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