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Which of the following is the correct way to use pytest.raises as a context manager?

easy🧠 Conceptual Q2 of 15
PyTest - Writing Assertions
Which of the following is the correct way to use pytest.raises as a context manager?
Apytest.raises(ValueError) int('abc')
Bpytest.raises(ValueError, int('abc'))
Cwith pytest.raises(ValueError): int('abc')
Dwith pytest.raises: int('abc')
Step-by-Step Solution
Solution:
  1. Step 1: Recall pytest.raises syntax

    pytest.raises is used as a context manager with the syntax: with pytest.raises(ExceptionType): followed by code that should raise the exception.
  2. Step 2: Check each option's syntax

    with pytest.raises(ValueError): int('abc') correctly uses the context manager syntax. Options A and B misuse the function call syntax. with pytest.raises: int('abc') misses the exception type.
  3. Final Answer:

    with pytest.raises(ValueError): int('abc') -> Option C
  4. Quick Check:

    pytest.raises context manager = with pytest.raises(Exception): [OK]
Quick Trick: Always use 'with pytest.raises(Exception):' for exception tests [OK]
Common Mistakes:
MISTAKES
  • Omitting the exception type in pytest.raises
  • Calling pytest.raises without 'with' keyword
  • Passing code directly as argument instead of inside block

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