Fatal error: Uncaught Error: Class "MediaWikiIntegrationTestCase" not found in /home/floten1/q.tenbergen.ca/extensions/Math/tests/phpunit/MathMLRdfBuilderTest.php:19 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Math/tests/phpunit/MathMLRdfBuilderTest.php on line 19