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Why might you prefer using custom ids over default numeric IDs in pytest parametrize?

hard🧠 Conceptual Q10 of 15
PyTest - Parametrize
Why might you prefer using custom ids over default numeric IDs in pytest parametrize?
ACustom IDs automatically fix flaky tests
BCustom IDs make tests run faster
CCustom IDs reduce the number of tests run
DCustom IDs improve test report readability and debugging
Step-by-Step Solution
Solution:

  1. Step 1: Understand default numeric IDs

    By default, pytest uses numbers like [0], [1] to identify test cases.

  2. Step 2: Benefits of custom IDs

    Custom IDs give meaningful names, making reports easier to read and failures easier to debug.

  3. Final Answer:

    Custom IDs improve test report readability and debugging -> Option D

  4. Quick Check:

    Custom IDs = better readability and debugging [OK]
Quick Trick: Custom IDs help understand test results quickly [OK]
Common Mistakes:
MISTAKES
  • Thinking IDs affect test speed
  • Assuming IDs fix test issues
  • Believing IDs reduce test count

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