I have the following test code:
assert_no_difference Avatar, :count do a = create_avatar(:description => nil) assert a.errors.on(:description) end
further down, create_avatar looks like:
def create_avatar(options = {}) Avatar.create(:description => "Foo Descr.").merge(options) end
(Borrowed from the user test in acts_as_auth...)
It seems to pass, as my avatar model has:
validates_presence_of :description written.
However, if say I try to force it to fail with assert_difference... it still passes.
What did I miss?