Merge pull request #3799 from drawmyattention/patch-1

Make TestCase abstract

tests/TestCase.php

@@ -1,6 +1,6 @@
 <?php
 
-class TestCase extends Illuminate\Foundation\Testing\TestCase
+abstract class TestCase extends Illuminate\Foundation\Testing\TestCase
 {
     /**
      * The base URL to use while testing the application.