[rspec-users] Argument Non-Matchers

Matt Hauck matthauck at gmail.com
Wed Apr 11 17:18:29 UTC 2012


Hmm, that's not exactly what I was thinking of... I don't mean that there 
should be no arguments at all, but that the arguments should _not_ be of a 
certain match. 

On Tuesday, April 10, 2012 8:48:37 PM UTC-7, Justin Ko wrote:
>
>
> On Apr 9, 2012, at 2:41 PM, Matt Hauck wrote:
>
> Is there a way to specify a message expectation on an object to occur 
> _without_ a particular argument?
>
> There is a particular function, which in some special circumstance takes a 
> unique argument, but in normal circumstances does not take this unique 
> argument. I want to say something like this:
>  
> it "should recognize the special state" do 
>
> obj.set_special_state true
> obj.should_receive(:my_method).with(/special_state/)
> obj.my_method
>
> end
> it "should operate fine without the special state" do 
>
> obj.set_special_state false
> obj.should_receive(:my_method).without(/special_state/)
> obj.my_method
>
> end 
>
> This does not appear to be possible to set a "non-expectation" on an 
> argument matcher. Is there a way to do this? Or am I just going about this 
> the wrong way?
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>
> Sorry for the late reply. This is what you want:
>
> http://rubydoc.info/gems/rspec-mocks/RSpec/Mocks/ArgumentMatchers:no_args
>
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