Add cases to testquality

[fpetersen-gl]

As this is a new feature, we should add some entries to TestQuality to be able to test it.
A more detailed specification about what should be tested should also be added here, so it comes later.

[NazaninAnsarii]

I would like to work on this issue.

[fpetersen-gl]

Hi @NazaninAnsarii!

Thanks for wanting to support! However, I think this is maybe not the right issue to start working on.
However, the test-cases should be added into the tool we're using internally to manage manual tests. If I'm not mistaken, you don't have access to it.

Please don't let this demotivate you from contributing to an open source project! In case you want to stick to graylog, please check our open issues (I've taken the liberty to filter for "good first issues").