gistfile1.cs

class DevTeamContext 
{
	protected static bool ExpectingException;
	protected static Exception Exception;

	protected static void dev_team_was_asked_to_do_a_rewrite()
	{
		var ex = Catch.Exception(() => DevTeam.ReWriteFromScratch());	
		if(ExpectingException)	
			Exception = ex;
		else
			throw ex;
	}
}

class When_a_development_is_asked_to_do_a_rewrite : DevTeamContext
{
	Establish context = () => ExpectingException = true;
	Because the = dev_team_was_asked_to_do_a_rewrite;
	It should_not_allow_the_dev_team_to_do_a_rewrite = () => Exception.ShouldBeOfType<ProgrammersBeenGivenTooMuchFreedomException>();
}