Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /opt/app-root/src/wp-content/plugins/wp-all-export/src/App/Categories/CategoriesCollectionTest.php:4 Stack trace: #0 {main} thrown in /opt/app-root/src/wp-content/plugins/wp-all-export/src/App/Categories/CategoriesCollectionTest.php on line 4