PyTest - Parametrize
Which of the following is the correct way to parametrize a pytest test function with parameters
m and n?Which of the following is the correct way to parametrize a pytest test function with parameters m and n?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Check param names and values
The correct syntax requires a string of parameter names separated by commas and a list of tuples with corresponding values.Step 2: Analyze options
@pytest.mark.parametrize('m,n', [(1, 2), (3, 4)]) correctly uses a string 'm,n' and a list of tuples [(1, 2), (3, 4)]. Options B and C incorrectly format the values. @pytest.mark.parametrize('m', [1, 2]) @pytest.mark.parametrize('n', [3, 4]) uses multiple decorators which is valid but changes the test behavior.Final Answer:
@pytest.mark.parametrize('m,n', [(1, 2), (3, 4)]) -> Option BQuick Check:
Parametrize needs parameter string and list of tuples [OK]
Quick Trick: Use string of params and list of tuples [OK]
Common Mistakes:
MISTAKES- Passing a flat list instead of list of tuples
- Using list of strings instead of a single string for parameters
- Misusing multiple decorators without understanding combinations
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