testing

Author: monnetchr

adder/Cargo.lock

@@ -0,0 +1 @@
+pub mod myutils;

adder/Cargo.toml

@@ -1,15 +1,14 @@
 mod guessgame;
 mod basics;
-mod myutils {
-    pub mod stuff;
-}
-use myutils::stuff;
+use rustcourse::myutils::stuff;
+use rustcourse::myutils::testing;
 
 fn main() {
     basics::basics();
     println!();
     stuff::collections();
     stuff::lifetimes();
+    testing::add(2, 2);
     println!();
     stuff::error_handling();
     guessgame::guess_game();

adder/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod stuff;
+pub mod testing;

src/lib.rs

@@ -0,0 +1,26 @@
+pub fn add(a: i32, b: i32) -> i32 {
+    internal_add(a, b)
+}
+
+fn internal_add(a: i32, b: i32) -> i32 {
+    a + b
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() -> Result<(), String> {
+        if internal_add(2, 2) == 4 {
+            Ok(())
+        } else {
+            Err(String::from("two plus two does not equal four"))
+        }
+    }
+
+    #[test]
+    fn it_works2() {
+        assert_eq!(internal_add(2, 2), 4);
+    }
+}

src/main.rs

@@ -0,0 +1,12 @@
+use rustcourse::myutils;
+
+#[cfg(test)]
+mod tests {
+    use super::myutils::testing;
+
+    #[test]
+    fn test_add() {
+        let result = testing::add(3, 5);
+        assert_eq!(result, 8);
+    }
+}