Bird
0
0

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
You want to test a Spring Boot service method that returns null sometimes. Which approach best ensures your test catches this case?
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:
  1. Step 1: Understand the method behavior

    The method can return null sometimes, so tests must handle both null and valid results.
  2. 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.
  3. Final Answer:

    Write a test that checks for both null and valid return values. -> Option C
  4. Quick Check:

    Test all cases including null = best practice [OK]
Quick Trick: Test all possible return values including null [OK]
Common Mistakes:
  • Ignoring null return cases in tests
  • Assuming method never returns null
  • Skipping tests for edge cases

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Spring Boot Quizzes