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Deterministically frozen UUID's for your tests

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CI PyPI version

Deterministically frozen UUID's for your tests.


  • Freeze UUID's globally and locally.


You can install "pytest-frozen-uuids" via pip from PyPI:

$ pip install pytest-frozen-uuids


Freeze UUID's by using the freeze_uuids fixture:

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

Or by using the freeze_uuids marker:

import pytest

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


Contributions are very welcome. Tests can be run with tox. You can later check coverage with coverage combine && coverage html. Please try to keep coverage at least the same before you submit a pull request.


Distributed under the terms of the MIT license, "pytest-frozen-uuids" is free and open source software


If you encounter any problems, please file an issue along with a detailed description.


This Pytest plugin was generated with Cookiecutter along with @hackebrot's Cookiecutter-pytest-plugin template.

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