requests_mock.Mocker decorator does not work on async tests and also breaks subsequent (higher) patch decorators

[dhausauer-flx]

It appears that applying a requests_mock.Mocker decorator on an async test function of a unittest.IsolatedAsyncioTestCase does not work:

    @requests_mock.Mocker()
    async def test_mocker(self, m):
        m.get("http://127.0.0.1", text="response")
        requests.get("http://127.0.0.1", timeout=0.5)  # error
        assert m.called()  # not reached

Furthermore, it appears that when the requests_mock.Mocker decorator is applied after any unittest.mock.patch decorators, the preceding patch decorators are disabled:

    @mock.patch("test_requests_mock.should_not_run", return_value=True)
    @requests_mock.Mocker()
    async def test_patch_before_mocker(self, *_):
        assert should_not_run()  # fails

This does not occur if the requests_mock.Mocker decorator is placed above the unittest.mock.patch decorators:

    @requests_mock.Mocker()
    @mock.patch("test_requests_mock.should_not_run", return_value=True)
    async def test_patch_after_mocker(self, *_):
        assert should_not_run()  # passes

Tested with requests-mock version 1.11.0 on Python 3.7.9.

Full test file is below:

# test_requests_mock.py

# requirements.txt
# requests==2.31.0
# requests-mock==1.11.0

from unittest import IsolatedAsyncioTestCase, mock

import requests
import requests_mock


def should_not_run():
    return False


class TestRequestsMock(IsolatedAsyncioTestCase):
    @requests_mock.Mocker()
    async def test_mocker(self, m):
        m.get("http://127.0.0.1", text="response")
        requests.get("http://127.0.0.1", timeout=0.5)  # error
        assert m.called()  # not reached

    @mock.patch("test_requests_mock.should_not_run", return_value=True)
    @requests_mock.Mocker()
    async def test_patch_before_mocker(self, *_):
        assert should_not_run()  # fails

    @requests_mock.Mocker()
    @mock.patch("test_requests_mock.should_not_run", return_value=True)
    async def test_patch_after_mocker(self, *_):
        assert should_not_run()  # passes