This tutorial explains the use of JUnit in your project unit testing, while working with Java. After completing this tutorial you will gain sufficient knowledge in using JUnit testing framework from where …

JUnit is a unit testing framework for Java programming language. It plays a crucial role test-driven development, and is a family of unit testing frameworks collectively known as xUnit.

Let us now have a basic example to demonstrate the step-by-step process of using JUnit.

What is JUnit ? JUnit is a unit testing framework for Java programming language. It plays a crucial role test-driven development, and is a family of unit testing frameworks collectively known as xUnit.

JUnit is a Regression Testing Framework used by developers to implement unit testing in Java, and accelerate programming speed and increase the quality of code.

Features of JUnit JUnit is an open source framework, which is used for writing and running tests. Provides annotations to identify test methods. Provides assertions for testing expected results. …

These annotations in JUnit provide the following information about test methods − which methods are going to run before and after test methods. which methods run before and after all the methods, and. …

JUnit 4 has introduced a new feature called parameterized tests. Parameterized tests allow a developer to run the same test over and over again using different values. There are five steps that you need to …

In JUnit, both @RunWith and @Suite annotations are used to run the suite tests. This chapter takes an example having two test classes, TestJunit1 & TestJunit2, that run together using Test Suite.

The test cases are executed using JUnitCore class. JUnitCore is a facade for running tests. It supports running JUnit 4 tests, JUnit 3.8.x tests, and mixtures. To run tests from the command line, run java …