Fatal error: Uncaught Error: Class "Monolog\TestCase" not found in /htdocs/demos/testDFDS/plugins/google-api-php-client/vendor/monolog/monolog/tests/Monolog/Handler/NativeMailerHandlerTest.php:23 Stack trace: #0 {main} thrown in /htdocs/demos/testDFDS/plugins/google-api-php-client/vendor/monolog/monolog/tests/Monolog/Handler/NativeMailerHandlerTest.php on line 23