Rails - Jun 2007 - Is mock Object the best way to test scheduling system with a lot of Time.now?

Hi everyone,
    I hope everyone is doing well.
   I am working on a scheduling system that dealing with Time.now a
lot.  It is getting tricky to write test code for the function.

   suppose a function in a model:

   def expired?
        self.expire_time <= Time.now
   end

   i was wondering what is the best way to test it.   Or should I say
that I should design the function in the following way (more
testable?)

    def expired?(time)
         self.expire_time <= time
    end

    then I should use it in the following way :  object.expired?
(Time.now)
    it is also easier to write test code.

    Any comments and suggestions will be greatly appreciated :)

thanks
Kevin


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You could use Mocha (http://mocha.rubyforge.org) to temporarily stub
the Time.now method for the duration of an individual test. Something
like this...

require ''mocha''

def test_me
 specific_time = Time.parse(''2007-01-01 06:30:00'')
 Time.stubs(:now).returns(specified_time)

 Time.now # => Mon Jan 01 06:30:00 +0000 2007
end

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Wow~~
This is genius ~~ how simply the dirty work could be done !

Great thanks to James :)


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