[Solved] Examine the following pytest fixture code:import pytest def sample_fixture(request): def cleanup(): print('Cleaning up') cleanup() request.... | PyTest

PyTest - Fixtures

Examine the following pytest fixture code:

import pytest

def sample_fixture(request):
    def cleanup():
        print('Cleaning up')
    cleanup()
    request.addfinalizer(cleanup)
    return 42

What is the main issue with this fixture?

Arequest.addfinalizer is called after the cleanup function

BThe fixture returns a non-callable value

CThe cleanup function is called immediately instead of being deferred

DThe fixture is missing the @pytest.fixture decorator

Step-by-Step Solution

Solution:

Step 1: Analyze the cleanup call
The line cleanup() calls the cleanup function immediately during fixture setup.
Step 2: Understand addfinalizer purpose
request.addfinalizer(cleanup) registers the cleanup function to run after the test finishes.
Step 3: Identify the problem
Calling cleanup() immediately defeats the purpose of finalization; cleanup should only run after the test.
Final Answer:
The cleanup function is called immediately instead of being deferred -> Option C
Quick Check:
Ensure cleanup is registered, not called upfront [OK]

Quick Trick: Do not call cleanup; just register it with addfinalizer [OK]

Common Mistakes:

MISTAKES

Calling the cleanup function inside the fixture instead of registering it
Forgetting to decorate the fixture with @pytest.fixture (not the main issue here)
Returning a non-callable value (allowed in fixtures)

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More PyTest Quizzes

Examine the following pytest fixture code:

Step 1: Analyze the cleanup call

Step 2: Understand addfinalizer purpose

Step 3: Identify the problem

Final Answer:

Quick Check:

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