pytest Quick Start Guide

pytest-asyncio

The asyncio (https://docs.python.org/3/library/asyncio.html) module is one of the hot new additions to Python 3, providing a new framework for asynchronous applications. The pytest-asyncio plugin lets you write asynchronous test functions, making it a snap to test your asynchronous code.

All you need to do is make your test function async def and mark it with the asyncio mark:

@pytest.mark.asyncioasync def test_fetch_requests():    requests = await fetch_requests("example.com/api")    assert len(requests) == 2

The plugin also manages the event loop behind the scenes, providing a few options on how to change it if you need to use a custom event loop.

You are, of course, free to have normal synchronous test functions along with the ...