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Which of the following best describes the order in which pytest applies multiple @pytest.mark.parametrize decorators?

easy🧠 Conceptual Q2 of 15
PyTest - Parametrize
Which of the following best describes the order in which pytest applies multiple @pytest.mark.parametrize decorators?
AOnly the last decorator is applied, earlier ones are ignored.
BThe decorators are applied randomly, so test order is unpredictable.
CThe decorators are applied from bottom to top, reversing parameter order.
DThe decorators are applied from top to bottom, creating combinations accordingly.
Step-by-Step Solution
Solution:
  1. Step 1: Identify decorator application order

    Python applies decorators from top to bottom as they appear in code.
  2. Step 2: Understand pytest parameter combination

    pytest combines parameters in the order decorators are applied, so top decorator parameters vary slowest.
  3. Final Answer:

    The decorators are applied from top to bottom, creating combinations accordingly. -> Option D
  4. Quick Check:

    Decorator order = top to bottom application [OK]
Quick Trick: Decorators apply top to bottom, parameters combine in that order [OK]
Common Mistakes:
MISTAKES
  • Assuming random or reversed order
  • Thinking only last decorator applies
  • Confusing decorator order with test execution order

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