[x] Update the test data to test the source attribute when comparing to multiple vocab lists (NCAS and community instruments - accessed via data:description properties.
[x] Add more tests as examples of specific kinds of checks that we have been working on. The tests should have enough annotation (i.e. comments) to guide somebody creating YAML checks in how to write them for a specific check class. So each possible option should be included as an example in the tests.
The tests need checking and updating.
sourceattribute when comparing to multiple vocab lists (NCAS and community instruments - accessed viadata:descriptionproperties.Tagging: @gapintheclouds