Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24_x64\htdocs\origin_cms\vendor\sebastian\diff\tests\Output\StrictUnifiedDiffOutputBuilderTest.php:23 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\origin_cms\vendor\sebastian\diff\tests\Output\StrictUnifiedDiffOutputBuilderTest.php on line 23