Headers aren't added to response

Ahoi,

I’m trying to add headers to a response but can’t figure out why it doesn’t work. I tried these ways:

url = 'https://example.com/?cursor='
resp_body = [{'foo': 'bar'}, ]

responses.add(
    responses.Response(
        method='GET',
        url=url,
        json=resp_body,
        status=200,
        headers={
            'Link': f'<{ url }>; rel="first", <{ url }next_cursor>; rel="next"'
        },
        content_type='application/json'
    )
)
responses.add(
    responses.GET,
    url=f'{ url }next_cursor',
    json=resp_body,
    adding_headers={
        'Link': f'<{ url }>; rel="first", <{ url }prev_cursor>; rel="prev"'
    },
    status=200
)

In both cases the response returned in the code has only 1 header which is {'Content-Type': 'application/json'}. Am I doing something wrong?

I stepped through the responses code with a debugger and everything seems to work fine. The Response object gets created with the right headers but when the requests module is called it doesn’t get them back.

here are my versions:

• Python: 3.8.3
• pytest: 5.4.3
• requests: 2.23.0
• responses: 0.10.14

[XenGi]

Oh man… I’m should stop drinking and coding that late. The whole thing didn’t work because I got a one off in my tests. I was looking at the wrong one the whole time. Sorry to bother you. Everything is fine.

[XenGi]

I tried everything I found. I also use headers exactly like you do but they are not in the response. If you look at my example above, I’m using headers. I also tried to use the second example but with headers instead of adding_headers but it gives me the same result.

I just tried to build a smaller example and that worked:

import re
import requests
import responses


def foo():
    r = requests.get('https://example.com/foo?cursor=')
    things = []
    while 'Link' in r.headers.keys():
        things.append(r.json())
        m = re.search(r'<.+>; rel="first"(,\s+<(?P<previous>.+)>; rel="prev")?(,\s+<(?P<next>.+)>; rel="next")?', r.headers['Link'])
        if not m.group('next'):
            return things
        r = requests.get(m.group('next'))
    return things


@responses.activate
def test_foo():
    url = 'https://example.com/foo?cursor='

    responses.add(
        responses.GET,
        url=url,
        json={'foo': 1},
        headers={'Link': f'<{url}>; rel="first", <{url}next>; rel="next"'},
        status=200
    )
    responses.add(
        responses.GET,
        url=f'{url}next',
        json={'foo': 2},
        headers={'Link': f'<{url}>; rel="first", <{url}prev>; rel="prev"'},
        status=200
    )

    resp = foo()
    assert len(resp) == 2

Now I need to find out why it doesn’t in the real thing.