Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/cooperativamaism/public_html/staging/vendor/commerceguys/addressing/tests/PostalCodeHelperTest.php:11
Stack trace:
#0 {main}
thrown in /home/cooperativamaism/public_html/staging/vendor/commerceguys/addressing/tests/PostalCodeHelperTest.php on line 11