PyTest - Markers
You want to mark a test that should be skipped on Windows and expected to fail on Python versions below 3.7. Which is the correct way to combine
skipif and xfail markers?You want to mark a test that should be skipped on Windows and expected to fail on Python versions below 3.7. Which is the correct way to combine skipif and xfail markers?
hard📝 framework Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand marker order and logic
Tests should be skipped on Windows unconditionally, soskipiffor Windows must be applied first.Step 2: Apply xfail conditionally for Python versions below 3.7
Thexfailmarker is applied second to mark expected failures on old Python versions.Step 3: Verify option correctness
@pytest.mark.skipif(sys.platform == 'win32', reason='Skip on Windows')\n@pytest.mark.xfail(sys.version_info < (3,7), reason='Expected fail on old Python')\ndef test_func(): pass appliesskipiffirst, thenxfail, both with reasons. This is the correct and clear approach.Final Answer:
Use skipif for Windows, then xfail for Python version condition with reasons. -> Option CQuick Check:
Skip first, then xfail with reasons = B [OK]
Quick Trick: Apply skipif first, then xfail with clear reasons [OK]
Common Mistakes:
MISTAKES- Reversing marker order causing unexpected runs
- Combining conditions incorrectly in one skipif
- Omitting reason strings for markers
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