string this is u8"unicode\u22c6not\u2014supported"
   EXPECT_EQ(mgp_module_add_read_procedure(&module, "unicode\xE2\x8B\x86not\xE2\x80\x94supported", DummyCallback, &proc),
-            MGP_ERROR_INVALID_ARGUMENT);
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
   // as u8string this is u8"`backticks⋆\u22c6won't-save\u2014you`"
   EXPECT_EQ(
       mgp_module_add_read_procedure(&module, "`backticks⋆\xE2\x8B\x86won't-save\xE2\x80\x94you`", DummyCallback, &proc),
-      MGP_ERROR_INVALID_ARGUMENT);
+      mgp_error::MGP_ERROR_INVALID_ARGUMENT);
   EXPECT_EQ(mgp_module_add_read_procedure(&module, "42_name_must_not_start_with_number", DummyCallback, &proc),
-            MGP_ERROR_INVALID_ARGUMENT);
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "div/", DummyCallback, &proc), MGP_ERROR_INVALID_ARGUMENT);
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "mul*", DummyCallback, &proc), MGP_ERROR_INVALID_ARGUMENT);
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "div/", DummyCallback, &proc),
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "mul*", DummyCallback, &proc),
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
   EXPECT_EQ(mgp_module_add_read_procedure(&module, "question_mark_is_not_valid?", DummyCallback, &proc),
-            MGP_ERROR_INVALID_ARGUMENT);
+            mgp_error::MGP_ERROR_INVALID_ARGUMENT);
 }
 
 TEST(Module, RegisteringTheSameProcedureMultipleTimes) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   mgp_proc *proc{nullptr};
   EXPECT_EQ(module.procedures.find("same_name"), module.procedures.end());
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc), mgp_error::MGP_ERROR_NO_ERROR);
   EXPECT_NE(module.procedures.find("same_name"), module.procedures.end());
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc), MGP_ERROR_LOGIC_ERROR);
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc),
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "same_name", DummyCallback, &proc),
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_NE(module.procedures.find("same_name"), module.procedures.end());
 }
 
@@ -56,9 +60,9 @@ TEST(Module, CaseSensitiveProcedureNames) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   EXPECT_TRUE(module.procedures.empty());
   mgp_proc *proc{nullptr};
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "not_same", DummyCallback, &proc), MGP_ERROR_NO_ERROR);
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "NoT_saME", DummyCallback, &proc), MGP_ERROR_NO_ERROR);
-  EXPECT_EQ(mgp_module_add_read_procedure(&module, "NOT_SAME", DummyCallback, &proc), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "not_same", DummyCallback, &proc), mgp_error::MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "NoT_saME", DummyCallback, &proc), mgp_error::MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_module_add_read_procedure(&module, "NOT_SAME", DummyCallback, &proc), mgp_error::MGP_ERROR_NO_ERROR);
   EXPECT_EQ(module.procedures.size(), 3U);
 }
 
@@ -73,37 +77,41 @@ TEST(Module, ProcedureSignature) {
   mgp_module module(memgraph::utils::NewDeleteResource());
   auto *proc = EXPECT_MGP_NO_ERROR(mgp_proc *, mgp_module_add_read_procedure, &module, "proc", &DummyCallback);
   CheckSignature(proc, "proc() :: ()");
-  EXPECT_EQ(mgp_proc_add_arg(proc, "arg1", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_number)), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_proc_add_arg(proc, "arg1", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_number)),
+            mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc, "proc(arg1 :: NUMBER) :: ()");
   EXPECT_EQ(mgp_proc_add_opt_arg(
                 proc, "opt1",
                 EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_nullable, EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)),
                 test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_null, &memory)).get()),
-            MGP_ERROR_NO_ERROR);
+            mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc, "proc(arg1 :: NUMBER, opt1 = Null :: ANY?) :: ()");
   EXPECT_EQ(
       mgp_proc_add_result(
           proc, "res1", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_list, EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_int))),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc, "proc(arg1 :: NUMBER, opt1 = Null :: ANY?) :: (res1 :: LIST OF INTEGER)");
-  EXPECT_EQ(mgp_proc_add_arg(proc, "arg2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_number)), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_proc_add_arg(proc, "arg2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_number)),
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
   CheckSignature(proc, "proc(arg1 :: NUMBER, opt1 = Null :: ANY?) :: (res1 :: LIST OF INTEGER)");
-  EXPECT_EQ(mgp_proc_add_arg(proc, "arg2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_map)), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_proc_add_arg(proc, "arg2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_map)),
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
   CheckSignature(proc, "proc(arg1 :: NUMBER, opt1 = Null :: ANY?) :: (res1 :: LIST OF INTEGER)");
   EXPECT_EQ(mgp_proc_add_deprecated_result(proc, "res2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_string)),
-            MGP_ERROR_NO_ERROR);
+            mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc,
                  "proc(arg1 :: NUMBER, opt1 = Null :: ANY?) :: "
                  "(res1 :: LIST OF INTEGER, DEPRECATED res2 :: STRING)");
-  EXPECT_EQ(mgp_proc_add_result(proc, "res2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_proc_add_result(proc, "res2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)),
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_EQ(mgp_proc_add_deprecated_result(proc, "res1", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)),
-            MGP_ERROR_LOGIC_ERROR);
+            mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_EQ(
       mgp_proc_add_opt_arg(proc, "opt2", EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_string),
                            test_utils::CreateValueOwningPtr(
                                EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_string, "string=\"value\"", &memory))
                                .get()),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc,
                  "proc(arg1 :: NUMBER, opt1 = Null :: ANY?, "
                  "opt2 = \"string=\\\"value\\\"\" :: STRING) :: "
@@ -118,7 +126,7 @@ TEST(Module, ProcedureSignatureOnlyOptArg) {
                 proc, "opt1",
                 EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_nullable, EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)),
                 test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_null, &memory)).get()),
-            MGP_ERROR_NO_ERROR);
+            mgp_error::MGP_ERROR_NO_ERROR);
   CheckSignature(proc, "proc(opt1 = Null :: ANY?) :: ()");
 }
 

