Skip to main content

Run all your asynchronous tests cooperatively.

Project description

https://img.shields.io/badge/code%20style-black-000000.svg

Use asyncio (cooperative multitasking) to run your I/O bound test suite efficiently and quickly.

import asyncio

import pytest

@pytest.mark.asyncio_cooperative
async def test_a():
    await asyncio.sleep(2)


@pytest.mark.asyncio_cooperative
async def test_b():
    await asyncio.sleep(2)
========== 2 passed in 2.05 seconds ==========

Quickstart

pip install pytest-asyncio-cooperative

Goals

  • Reduce the total run time of I/O bound test suites via cooperative multitasking

  • Reduce system resource usage via cooperative multitasking

Pros

  • An I/O bound test suite will run faster (ie. individual tests will take just as long. The total runtime of the entire test suite will be faster)

  • An I/O bound test suite will use less system resources (ie. only a single thread is used)

Cons

  • All tests MUST be coroutines (ie. have the async keyword)

  • Order of tests is not guaranteed (ie. some blocking operations might taken longer and affect the order of test results)

  • Tests MUST be isolated from each other (ie. NO shared resources, NO mock.patch)

  • There is NO parallelism, CPU bound tests will NOT get a performance benefit

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pytest-asyncio-cooperative-0.3.1.tar.gz (4.9 kB view hashes)

Uploaded Source

Built Distribution

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page