[New-bugs-announce] [issue38857] AsyncMock issue with awaitable return_value/side_effect/wraps

[Jason Fried]

New submission from Jason Fried <me at jasonfried.info>:

If you are trying to use AsyncMock to mock a coroutine that returns awaitable objects, AsyncMock awaits on those objects instead of returning them as is. 

Example:
  mock = AsyncMock(return_value=asyncio.Future())
  v = await mock()  # blocks on trying to await the future

Expected:
  mock = AsyncMock(return_value=asyncio.Future())
  v = await mock()
  assert isisnstance(v, asyncio.Future)

This problem affects side_effects and wraps.

----------
components: Library (Lib)
messages: 357000
nosy: fried, lisroach
priority: normal
severity: normal
status: open
title: AsyncMock issue with awaitable return_value/side_effect/wraps
versions: Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38857>
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