Fatal error: Uncaught Error: Class 'Tests\TestCase' not found in /home/diligence/public_html/kusum/service/vendor/php-mqtt/client/tests/Feature/SupportedProtocolsTest.php:18
Stack trace:
#0 {main}
thrown in /home/diligence/public_html/kusum/service/vendor/php-mqtt/client/tests/Feature/SupportedProtocolsTest.php on line 18