Initial commit.

assert_demo/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "assert_demo"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

assert_demo/src/lib.rs

@@ -0,0 +1,43 @@
+pub fn add_two(a: i32) -> i32 {
+    a + 2
+}
+
+pub fn nth_fibonacci(n: u64) -> u64 {
+
+    if n == 0 || n == 1 { 
+        return n; 
+    } else { 
+        return nth_fibonacci(n - 1) + nth_fibonacci(n - 2); 
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn add_two_and_two() {
+        assert_eq! (4, add_two(2));
+    }
+
+    #[test]
+    fn add_three_and_two() {
+        assert_eq! (5, add_two(3));
+    }
+
+    #[test]
+    fn one_hundred() {
+        assert_eq! (102, add_two(100));
+    }
+
+    #[test]
+    fn it_works() {
+        assert_eq! (2 + 2, 4);
+    }
+
+    #[test]
+    #[ignore]
+    fn expensive_test() {
+        assert_ne! (100, nth_fibonacci(50));
+    }
+}