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How can you mark a test as expected to fail only on Python 3.12 and above using @pytest.mark.xfail?

hard🚀 Application Q9 of 15
PyTest - Markers
How can you mark a test as expected to fail only on Python 3.12 and above using @pytest.mark.xfail?
A@pytest.mark.xfail(condition=sys.version_info >= (3, 12))
B@pytest.mark.xfail(sys.version_info >= (3, 12))
C@pytest.mark.xfail(lambda: sys.version_info >= (3, 12))
D@pytest.mark.xfail(condition=sys.version_info < (3, 12))
Step-by-Step Solution
Solution:

  1. Step 1: Understand conditional xfail

    pytest allows condition argument to mark xfail only if condition is True.

  2. Step 2: Correct syntax

    Use @pytest.mark.xfail(condition=expression) where expression is boolean.

  3. Step 3: Check options

    @pytest.mark.xfail(condition=sys.version_info >= (3, 12)) correctly uses condition= with boolean expression; others are invalid syntax or wrong logic.

  4. Final Answer:

    @pytest.mark.xfail(condition=sys.version_info >= (3, 12)) -> Option A

  5. Quick Check:

    Use condition= for conditional xfail [OK]
Quick Trick: Use condition= to apply xfail conditionally [OK]
Common Mistakes:
MISTAKES
  • Passing condition as positional argument
  • Using lambda instead of boolean expression
  • Using wrong condition logic

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