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What is the main purpose of using request.addfinalizer in a pytest fixture?

easy🧠 Conceptual Q11 of 15
PyTest - Fixtures
What is the main purpose of using request.addfinalizer in a pytest fixture?
ATo register a cleanup function that runs after the test finishes
BTo skip the test if a condition is met
CTo mark a test as expected to fail
DTo parametrize the test with multiple inputs
Step-by-Step Solution
Solution:

  1. Step 1: Understand the role of request.addfinalizer

    This method is used inside fixtures to add a function that will run after the test, regardless of test outcome.

  2. Step 2: Identify the purpose of finalizers

    Finalizers clean up resources like files, connections, or data to keep tests independent and avoid side effects.

  3. Final Answer:

    To register a cleanup function that runs after the test finishes -> Option A

  4. Quick Check:

    Finalizer = cleanup function [OK]
Quick Trick: Finalizers always clean up after tests finish [OK]
Common Mistakes:
MISTAKES
  • Confusing finalizers with test skipping
  • Thinking finalizers run before tests
  • Using finalizers to parametrize tests

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