PCPP2 Software Testing Practice Question
You are refactoring a legacy module and want to use 'pytest' to check if a function raises a specific custom exception. Which construct is most idiomatic?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
with pytest.raises(CustomError):
The 'pytest.raises' context manager is the standard way to verify that a block of code raises a specific exception type.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
pytest.catch(CustomError)
Why it's wrong here
This method does not exist in pytest.
- ✗
assert func() == CustomError
Why it's wrong here
This checks return values, not exception raising behavior.
- ✗
with pytest.assert_raises(CustomError):
Why it's wrong here
assert_raises is a unittest style, not pytest.
- ✓
with pytest.raises(CustomError):
Why this is correct
pytest.raises is the correct context manager for exception testing.
About these practice questions
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP2 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP2 exam.