foo.py

__requires__ = ['pytest-responses', 'pytest']


import requests


def test_paginated_request(responses):
    responses.add(
        responses.GET,
        'https://service.test/api/paginated/',
        json=dict(
            objects=[1, 2, 3],
            meta=dict(next='/api/paginated/?start=4'),
        ),
    )
    responses.add(
        responses.GET,
        'https://service.test/api/paginated/?start=4',
        json=dict(
            objects=[4, 5, 6],
        ),
    )
    requests.get('https://service.test/api/paginated/')
    doc = requests.get('https://service.test/api/paginated/?start=4').json()
    assert doc['objects'] == [4, 5, 6]