JUnit

Overview In this post, we will briefly discuss some of the new annotations in JUnit 5 Jupiter API. Jupiter API introduced many new annotations in JUnit 5. We will look at some of them here. Jupiter api is used for writing tests. You can find all the classes under the package: org.junit.jupiter.api Sample Listing Enviromnet […]

Overview Let’s learn the steps involved in Testing exceptions using JUnit framework. In this post, we will learn how to test methods that throw exceptions in the code. Testing exceptions is common in automation testing, in unit testing or in testing negative test cases. For example, you try to open a non-existent file with the […]

Introduction In this post, we will discuss some of the differences between JUnit 3 and JUnit 4. The most important difference is that in JUnit 3, we need to extend TestCase (junit.framework.TestCase) to write junit tests. Every method which has the test code in it, should start with testXXXX method. Sample JUnit 3 Listing: package […]

Overview In this post, we will learn how to ignore tests in JUnit. To ignore a test we use @Ignore annotation. @Ignore annotated method would not be executed and would be ignored by JUnit. The method annotated with ignore will be skipped. Sample JUnit Test class package com.testingdocs.junit; import static org.junit.Assert.assertEquals; import static org.junit.Assert.fail; import […]

Introduction In this tutorial, we will learn why inherited tests in JUnit create lot of confusion. Many people tend to inherit test classes for the sake of reusing the annotated code or methods. There are many  drawbacks using this approach. Coupling Tests Together The derived tests tend to run in the frame of the parent […]

Introduction JUnit annotations are used to setUp and tearDown test fixtures. Different annotations in JUnit4 are: @BeforeClass @AfterClass @Before @After   @BeforeClass and @AfterClass @BeforeClass annotated method will be executed once before all the tests in the class. This method would be used to perform one time initialization. On the other hand, @AfterClass annotated method […]