pytest-repeated 0.2.2

A pytest module for very basic statistical tests. Repeat test multiple times and pass if the underlying test passes a threshold.

Introduction

Pytest plugin to repeat tests and pass if the test passes a number of times out of a total.

Purpose

I want to leverage pytest for model evaluation in a way that can be readily incorporated into CI/CD flows.

(Also consider giving pytest-repeat a look - I wrote pytest-repeated for statistical testing, as in, there are situations where one or two failures out of a hundred is acceptable.)

Installation

pip install pytest-repeated

🚀 Usage Example

@pytest.mark.repeated(times=4, threshold=2)
def test_example_fail_once():
    import random
    assert random.choice([True, False])  # may pass or fail

This test will run four times and pass if we get True in at least two of the four iterations.

🛠️ Development

The only requirement is 🐳 Docker. (The .devcontainer and tasks.json are prepared assuming a *nix system, but if you know the commands, this will work on Windows, too.)

1. Clone the repo.
2. Branch out.
3. Open in "devcontainer" on VS Code and start developing. Run pytest under tests to test.
4. Akternatively, if you are a fan of Test-Driven Development like me, you can run the tests without getting on a container. .vscode/tasks.json has the command to do so, but it's also listed here:

docker compose -f tests/docker-compose.yaml up --build --abort-on-container-exit --exit-code-from test

4. When satisfied, push and open a PR. The pipeline will publish automatically when your PR is merged.

Future Plans

• Better statistical measures
• Optimized testing - stop conditions.
• Sequential testing.
• Ability to set the seed.
• Report and fail on speed