25.17. Summary

Try these first

1. 1.

   What is unit testing?

   Hint

   Think about testing a small piece of code.

2. 2.

   What does JUnit help with?

   Hint

   It's a testing framework.

3. 3.

   What does JUnit facilitate?

   • A framework for debugging
   • A framework for unit testing
   • A design optimization tool

   Hint

   Think about its main purpose.

4. 4.

   True or False: Unit testing is performed by testers in the quality assurance team.

   • True
   • False

   Hint

   Consider who writes and runs the unit tests.

5. 5.

   Create a unit test using JUnit for a simple function that adds two numbers and returns the result. Ensure to handle edge cases.

   Hint

   Start by creating a function that performs the addition.

6. 6.

   You have an application that throws an unexpected error. Describe how you would approach debugging the error systematically.

   Hint

   Think of the steps you would take in a detective investigation.