Sorry for the late response.

Yes, these options / parameters are used when providing options in the request message. Here's a link to the API: http://cloudstack.apache.org/docs/api/apidocs-4.0.0/root_admin/listUsageRecords.html.

These test were added similar to the existing options - account Id, domain Id, keyword, etc. I believe the purpose of these tests is to make sure that the request options / parameters are being set correctly. 

I looked and I couldn't find an ExpectTest that this might fit under. Perhaps we can add those options to one of the existing tests in GlobalUsageApiTest.java?