SALESFORCE-PD1 Testing Debugging And Deployment Practice Question
How can a developer inspect the state of a private variable within a class during unit testing?
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
✓
Use the @TestVisible annotation.
@TestVisible allows test classes to access private variables without making them public.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the class to @isTest.
Why it's wrong here
This is for test classes, not the class under test.
- ✓
Use the @TestVisible annotation.
Why this is correct
Safely exposes private members to tests.
- ✗
There is no way to inspect private variables.
Why it's wrong here
@TestVisible exists exactly for this.
- ✗
Make the variable public.
Why it's wrong here
This exposes the variable to the whole org.
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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 Salesforce exam blueprint
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