Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/opcon/src/composer/vendor/phpro/soap-client/test/PhproTest/SoapClient/Integration/Soap/Engine/AbstractIntegrationTest.php:12 Stack trace: #0 {main} thrown in /home/opcon/src/composer/vendor/phpro/soap-client/test/PhproTest/SoapClient/Integration/Soap/Engine/AbstractIntegrationTest.php on line 12