public void testSavingUserPersistsSucceeds()
	{
		final IUser user = mock(IUser.class);
		final IUserPersister userPersister = new UserPersister();
		final IBillingAPI billingAPI = mock(IBillingAPI.class);
		IUserPresenter presenter = new UserPresenter(userPersister, null, billingAPI);

		 checking(new Expectations() {{
			 oneOf(user).checkValid();will(returnValue(true));
		    }});
		 presenter.createAccount(user);
		 userPersister.persistUser(user);
	}