def test_notLookupMissingByValue(self):
        self.assertRaises(ValueError, self.FXF.lookupByValue, 0x10)
L{Flags.lookupByValue} raises L{ValueError} when called with a value
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/test/test_constants.py/FlagsTests.test_notLookupMissingByValue