Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-media-gallery-metadata/Test/Integration/Model/Gif/Segment/XmpTest.php:23 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-media-gallery-metadata/Test/Integration/Model/Gif/Segment/XmpTest.php on line 23