Identify overrides of upstream dependencies and make sure they are being tested

[eliotjordan]

Identify overrides of upstream dependencies like curation_concerns and make sure they are being tested properly. For example, If we are overriding a class or module and altering a method, our specs should test the whole module not just our overridden method. Changes to modules and method signatures in curation_concerns updates have caused failures that our test suite didn't catch. An example of this is derivative_path.rb.