test_request_mock.py

# -*- coding: utf-8 -*-

import mock

import requests


def make_request():
    try:
        return requests.get('http://httpbin.org/ip').json()['origin']
    except requests.exceptions.ConnectionError:
        return '127.0.0.1'


@mock.patch.object(requests, 'get', side_effect=requests.exceptions.ConnectionError('No Internet'))
def test_requests_mock(r_mock):
    ip = make_request()

    assert ip == '127.0.0.1'