Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\workspaces\liZiPingBack\vendor\maennchen\zipstream-php\test\BigintTest.php:10 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\maennchen\zipstream-php\test\BigintTest.php on line 10