Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/esecureh/public_html/magdemo/dev/tests/integration/testsuite/Magento/EncryptionKey/Setup/Patch/Data/SodiumChachaPatchTest.php:15 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/integration/testsuite/Magento/EncryptionKey/Setup/Patch/Data/SodiumChachaPatchTest.php on line 15