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How does @pytest.mark.parametrize help increase test coverage?

easy🧠 Conceptual Q2 of 15
PyTest - Parametrize
How does @pytest.mark.parametrize help increase test coverage?
ABy reducing the number of tests to run
BBy running tests with multiple input combinations automatically
CBy skipping tests that are not needed
DBy generating random test data during runtime
Step-by-Step Solution
Solution:

  1. Step 1: Understand test coverage increase

    Test coverage increases when tests run with many input variations, covering more cases.

  2. Step 2: Match parametrize behavior

    Parametrize runs the same test multiple times with different inputs, thus increasing coverage.

  3. Final Answer:

    By running tests with multiple input combinations automatically -> Option B

  4. Quick Check:

    Parametrize increases coverage = multiple inputs [OK]
Quick Trick: More inputs mean more coverage with parametrize [OK]
Common Mistakes:
MISTAKES
  • Believing parametrize reduces tests
  • Thinking parametrize skips tests
  • Assuming parametrize creates random data

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