Code Quiz

Mocking an Imported Function

A pytest mock patches the wrong target, so the real function still runs.

Codepython

# service.py
from utils import fetch_data

def process():
    return fetch_data() * 2

# test_service.py
from unittest.mock import patch
import service

@patch("utils.fetch_data")
def test_process(mock_fetch):
    mock_fetch.return_value = 5
    assert service.process() == 10

Why does this test fail to mock fetch_data as intended?

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