Don't use TestCase for all unit tests

Author: driesvints

tests/TestCase.php

@@ -3,7 +3,7 @@
 
 use Illuminate\Foundation\Testing\TestCase as IlluminateTestCase;
 
-class TestCase extends IlluminateTestCase
+abstract class TestCase extends IlluminateTestCase
 {
     /**
      * Creates the application.

tests/Unit/GitHub/GistEmbedFormatterTest.php

@@ -2,10 +2,9 @@
 namespace Lio\Tests\Unit\GitHub;
 
 use Lio\Github\GistEmbedFormatter;
-use Lio\Tests\TestCase;
 use Mockery;
 
-class GistEmbedFormatterTest extends TestCase
+class GistEmbedFormatterTest extends \PHPUnit_Framework_TestCase
 {
     public function testCanCreate()
     {

tests/Unit/GitHub/GithubAuthenticatorTest.php

@@ -2,10 +2,9 @@
 namespace Lio\Tests\Unit\Github;
 
 use Lio\Github\GithubAuthenticator;
-use Lio\Tests\TestCase;
 use Mockery as m;
 
-class GithubAuthenticatorTest extends TestCase
+class GithubAuthenticatorTest extends \PHPUnit_Framework_TestCase
 {
     public function testCanCreateGithubAuthenticator()
     {