aioresponses

aioresponses is a Python library that allows you to easily mock out HTTP requests made by `aiohttp.ClientSession` in your asynchronous tests. It intercepts `aiohttp` requests and provides predefined responses, enabling isolated and fast testing of `asyncio` applications that interact with external services. The library is actively maintained, with a somewhat sporadic release cadence, focusing on compatibility with newer `aiohttp` versions and API refinements.