UnitTests are now located in tests directory & tiny improvements

tests/Fixtures/DummyServiceHandler.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Fixtures;
+
+class DummyServiceHandler
+{
+    /**
+     * @param DummyServiceRequest
+     * @return DummyServiceResponse
+     */
+    public function handle(DummyServiceRequest $request)
+    {
+        $response = new DummyServiceResponse();
+        $response->status = true;
+
+        return $response;
+    }
+}