Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/chuquicamata/public_html/bridge2/vendor/mike42/gfx-php/test/unit/Codec/PnmCodecTest.php:16 Stack trace: #0 {main} thrown in /home/chuquicamata/public_html/bridge2/vendor/mike42/gfx-php/test/unit/Codec/PnmCodecTest.php on line 16