Various Stuff

TestNG is a testing framework inspired by JUnit but introducing a whole set of new functionalities. Let’s see how to create a sample project which uses a testng.xml configuration file to drive a Test suite TestNG Example Test suite Let’s write a proof of concept Hello World example with TestNG. In order to use it, … Read more

In this tutorial we will learn how to use JUnit assertions. An assertion is one of a number of static methods on the org.junit.jupiter.api.Assertions class. Assertions are used to test a condition that must evaluate to true in order for the test to continue executing. If an assertion fails, the test is halted at the … Read more

In this tutorial we will learn how to create a JUnit 5 project using IntelliJ. We will be at first creating a simple Maven Project, then we will add a basic Class and a JUnit Test for it. Creating an IntelliJ Project: Requirements: Download IntelliJ Community edition from: https://www.jetbrains.com/idea/download/ Install IntelliJ Idea, then launch it: … Read more

JUnit tests are executed using a deterministic (but not obvious) criteria, however it’s possible to define the exact order of Test execution. This tutorial shows how to do it. Even if true unit tests should not rely on a precise order in which they are executed, sometimes it is needed to enforce a specific order … Read more

This tutorial shows how to assert the Console output of a JUnit Test: First of all we need a class which sets the out and err streams to the PrintStream in the @Before and @After callback methods: private final ByteArrayOutputStream out = new ByteArrayOutputStream(); private final ByteArrayOutputStream err = new ByteArrayOutputStream(); private final PrintStream originalOut … Read more