Hello everyone,
Today I want share a tutorial which explains unit testing with the JUnit 5 framework (JUnit Jupiter). It explains the creation of JUnit 5 tests with the Maven and Gradle build system. After reading it, you will definitely gain something new.
Here is the link:
https://www.vogella.com/tutorials/JUnit/article.html
“JUnit 5 tutorial – Learn how to write unit tests”
By Vogella GmbH
As a new software testing student, I recently stumbled upon the JUnit tutorial on the Vogella website while browsing for some knowledge about software testing. In this blog post, I will share my insights and discuss how this can help This knowledge is applied to our development practices.
This tutorial can be said to be a comprehensive guide that covers various details of JUnit. Including “What is software testing”, “Using Maven in the Eclipse IDE”, “Using the Eclipse IDE for creating and running JUnit test”, “JUnit 5 extensions” and so on. In chapters 1.2 and 1.3 of the article, it demonstrates how to use “assert” to check expected and actual results. Because “assert” is a powerful function, it contains almost all the judgments required by the scenario, so being proficient in the “assert” function is necessary as a software tester. Also, in Chapter 1.5 and 1.6, the article talks about unit tests are created in a separate source folder to keep the test code separate from the real code. This is the problem I started to encounter in HW1, my Gitpod cannot idenify all my Junit5 command. Because my test code and the real code are in the same path. So we should have a main path and a test path, as follows:
src/main/java – for Java classes
src/test/java – for test classes
In Chapter 2 of the article it explains how to use Assertions and assumptions. There are also examples of Testing for exceptions and Testing multiple assertions (grouped assertions) with assertAll, which we need to be proficient in and will use in the following assignments.
import static org.junit.jupiter.api.Assertions.assertThrows;
@Test void exceptionTesting() {
// set up user
Throwable exception = assertThrows(IllegalArgumentException.class, () -> user.setAge(“23”));
assertEquals(“Age must be an Integer.”, exception.getMessage());
}
Anyway, that’s why I recommend this tutorial. As a student who has just started learning software testing, I not only need theoretical knowledge about JUnit, I also need examples and explanations of practical application of this knowledge. This tutorial is exactly what we need, high quality and easy to understand. It left a lasting impression on me and I hope everyone will learn something from this tutorial.
From the blog CS@Worcester – Ty-Blog by Tianyuan Wang and used with permission of the author. All other rights reserved by the author.
