def test_normal(self):
original = {
1: {1,2,3},
2: {1},
3: {4,5}
}
actual_dict = original.copy()
actual = MultiDict(actual_dict)
assert actual.dict == actual_dict
assert set(actual.items()) == {(1,1), (1,2), (1,3), (2,1), (3,4), (3,5)}
assert set(actual.keys()) == {1, 2, 3}
assert set(actual.values()) == {1, 2, 3, 4, 5}
assert actual.invert() == {
1: {1,2},
2: {1},
3: {1},
4: {3},
5: {3}
}
def test_empty(self):
actual = MultiDict({})
assert set(actual.items()) == set()
assert set(actual.keys()) == set()
assert set(actual.values()) == set()
assert actual.invert() == {}
