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In pytest, what effect does setting autouse=True on a fixture have on test execution?

easy🧠 Conceptual Q1 of 15
PyTest - Fixtures
In pytest, what effect does setting autouse=True on a fixture have on test execution?
AThe fixture only runs if the test function name starts with 'test_autouse'.
BThe fixture must be manually called inside each test function to run.
CThe fixture disables other fixtures in the same module.
DThe fixture runs automatically for all tests in its scope without needing to be explicitly requested.
Step-by-Step Solution
Solution:

  1. Step 1: Understand autouse parameter

    Setting autouse=True means the fixture is automatically applied to tests within its scope.

  2. Step 2: Effect on test functions

    Tests do not need to explicitly request the fixture; it runs before each test in the fixture's scope.

  3. Final Answer:

    The fixture runs automatically for all tests in its scope without needing to be explicitly requested. -> Option D

  4. Quick Check:

    Autouse fixtures run implicitly [OK]
Quick Trick: Autouse fixtures run automatically without explicit use [OK]
Common Mistakes:
MISTAKES
  • Thinking autouse fixtures require explicit invocation
  • Assuming autouse disables other fixtures
  • Believing autouse runs only for specific test name patterns

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