Fatal error: Uncaught Error: Class 'Cake\TestSuite\Fixture\TestFixture' not found in /var/www/html/cake3-migration/tests/test_files/AppUsesImplicitTestCaseAfter.php:7
Stack trace:
#0 {main}
  thrown in /var/www/html/cake3-migration/tests/test_files/AppUsesImplicitTestCaseAfter.php on line 7