Separated laravel app to its own folder (#540)

api/tests/TestCase.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Tests;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+
+abstract class TestCase extends BaseTestCase
+{
+    use CreatesApplication;
+    use RefreshDatabase;
+    use TestHelpers;
+}