tests/unit/query_procedure_mgp_type.cpp

@@ -207,7 +207,7 @@ TEST(CypherType, MapSatisfiesType) {
       mgp_map_insert(
           map, "key",
           test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_int, 42, &memory)).get()),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   auto *mgp_map_v = EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_map, map);
   const memgraph::query::TypedValue tv_map(
       std::map<std::string, memgraph::query::TypedValue>{{"key", memgraph::query::TypedValue(42)}});
@@ -287,7 +287,7 @@ TEST(CypherType, PathSatisfiesType) {
   ASSERT_TRUE(path);
   alloc.delete_object(mgp_vertex_v);
   auto mgp_edge_v = alloc.new_object<mgp_edge>(edge, &graph);
-  ASSERT_EQ(mgp_path_expand(path, mgp_edge_v), MGP_ERROR_NO_ERROR);
+  ASSERT_EQ(mgp_path_expand(path, mgp_edge_v), mgp_error::MGP_ERROR_NO_ERROR);
   alloc.delete_object(mgp_edge_v);
   auto *mgp_path_v = EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_path, path);
   const memgraph::query::TypedValue tv_path(memgraph::query::Path(v1, edge, v2));
@@ -343,7 +343,7 @@ TEST(CypherType, ListOfIntSatisfiesType) {
         mgp_list_append(
             list,
             test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_int, i, &memory)).get()),
-        MGP_ERROR_NO_ERROR);
+        mgp_error::MGP_ERROR_NO_ERROR);
     tv_list.ValueList().emplace_back(i);
     auto valid_types =
         MakeListTypes({EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any), EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_int),
@@ -371,14 +371,14 @@ TEST(CypherType, ListOfIntAndBoolSatisfiesType) {
       mgp_list_append(
           list,
           test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_int, 42, &memory)).get()),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   tv_list.ValueList().emplace_back(42);
   // Add a boolean
   ASSERT_EQ(
       mgp_list_append(
           list,
           test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_bool, 1, &memory)).get()),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   tv_list.ValueList().emplace_back(true);
   auto valid_types = MakeListTypes({EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any)});
   valid_types.push_back(EXPECT_MGP_NO_ERROR(mgp_type *, mgp_type_any));
@@ -402,7 +402,7 @@ TEST(CypherType, ListOfNullSatisfiesType) {
   ASSERT_EQ(
       mgp_list_append(
           list, test_utils::CreateValueOwningPtr(EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_null, &memory)).get()),
-      MGP_ERROR_NO_ERROR);
+      mgp_error::MGP_ERROR_NO_ERROR);
   tv_list.ValueList().emplace_back();
   // List with Null satisfies all nullable list element types
   std::vector<mgp_type *> primitive_types{

