JUnit

Question 1

What is JUnit?

Answer 1

JUnit is a test framework which uses annotations to identify methods that specify a test.

Question 2

What are some of the annotations used in JUnit?

Answer 2

@BeforeAll
@AfterEach
@DisplayName
@Test

Question 3

What is Test Driven Development (TDD)?

Answer 3

Test Driven Development starts with designing and developing tests for every small functionality of an application. The primary goal of TDD is to make the code clearer, simple and bug-free.

Question 4

What is the approach taken in TDD?

Answer 4

In the Test Driven Development (TDD), the test is first developed which specifies and validates what the code will do.

Question 5

Benefits of unit testing?

Answer 5

1. Unit testing increases confidence in changing/maintaining code.
2. Codes are more reusable. To make unit testing possible, codes must be modular.
3. Cost of fixing a defect during unit testing is less than defects detected at higher levels.
4. Debugging becomes easier. When a test fails, only latest changes need to be debugged.

Question 6

What is unit testing?

Answer 6

A level of software testing where individual units of a software are tested.

Question 7

Purpose of unit testing?

Answer 7

The purpose of unit testing is to validate that each unit in the software performs as designed.