def test_copy_with_keys(self):
frozen = FrozenOrderedDict(a=0, b=1)
copied = frozen.copy(b=2, c=3)
self.assertIs(type(copied), type(frozen))
self.assertMappingEqual(copied, dict(a=0, b=2, c=3))
def test_copy(self):
frozen = FrozenOrderedDict(a=0, b=1)
copied = frozen.copy()
self.assertIs(type(copied), type(frozen))
self.assertMappingEqual(copied, frozen)