Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ywbshareacopy/public_html/vendor/mglaman/composer-drupal-lenient/tests/PackageRequiresAdjusterTest.php:19 Stack trace: #0 {main} thrown in /home/ywbshareacopy/public_html/vendor/mglaman/composer-drupal-lenient/tests/PackageRequiresAdjusterTest.php on line 19