Hi, I'm a bit stuck with mocking a unit test of a join model with regards to a validates_uniqueness_of clause.
I have class Book < AR:B has_many :clippings various validates_presence_of etc end class Clip < AR:B has_many :clippings various validates_presence_of etc end class Clipping < AR:B belongs_to :book belongs_to :clip validates_uniqueness_of :clip_id, :scope => :book_id end What I want to do is just confirm that the validates uniqueness_of clause is set and functioning correctly in the spec for the clipping model. So if I was using fixtures I would do something like it "should not allow duplicate clips in the same book" do clip = clips( :some_clip ) book = books( :some_book ) lambda do clipping = Clipping.create( :clip => clip, :book => book ) end.should change( Clipping, :count ).by( 1 ) lambda do clipping = Clipping.create( :clip => clip, :book => ) clipping.should_not be_valid end.should_not change( Clipping, :count ) end Any hints as to how to do this without using fixtures? Cheers Daniel
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