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I am trying to mock a get request with requests_mock, but it doesn't seem to get it right.

My function calling a third-party API defined in a file lookup.py:

from botocore.vendored import requests

def get_data():
 url = 'https://abc.something.com/datapackage'
 url_params=
 'v': 2,
 'auth_apikey':'xyz'
 
 resp = requests.get(url, params=url_params)
 return resp.json()

I am using py.test to run my tests and in my test file. I have a fixture:

 import requests_mock
 import requests, pytest
 from lookup import get_data

 @pytest.fixture
 def req_mock(request):
 m = requests_mock.Mocker()
 m.start()
 request.addfinalizer(m.stop)
 return m

 def test_api_gets_data(req_mock):
 sample=
 'key1':123
 
 lookup_url = 'https://abc.something.com/datapackage'
 query_params = 
 'v': 2,
 'auth_apikey':'xyz'
 
 req_mock.get(lookup_url, json=sample)
 resp = get_data()

Apparently, requests_mock isn't able to use the same session as the requests in the get function, so it isn't getting mocked.

Is there a better way to do this?

I'm using Python 3.6, requests 2.18, requests-mock 1.52 and pytest 3.0.7.

at lookup.py files, lookup_url will raise NameError cause name lookup_url not defined.

use url and don't forget to change params=url_params, so the code will be something like this:

resp = requests.get(url, params=url_params)

Apparently you can't mock from botocore.vendored import requests with requests_mock.

Instead use unittest.mock to mock the response.

 from unittest import mock

 class MockResponse:
 def __init__(self, status_code, json_data=None):
 self.json_data = json_data
 self.status_code = status_code

 def json(self):
 return self.json_data

 def raise_for_status(self):
 if self.status_code >= 500:
 raise Exception

 item_not_found = 
 "Response": 
 "StatusCode": "ItemNotFound",
 
 

 item_not_found_resp = MockResponse(200, item_not_found)


 @mock.patch('botocore.vendored.requests.get', return_value=item_not_found_resp)
 def test_api_returns_not_found_when_third_party_api_returns_item_not_found(mc):
 resp = get(e1, c)
 exp_resp = 
 "statusCode": 404,
 "body": json.dumps(
 'error': 'no item found'
 )
 
 request_url = mc.call_args[0][0]
 request_params = mc.call_args[1]['params']
 assert lookup_url == request_url
 assert query_params == request_params
 assert exp_resp == resp