TypeError: _on_request() takes exactly 3 arguments (8 given)

[MathMagique]

I use responses while testing a few calls to a REST API. Calls to the REST API are made using requests.HTTPAdapter.send() (https://github.com/kennethreitz/requests/blob/master/requests/adapters.py#L375)

Mocking these requests with responses fails (at least when I have not prepared responses) with the following error message:

adapter = <requests.HTTPAdapter object at 0x105a8b890>
request = <PreparedRequest [GET]>, a = (False, None, True, None, None)
kwargs = {}

    def unbound_on_send(adapter, request, *a, **kwargs):
>       return self._on_request(adapter, request, *a, **kwargs)
E       TypeError: _on_request() takes exactly 3 arguments (8 given)

unbound_on_send is located in responses. The values for parameter a are the (default) parameters passed to HTTPAdapter.send().

These are the relevant lines in responses:

• https://github.com/getsentry/responses/blob/master/responses.py#L297 (call with expanded arguments)
• https://github.com/getsentry/responses/blob/master/responses.py#L231 (callee does not support extra positional arguments)

[beliaev-maksim]

@MathMagique
can you please provide a snippet to reproduce the issue?

if issue is not reproducible on latest master, please consider closing this issue

[beliaev-maksim]

@markstory
please close the issue

it is unclear how to reproduce. While we have an example of custom adapter running:

responses/responses/test_responses.py

Line 783 in 5084e3f

def test_custom_adapter():

[hakjoon]

Let me know if its better to open a new issue.

I am running into this with the 0.1.3.0 release of CacheControl it seems to only occur if you explicitly pass the arguments that HTTPAdpater.send if you just pass along *args, **kwargs it all seems to work.

Here is an adapted test based on the existing custom adapter test. It demonstrates the difference between the two calling patterns.

import requests
import responses
from responses.tests.test_responses import assert_response


def test_passing_custom_adapter():
    @responses.activate
    def run():
        url = "http://example.com"
        responses.add(responses.GET, url, body=b"test")

        calls = [0]

        class DummyAdapter(requests.adapters.HTTPAdapter):
            def send(self, *a, **k):
                calls[0] += 1
                return super().send(*a, **k)

        # Test that the adapter is actually used
        session = requests.Session()
        session.mount("http://", DummyAdapter())

        session.get(url, allow_redirects=False)
        assert calls[0] == 1

        # Test that the response is still correctly emulated
        session = requests.Session()
        session.mount("http://", DummyAdapter())

        resp = session.get(url)
        assert_response(resp, "test")

    run()


def test_breaking_custom_adapter():
    @responses.activate
    def run():
        url = "http://example.com"
        responses.add(responses.GET, url, body=b"test")

        calls = [0]

        class DummyAdapter(requests.adapters.HTTPAdapter):
            def send(self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None):
                calls[0] += 1
                return super().send(request, stream, timeout, verify, cert, proxies)

        # Test that the adapter is actually used
        session = requests.Session()
        session.mount("http://", DummyAdapter())

        session.get(url, allow_redirects=False)
        assert calls[0] == 1

        # Test that the response is still correctly emulated
        session = requests.Session()
        session.mount("http://", DummyAdapter())

        resp = session.get(url)
        assert_response(resp, "test")

    run()

The environment is

requests==2.31.0
responses==0.23.1

[beliaev-maksim]

@hakjoon
please open the new issue https://github.com/getsentry/responses/issues/new?assignees=&labels=&projects=&template=bug_report.yml

and add traceback and all relevant info
If all the sufficient info will be present, then I can have a look ASAP