Unit testing

Question 1

What is JUnit?
What principle does it follow?
What idea does it support?

Answer 1

It’s an open-source testing framework for Java applications.

Follows TDD principle, where tests are written before the actual code implementation.

It supports the creation of test cases defining expected result & validating the actual result against the expected one.

Question 2

What features does Junit provide?

Answer 2

• framework for org & executing tests
• annotations to identify test methods
• assertions for testing exp. results
• test runners for running tests
• can be org into test suites

Question 3

Unit test case
What does it require to achieve the desired res quickly?

Answer 3

Part of code which ensures that another part of code (method) works as expected.

Requires test framework (ex: JUnit)

Question 4

What is Unit Test Case characterized by?

Answer 4

By a known input & expected output, which is worked out before the test is executed.
The known input should test a pre-condition and the output tests the post-condition

Question 5

Unit Test

Answer 5

A type of software testing where individual units / components of a sw system are tested to ensure proper functionality.

__ are designed to verify that each unit of code performs as expected & produces the desired output given specific input