I''m experiencing some strange behaviour with an ActiveRecord model object. I''m trying to spec that a mocked AR object, @form, has an error on the "file" attribute. I''ve confirmed that there *is* an error on the "file" attribute, because I print out the error. However, the spec fails, saying that one error was expected, but zero were found. I''ve pasted some code to help with figuring this out: http://pastie.org/387327 One thing that I''ve noticed is that if I comment this out in my spec: 195 @form.valid? then the spec passes. Any idea what''s going on? I''d really appreciate any help at all, as I''ve been banging my head against this for a while, now. -Nick