You want to test a Spring Boot service method that returns null sometimes. Which approach best ensures your test catches this case?

hard📝 Application Q15 of 15

Spring Boot - Testing Spring Boot Applications

AWrite a test that asserts the method never returns null.

BSkip testing null cases to avoid test failures.

CWrite a test that checks for both null and valid return values.

DOnly test the method with valid inputs.

Step-by-Step Solution

Solution:

Step 1: Understand the method behavior
The method can return null sometimes, so tests must handle both null and valid results.
Step 2: Choose the best testing approach
Testing only valid inputs or skipping null cases misses bugs. Asserting never null is wrong if null is valid.
Final Answer:
Write a test that checks for both null and valid return values. -> Option C
Quick Check:
Test all cases including null = best practice [OK]

Quick Trick: Test all possible return values including null [OK]

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