unittest create_autospec

what is it?

creates a mock object using another object as a spec. Attributes on the mock will use the corresponding attribute on the spec object as their spec

example

link

from unittest import mock
 
import requests
from requests import Response
 
 
def get_my_ip():
    response = requests.get(" http://ipinfo.to/json")
    return response.json()["ip"]
 
 
def test_get_my_ip(monkeypatch):
    my_ip = "123.123.123.123"
    response = mock.create_autospec(Response)
    response.json.return_value = {"ip": my_ip}
    monkeypatch.setattr(requests, "get", lambda *args, **kwargs: response)
    assert get_my_ip() == my_ip