Mocking async call in python 3.5

Question

How do I mock async call from one native coroutine to other one using unittest.mock.patch?

I currently have quite an awkward solution:

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Answer 1

You can set the return_value of an async method like so:

mock = unittest.mock.MagicMock()
mock.your_async_method.return_value = task_from_result(your_return_value)

async def task_from_result(result):
    return result

The caller will have to do await your_async_method(..) just like as if the method wasn't mocked.