'The constants returned from L{Flags.iterconstants} are identical on
each call to that method.'

def test_iterconstantsIdentity(self):

    constants = list(self.FXF.iterconstants())
    again = list(self.FXF.iterconstants())
    self.assertIs(again[0], constants[0])
    self.assertIs(again[1], constants[1])
    self.assertIs(again[2], constants[2])
    self.assertIs(again[3], constants[3])
    self.assertIs(again[4], constants[4])
