Sunday, April 1, 2012
I'm glad you found my snippet helpful!
Testing associations is trickier, and I must admit that I don't test associations as thoroughly as I probably should. I usually just test that the record responds to the association (e.g.: record.must_respond_to :association).
I took a look at the "shoulda-matchers" gem's source code. Those association matchers test for a whole bunch of stuff (foreign keys, join tables, correct class names, etc.), some of which are probably re-testing ActiveRecord functionality which we should be able to assume works correctly. A good test for associations should fall somewhere in between these two extremes.
I'd love to hear if anyone else has suggestions.
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