'L{twisted.python.constants.FlagConstant} preserves definition
order in C{<=} comparisons.'

def test_orderedFlagConstants_le(self):

    self.assertTrue((PizzaToppings.mozzarella <= PizzaToppings.mozzarella))
    self.assertTrue((PizzaToppings.mozzarella <= PizzaToppings.pesto))
    self.assertTrue((PizzaToppings.pesto <= PizzaToppings.pepperoni))
