A utility library for mocking out the `urllib3` Python library.
Project description
A utility library for mocking out the urllib3 Python library.
This is an adaptation of the responses library.
Response body as string
from urllib3_mock import Responses
import requests
responses = Responses('requests.packages.urllib3')
@responses.activate
def test_my_api():
responses.add('GET', '/api/1/foobar',
body='{"error": "not found"}', status=404,
content_type='application/json')
resp = requests.get('http://twitter.com/api/1/foobar')
assert resp.json() == {"error": "not found"}
assert len(responses.calls) == 1
assert responses.calls[0].request.url == '/api/1/foobar'
assert responses.calls[0].request.host == 'twitter.com'
assert responses.calls[0].request.scheme == 'http'
Request callback
import json
from urllib3_mock import Responses
import requests
responses = Responses('requests.packages.urllib3')
@responses.activate
def test_calc_api():
def request_callback(request):
payload = json.loads(request.body)
resp_body = {'value': sum(payload['numbers'])}
headers = {'request-id': '728d329e-0e86-11e4-a748-0c84dc037c13'}
return (200, headers, json.dumps(resp_body))
responses.add_callback('POST', '/sum',
callback=request_callback,
content_type='application/json')
resp = requests.post(
'http://calc.com/sum',
json.dumps({'numbers': [1, 2, 3]}),
headers={'content-type': 'application/json'},
)
assert resp.json() == {'value': 6}
assert len(responses.calls) == 1
assert responses.calls[0].request.url == '/sum'
assert responses.calls[0].request.host == 'calc.com'
assert (
responses.calls[0].response.headers['request-id'] ==
'728d329e-0e86-11e4-a748-0c84dc037c13'
)
Instead of passing a string URL into responses.add or responses.add_callback you can also supply a compiled regular expression.
import re
from urllib3_mock import Responses
import requests
responses = Responses('requests.packages.urllib3')
# Instead of
responses.add('GET', '/api/1/foobar',
body='{"error": "not found"}', status=404,
content_type='application/json')
# You can do the following
url_re = re.compile(r'/api/\d+/foobar')
responses.add('GET', url_re,
body='{"error": "not found"}', status=404,
content_type='application/json')
A response can also throw an exception as follows.
from urllib3_mock import Responses
from requests.packages.urllib3.exceptions import HTTPError
exception = HTTPError('Something went wrong')
responses = Responses('requests.packages.urllib3')
responses.add('GET', '/api/1/foobar',
body=exception)
# All calls to 'http://twitter.com/api/1/foobar' will throw exception.
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