Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/hiphopdi/public_html/wiki2/extensions/SemanticMediaWiki/tests/phpunit/ClassAliasTest.php:18 Stack trace: #0 {main} thrown in /home/hiphopdi/public_html/wiki2/extensions/SemanticMediaWiki/tests/phpunit/ClassAliasTest.php on line 18