This should be the last diff to get the child mocks detecting their type as either synchronous or asynchronous and returning AsyncMock or MagicMock (or Mock) depending on their type.

The main goal is for classes that have a mix of asynchronous and synchronous methods to auto-detect whether they should be AsyncMock or a synchronous mocks. Example:

  >>> class ExampleClass:
  ...     def sync_foo():
  ...         pass
  ...     async def async_foo():
  ...         pass
  ...
  >>> a_mock = AsyncMock(ExampleClass)
  >>> a_mock.sync_foo
  <MagicMock name='a_mock.sync_foo' id='...'>
  >>> a_mock.async_foo
  <AsyncMock name='a_mock.async_foo' id='...'>
  >>> mock = Mock(ExampleClass)
  >>> mock.sync_foo
  <Mock name='mock.sync_foo' id='...'>
  >>> mock.async_foo
  <AsyncMock name='mock.async_foo' id='...'>

This defies Mock's typical functionality where all child mocks follow the type of their parent mock, but after some discussion I believe the auto-detection is more important to the typical user than a consistency with current Mock style.

https://bugs.python.org/issue38163