tests/unit/query_procedure_py_module.cpp

@@ -30,13 +30,13 @@ TEST(PyModule, MgpValueToPyObject) {
                              EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_double, 0.1, &memory),
                              EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_string, "some text", &memory)};
     for (auto *val : primitive_values) {
-      EXPECT_EQ(mgp_list_append(list, val), MGP_ERROR_NO_ERROR);
+      EXPECT_EQ(mgp_list_append(list, val), mgp_error::MGP_ERROR_NO_ERROR);
       mgp_value_destroy(val);
     }
   }
   auto *list_val = EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_list, list);
   auto *map = EXPECT_MGP_NO_ERROR(mgp_map *, mgp_map_make_empty, &memory);
-  EXPECT_EQ(mgp_map_insert(map, "list", list_val), MGP_ERROR_NO_ERROR);
+  EXPECT_EQ(mgp_map_insert(map, "list", list_val), mgp_error::MGP_ERROR_NO_ERROR);
   mgp_value_destroy(list_val);
   auto *map_val = EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_map, map);
   auto gil = memgraph::py::EnsureGIL();
@@ -218,7 +218,7 @@ TEST(PyModule, PyPath) {
   ASSERT_TRUE(edges_it);
   for (auto *edge = EXPECT_MGP_NO_ERROR(mgp_edge *, mgp_edges_iterator_get, edges_it); edge != nullptr;
        edge = EXPECT_MGP_NO_ERROR(mgp_edge *, mgp_edges_iterator_next, edges_it)) {
-    ASSERT_EQ(mgp_path_expand(path, edge), MGP_ERROR_NO_ERROR);
+    ASSERT_EQ(mgp_path_expand(path, edge), mgp_error::MGP_ERROR_NO_ERROR);
   }
   ASSERT_EQ(EXPECT_MGP_NO_ERROR(size_t, mgp_path_size, path), 1);
   mgp_edges_iterator_destroy(edges_it);

tests/unit/query_procedures_mgp_graph.cpp

@@ -31,7 +31,7 @@
 #include "test_utils.hpp"
 #include "utils/memory.hpp"
 
-#define EXPECT_SUCCESS(...) EXPECT_EQ(__VA_ARGS__, MGP_ERROR_NO_ERROR)
+#define EXPECT_SUCCESS(...) EXPECT_EQ(__VA_ARGS__, mgp_error::MGP_ERROR_NO_ERROR)
 
 namespace {
 struct MgpEdgeDeleter {
@@ -193,7 +193,7 @@ TEST_F(MgpGraphTest, DetachDeleteVertex) {
   EXPECT_EQ(CountVertices(read_uncommited_accessor, memgraph::storage::View::NEW), 2);
   MgpVertexPtr vertex{EXPECT_MGP_NO_ERROR(mgp_vertex *, mgp_graph_get_vertex_by_id, &graph,
                                           mgp_vertex_id{vertex_ids.front().AsInt()}, &memory)};
-  EXPECT_EQ(mgp_graph_delete_vertex(&graph, vertex.get()), MGP_ERROR_LOGIC_ERROR);
+  EXPECT_EQ(mgp_graph_delete_vertex(&graph, vertex.get()), mgp_error::MGP_ERROR_LOGIC_ERROR);
   EXPECT_EQ(CountVertices(read_uncommited_accessor, memgraph::storage::View::NEW), 2);
   EXPECT_SUCCESS(mgp_graph_detach_delete_vertex(&graph, vertex.get()));
   EXPECT_EQ(CountVertices(read_uncommited_accessor, memgraph::storage::View::NEW), 1);
@@ -212,14 +212,14 @@ TEST_F(MgpGraphTest, CreateDeleteWithImmutableGraph) {
 
   mgp_graph immutable_graph = CreateGraph(memgraph::storage::View::OLD);
   mgp_vertex *raw_vertex{nullptr};
-  EXPECT_EQ(mgp_graph_create_vertex(&immutable_graph, &memory, &raw_vertex), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_graph_create_vertex(&immutable_graph, &memory, &raw_vertex), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   MgpVertexPtr created_vertex{raw_vertex};
   EXPECT_EQ(created_vertex, nullptr);
   EXPECT_EQ(CountVertices(read_uncommited_accessor, memgraph::storage::View::NEW), 1);
   MgpVertexPtr vertex_to_delete{EXPECT_MGP_NO_ERROR(mgp_vertex *, mgp_graph_get_vertex_by_id, &immutable_graph,
                                                     mgp_vertex_id{vertex_id.AsInt()}, &memory)};
   ASSERT_NE(vertex_to_delete, nullptr);
-  EXPECT_EQ(mgp_graph_delete_vertex(&immutable_graph, vertex_to_delete.get()), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_graph_delete_vertex(&immutable_graph, vertex_to_delete.get()), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   EXPECT_EQ(CountVertices(read_uncommited_accessor, memgraph::storage::View::NEW), 1);
 }
 
