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JUnit 5 TestWatcher API 1. Overview When unit testing, we may, periodically, wish to process the results of our test method executions. In this quick tutorial, we’ll take a look at how we can accomplish this using the TestWatcher API provided by JUnit. For an in-depth guide to testing with… Continue Reading junit-testwatcher
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A Quick JUnit vs TestNG Comparison 1. Overview JUnit and TestNG are undoubtedly the two most popular unit-testing frameworks in the Java ecosystem. While JUnit inspires TestNG itself, it provides its distinctive features, and unlike JUnit, it works for functional and higher levels of testing. In this post, we’ll discuss… Continue Reading junit-vs-testng
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JUnit Custom Display Name Generator API 1. Overview JUnit 5 has good support for customizing test class and test method names. In this quick tutorial, we’ll see how we can use JUnit 5 custom display name generators via the @DisplayNameGeneration annotation. 2. Display Name Generation We can configure custom display… Continue Reading junit-custom-display-name-generator
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Assert an Exception is Thrown in JUnit 4 and 5 1. Introduction In this quick tutorial, we’ll be looking at how to test if an exception was thrown, using JUnit library. Of course, we’ll make sure to cover both the JUnit 4 and JUnit 5 versions. Further reading: The Order… Continue Reading junit-assert-exception
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Assertions in JUnit 4 and JUnit 5 1. Introduction In this article, we’re going to explore in details the assertions available within JUnit. Following the migrating from JUnit 4 to JUnit 5 and A Guide to JUnit 5 articles, we’re now going into details about the different assertions available in… Continue Reading junit-assertions
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JUnit 5 @Test Annotation 1. Overview In this article, we’ll make a quick review of JUnit’s @Test annotation. This annotation provides a powerful tool for performing unit and regression testing. 2. Maven Configuration To use the latest version of JUnit 5, we’ll need to add the following Maven dependency: <dependency>… Continue Reading junit-5-test-annotation
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Inject Parameters into JUnit Jupiter Unit Tests 1. Overview Prior to JUnit 5, to introduce a cool new feature, the JUnit team would have to do it to the core API. With JUnit 5 the team decided it was time to push the capability to extend the core JUnit API… Continue Reading junit-5-parameters
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Mockito and JUnit 5 – Using ExtendWith 1. Introduction In this quick article, we’ll show how to integrate Mockito with the JUnit 5 extension model. To learn more about the JUnit 5 extension model, have a look at this article. First, we’ll show how to create an extension that automatically creates mock… Continue Reading mockito-junit-5-extension
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Guide to Dynamic Tests in Junit 5 1. Overview Dynamic testing is a new programming model introduced in JUnit 5. In this article, we’ll have a look at what exactly dynamic tests are and how to create them. If you’re completely new to JUnit 5, you might want to check… Continue Reading junit5-dynamic-tests
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Introduction to JUnitParams 1. Overview In this article, we’ll explore the JUnitParams library and its usages. Simply put, this library provides easy parameterization of test methods in JUnit tests. There are situations where the only thing that changes between multiple tests are the parameters. JUnit itself has a parameterization support,… Continue Reading junit-params
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