From: James Mead <jamesmead44@...>
Date: 2006-12-24T19:01:38+09:00
Subject: Re: Reverting module changes

The Stubba portion of Mocha (http://mocha.rubyforge.org) allows you to
temporarily replace the implementation of a Module method within a
test.

require 'test/unit'
require 'test/unit/ui/console/testrunner'
require 'rubygems'
require 'stubba'

class Test1 < Test::Unit::TestCase

  def test_should_force_system_to_return_false
    Kernel.stubs(:system).returns(false)
    assert_equal false, Kernel.system('echo')
  end

end

class Test2 < Test::Unit::TestCase

  def test_should_not_be_affected_by_other_test
    assert_equal true, Kernel.system('echo')
  end

end

class OrderedTests < Test::Unit::TestCase

  def self.suite
    suite = Test::Unit::TestSuite.new('OrderedTests')
    suite << Test1.suite
    suite << Test2.suite
  end

end

Test::Unit::UI::Console::TestRunner.run(OrderedTests)

-- 
James.
http://blog.floehopper.org