Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/noct-c/www/tanakahashi/vendor/sebastian/type/tests/unit/NullTypeTest.php:17
Stack trace:
#0 {main}
thrown in /home/noct-c/www/tanakahashi/vendor/sebastian/type/tests/unit/NullTypeTest.php on line 17