def evaluate(actual, expected)
      failure_message = expected_message.size_of(actual).to_be(expected).not(actual.size)
      expected === actual.size ? pass(new_message.is_of_size(expected)) : fail(failure_message)
    end
def evaluate(actual, expected)
      failure_message = expected_message.size_of(actual).to_be(expected).not(actual.size)
      expected === actual.size ? pass(new_message.is_of_size(expected)) : fail(failure_message)
    end
(see Riot::AssertionMacro#evaluate)
 @param [Number] expected the expected size of actual