Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /data/htmlwww/common/jpgraph/vendor/sebastian/diff/tests/Output/DiffOnlyOutputBuilderTest.php:22 Stack trace: #0 {main} thrown in /data/htmlwww/common/jpgraph/vendor/sebastian/diff/tests/Output/DiffOnlyOutputBuilderTest.php on line 22