Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/luxurytr/public_html/lt8/vendor/imgix/imgix-php/tests/Imgix/Tests/UrlHelperTest.php:5 Stack trace: #0 {main} thrown in /home/luxurytr/public_html/lt8/vendor/imgix/imgix-php/tests/Imgix/Tests/UrlHelperTest.php on line 5