Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24\htdocs\anteriores\apifac\vendor\sebastian\diff\tests\ChunkTest.php:20 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\anteriores\apifac\vendor\sebastian\diff\tests\ChunkTest.php on line 20