Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /usr/home/wzhuxu/domains/tc.zhu.ddns-ip.net/public_html/tests/Feature/Auth/RegistrationTest.php:9
Stack trace:
#0 {main}
  thrown in /usr/home/wzhuxu/domains/tc.zhu.ddns-ip.net/public_html/tests/Feature/Auth/RegistrationTest.php on line 9