Add support for running test command as well as build

test-project/src/main.rs

@@ -1,3 +1,11 @@
 fn main() {
     println!("Hello, world!");
 }
+
+#[cfg(test)]
+mod test {
+    #[test]
+    fn test_something() {
+        assert_eq!(1, 1);
+    }
+}