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vanne on 01/21/07

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ruby

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Last Edited at 01/21/07 04:47pm

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assert_difference

/ Published in: Ruby

A custom assertion that will allow you to pass a block to find the difference between two values.

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def assert_difference(object, method, difference=1)
  initial_value = object.send(method)
  yield
  assert_equal initial_value + difference, object.send(method)
end

URL: http://weblog.jamisbuck.org/2007/1/19/blocks-rock

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