Use assertions

Author: mevdschee

tests/Math/Adder.php

@@ -0,0 +1,11 @@
+<?php 
+
+namespace MintyPHP\Mocking\Tests\Math;
+
+class Adder 
+{ 
+    public static function add($a, $b):int 
+    { 
+        return $a+$b; 
+    } 
+}