[mocha-developer] Mocking system/`

Kevin Clark kevin.clark at gmail.com
Tue Jun 12 14:58:57 EDT 2007


I could have sworn I tried that. Is it working for you?



> Try adding double quotes around the backtick like this:
>
> .expects(:"`").with("ls")
>
> -Jonathan
>
>
> > --- Original Message ---
> >> Bah, turned out to be a Merb reloading bug. Nevermind.
> >>
> >> On 6/11/07, Frederick Cheung <fred at 82ask.com> wrote:
> >>>
> >>> On 11 Jun 2007, at 23:19, Kevin Clark wrote:
> >>>
> >>>> This drives me insane on a regular basis. How does one mock
> >>>> system('blah') or `blah` ?
> >>>>
> >>>> Adding expectations on Kernel doesn't do it. Adding expectations on
> >>>> Object just makes me sad:
> >>>>
> >>>> Object.any_instance.expects(:system).with('ls')
> >>>>   # => #<Mock:0x12b584e>.system('ls') - expected calls: 0, actual
> >>>> calls: 1
> >>>>
> >>>> And this really shouldn't work (and doesn't):
> >>>>
> >>>> Object.expects(:system).with('ls')
> >>>>   # => #<Mock:0x12f287a>.system('ls') - expected calls: 1, actual
> >>>> calls: 0
> >>>>
> >>>> Anyone have a trick they like?
> >>>
> >>> system etc... are in a module that is included most places, so if we
> >>> have
> >>>
> >>> class Foo
> >>>    def my_method_calling_system
> >>>      system('echo "hello world"')
> >>>    end
> >>> end
> >>>
> >>> Then you need to do something like
> >>>
> >>> f = Foo.new
> >>> f.expects(:system).
> >>> f.my_method_calling_system
> >>>
> >>>
> >>> I would have expected Object.any_instance.expects(:system) to work
> >>> but a cursory attempt suggests it doesn;t
> >>>
> >>> Fred
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> mocha-developer mailing list
> >>> mocha-developer at rubyforge.org
> >>> http://rubyforge.org/mailman/listinfo/mocha-developer
> >>>
> >>
> >>
> >> --
> >> Kevin Clark
> >> http://glu.ttono.us
> >> _______________________________________________
> >> mocha-developer mailing list
> >> mocha-developer at rubyforge.org
> >> http://rubyforge.org/mailman/listinfo/mocha-developer
> >
> > _______________________________________________
> > mocha-developer mailing list
> > mocha-developer at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/mocha-developer
>
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>


-- 
Kevin Clark
http://glu.ttono.us


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