PCPP2 Software Testing Practice Question
You need to mock an object that is imported into a module. Which patch strategy correctly replaces the object where it is used?
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
✓
Patch the object at the import location within the module being tested.
You must patch the object in the namespace where it is imported (the destination), not where it is defined, to ensure the replacement takes effect.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a global variable to override the module import.
Why it's wrong here
This is unsafe and not the recommended testing pattern.
- ✓
Patch the object at the import location within the module being tested.
Why this is correct
Patching the lookup target ensures the module uses the mock.
- ✗
Patch the object at its definition location.
Why it's wrong here
Patching at definition does not update existing imports.
- ✗
Modify sys.modules directly.
Why it's wrong here
While possible, it is prone to side effects and discouraged compared to patching.
About these practice questions
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JA
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.