@@ -398,10 +398,11 @@ TEST_F(MgpGraphTest, ModifyImmutableVertex) {
       EXPECT_MGP_NO_ERROR(mgp_vertex *, mgp_graph_get_vertex_by_id, &graph, mgp_vertex_id{vertex_id.AsInt()}, &memory)};
   EXPECT_EQ(EXPECT_MGP_NO_ERROR(int, mgp_vertex_underlying_graph_is_mutable, vertex.get()), 0);
 
-  EXPECT_EQ(mgp_vertex_add_label(vertex.get(), mgp_label{"label"}), MGP_ERROR_IMMUTABLE_OBJECT);
-  EXPECT_EQ(mgp_vertex_remove_label(vertex.get(), mgp_label{label_to_remove.data()}), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_vertex_add_label(vertex.get(), mgp_label{"label"}), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_vertex_remove_label(vertex.get(), mgp_label{label_to_remove.data()}),
+            mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   MgpValuePtr value{EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_int, 4, &memory)};
-  EXPECT_EQ(mgp_vertex_set_property(vertex.get(), "property", value.get()), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_vertex_set_property(vertex.get(), "property", value.get()), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
 }
 
 TEST_F(MgpGraphTest, CreateDeleteEdge) {
@@ -452,16 +453,16 @@ TEST_F(MgpGraphTest, CreateDeleteEdgeWithImmutableGraph) {
   mgp_edge *edge{nullptr};
   EXPECT_EQ(
       mgp_graph_create_edge(&graph, from.get(), to.get(), mgp_edge_type{"NEWLY_CREATED_EDGE_TYPE"}, &memory, &edge),
-      MGP_ERROR_IMMUTABLE_OBJECT);
+      mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   CheckEdgeCountBetween(from, to, 1);
 
   MgpEdgesIteratorPtr edges_it{
       EXPECT_MGP_NO_ERROR(mgp_edges_iterator *, mgp_vertex_iter_out_edges, from.get(), &memory)};
   auto *edge_from_it = EXPECT_MGP_NO_ERROR(mgp_edge *, mgp_edges_iterator_get, edges_it.get());
   ASSERT_NE(edge_from_it, nullptr);
-  EXPECT_EQ(mgp_graph_delete_edge(&graph, edge_from_it), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_graph_delete_edge(&graph, edge_from_it), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   MgpEdgePtr edge_copy_of_immutable{EXPECT_MGP_NO_ERROR(mgp_edge *, mgp_edge_copy, edge_from_it, &memory)};
-  EXPECT_EQ(mgp_graph_delete_edge(&graph, edge_copy_of_immutable.get()), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_graph_delete_edge(&graph, edge_copy_of_immutable.get()), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
   CheckEdgeCountBetween(from, to, 1);
 }
 
@@ -616,5 +617,5 @@ TEST_F(MgpGraphTest, EdgeSetPropertyWithImmutableGraph) {
   ASSERT_NO_FATAL_FAILURE(GetFirstOutEdge(graph, from_vertex_id, edge));
   MgpValuePtr value{EXPECT_MGP_NO_ERROR(mgp_value *, mgp_value_make_int, 65, &memory)};
   EXPECT_EQ(EXPECT_MGP_NO_ERROR(int, mgp_edge_underlying_graph_is_mutable, edge.get()), 0);
-  EXPECT_EQ(mgp_edge_set_property(edge.get(), "property", value.get()), MGP_ERROR_IMMUTABLE_OBJECT);
+  EXPECT_EQ(mgp_edge_set_property(edge.get(), "property", value.get()), mgp_error::MGP_ERROR_IMMUTABLE_OBJECT);
 }

tests/unit/test_utils.hpp

@@ -29,7 +29,7 @@ TResult ExpectNoError(const char *file, int line, TFunc func, TArgs &&...args) {
   static_assert(std::is_trivially_copyable_v<TFunc>);
   static_assert((std::is_trivially_copyable_v<std::remove_reference_t<TArgs>> && ...));
   TResult result{};
-  EXPECT_EQ(func(args..., &result), MGP_ERROR_NO_ERROR) << fmt::format("Source of error: {}:{}", file, line);
+  EXPECT_EQ(func(args..., &result), mgp_error::MGP_ERROR_NO_ERROR) << fmt::format("Source of error: {}:{}", file, line);
   return result;
 }
 }  // namespace test_utils