Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /mnt/volume_lon1_01/backend/admin/vendor/sebastian/diff/tests/Output/StrictUnifiedDiffOutputBuilderTest.php:23
Stack trace:
#0 {main}
thrown in /mnt/volume_lon1_01/backend/admin/vendor/sebastian/diff/tests/Output/StrictUnifiedDiffOutputBuilderTest.php on line 23