See for example https://integration.wikimedia.org/ci/job/mwext-Math-testextension-zend/5/console
```
ResourcesTest::testMissingDependencies
The module 'ext.visualEditor.mwcore' required by 'ext.math.visualEditor' must exist
Failed asserting that an array contains 'ext.visualEditor.mwcore'.
/srv/ssd/jenkins-slave/workspace/mwext-Math-testextension-zend/src/tests/phpunit/structure/ResourcesTest.php:74
/srv/ssd/jenkins-slave/workspace/mwext-Math-testextension-zend/src/tests/phpunit/MediaWikiTestCase.php:141
```
```
ResourcesTest::testUnsatisfiableDependencies
Undefined index: ext.visualEditor.mwcore
/srv/ssd/jenkins-slave/workspace/mwext-Math-testextension-zend/src/tests/phpunit/structure/ResourcesTest.php:94
/srv/ssd/jenkins-slave/workspace/mwext-Math-testextension-zend/src/tests/phpunit/MediaWikiTestCase.php:141
```