TypeError: cannot unpack non-iterable CallbackResponse object

After upgrading from responses 0.12.0 to 0.12.1 our unit tests fail with the following error:

...

../../../../venv/lib/python3.8/site-packages/requests/sessions.py:590: in post
    return self.request('POST', url, data=data, json=json, **kwargs)
../../../../venv/lib/python3.8/site-packages/requests_oauthlib/oauth2_session.py:515: in request
    return super(OAuth2Session, self).request(
../../../../venv/lib/python3.8/site-packages/aws_xray_sdk/ext/requests/patch.py:27: in _xray_traced_requests
    return xray_recorder.record_subsegment(
../../../../venv/lib/python3.8/site-packages/aws_xray_sdk/core/recorder.py:424: in record_subsegment
    return_value = wrapped(*args, **kwargs)
../../../../venv/lib/python3.8/site-packages/requests/sessions.py:542: in request
    resp = self.send(prep, **send_kwargs)
../../../../venv/lib/python3.8/site-packages/requests/sessions.py:655: in send
    r = adapter.send(request, **kwargs)
../../../../venv/lib/python3.8/site-packages/responses.py:733: in unbound_on_send
    return self._on_request(adapter, request, *a, **kwargs)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <responses.RequestsMock object at 0x104e06880>
adapter = <requests.adapters.HTTPAdapter object at 0x10a7a8a00>
request = <PreparedRequest [POST]>
kwargs = {'cert': None, 'proxies': OrderedDict(), 'stream': False, 'timeout': 10, ...}

    def _on_request(self, adapter, request, **kwargs):
>       match, match_failed_reasons = self._find_match(request)
E       TypeError: cannot unpack non-iterable CallbackResponse object

../../../../venv/lib/python3.8/site-packages/responses.py:680: TypeError

This seems to have been caused by the refactoring of the Response._find_match() method.

[philhoff-edeka]

@hramezani I’ve also tried to create a minimal example for you. It passes on my machine when I use responses version 0.12.0 and fails when I upgrade to 0.12.1:

# coding=utf-8
import responses
from requests_oauthlib import OAuth2Session


@responses.activate
def test_response():
    # given
    responses.add(
        method = responses.POST,
        url = "https://example.com/",
        body = "expected",
        status = 200
    )

    # when
    oauth_session = OAuth2Session()
    response = oauth_session.post(
        url = "https://example.com/",
        data = "actual"
    )

    # then
    assert len(responses.calls) == 1
    assert responses.calls[0].request.url == "https://example.com/"
    assert responses.calls[0].request.body == "actual"
    assert response.text == "expected"

[hramezani]

I created a PR(https://github.com/getsentry/responses/pull/359) to address this problem.