PCPP2 Software Testing Practice Question
When using 'unittest.mock.MagicMock', what happens when you access an attribute that hasn't been defined?
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
✓
It returns a new MagicMock instance.
MagicMock instances automatically create new MagicMock objects when you access previously undefined attributes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It returns None.
Why it's wrong here
It does not default to None.
- ✗
It returns the string 'undefined'.
Why it's wrong here
There is no such default behavior.
- ✗
It raises an AttributeError.
Why it's wrong here
That would happen with a Mock(spec=...) or non-Magic mock.
- ✓
It returns a new MagicMock instance.
Why this is correct
This allows for recursive chaining of mocks.
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.