@chrpr You could do that with all the metadata in the fixture. What you want to test is that the fixture gets mapped from <field> to Nyucore.field. I only said change the ID because you may actually have this file loaded in your test environment and so this is not a discrete test, there may be other variables that you're not accounting for. By making a dummy record you are just testing the mapping.

If you want to test that the ID is parsed you can use the same ID scheme but change the actual words so they won't match up anywhere potentially. It's just setting a control variable really.