rspec/rspec-mocks — pull request #361 by JonRowe (2013-07-11 04:53:18+00:00)
Title: Ensure null objects behave correctly with to_a and to_ary in 299

Further to #357 we could return nil when the double is a as_null_object, we shouldn't change the behaviour when it's not a null object but this could be considered slightly more correct behaviour.

This is #358 based off 2-99