How do I test async code in Python?

How do I test async code in Python?

You can use the pytest framework along with pytest-asyncio to test async code in Python.

Can you show me a simple example?

Sure! Here's a basic example:

import pytest
import asyncio

async def async_function():
    await asyncio.sleep(1)
    return 42

@pytest.mark.asyncio
async def test_async_function():
    result = await async_function()
    assert result == 42

What if I want to test multiple async functions?

You can define multiple test functions using the same @pytest.mark.asyncio decorator for each async function you want to test.

Are there any other libraries I should know about?

Yes, besides pytest-asyncio, you might also want to look into asynctest for mocking async functions.