Running frozen uuid.uuid4() several times change its value.

[alexismoreau]

Hello,
Running str(uuid.uuid4()) several times doesn't keep the value at 00000000-0000-0000-0000-000000000000.

str(uuid.uuid4())
str(uuid.uuid4())

gives as a result

00000000-0000-0000-0000-000000000000
00000000-0000-0000-0000-000000000001

That makes my tests fail :(

Reproduction :

def test_freeze_uuids(freeze_uuids):
    assert str(uuid.uuid4()) == "00000000-0000-0000-0000-000000000000"
    assert str(uuid.uuid4()) == "00000000-0000-0000-0000-000000000000"

[Diapolo10]

I believe this is expected behaviour, because otherwise you'd run into issues immediately if the UUIDs were expected to retain their uniqueness - such as in databases.

It's still deterministic, meaning you can basically infer what values you'll be getting as long as you know the order of the UUID creation calls.