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How can you configure a pytest fixture to execute its setup code only once per entire test session?

hard🚀 Application Q9 of 15
PyTest - Fixtures
How can you configure a pytest fixture to execute its setup code only once per entire test session?
AUse @pytest.fixture(scope='function') to limit setup to one test
BSet the fixture's scope parameter to 'session' using @pytest.fixture(scope='session')
CCall the fixture manually in each test to control execution
DDefine the fixture inside each test function
Step-by-Step Solution
Solution:

  1. Step 1: Understand fixture scopes

    Pytest fixtures support scopes like 'function', 'class', 'module', and 'session'.

  2. Step 2: Identify session scope

    Setting scope='session' runs setup once per test session.

  3. Final Answer:

    Set the fixture's scope parameter to 'session' using @pytest.fixture(scope='session') -> Option B

  4. Quick Check:

    Use scope='session' for once-per-session setup [OK]
Quick Trick: Use scope='session' to run fixture once per session [OK]
Common Mistakes:
MISTAKES
  • Using default 'function' scope expecting single setup
  • Manually calling fixtures instead of using scope
  • Defining fixtures inside test functions

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