JUnit

JUnit 5 is a software testing framework used by developers to unit test their code. It is a Java-based framework that allows writing and running tests on the Java platform, including an integrated reporter that displays the test results. JUnit can be used for automation testing for two main purposes: Test that the software is working as it is expected to work Find and report errors in the code and fix them as quickly as possible In this blog, we…

In the realm of software development, particularly in Java programming, testing frameworks are essential tools that help ensure the reliability, efficiency, and quality of code. Two of the most prominent testing frameworks for Java are TestNG and JUnit. Both frameworks have their strengths, weaknesses, and unique features, making them suitable for different testing needs. This article aims to provide a comprehensive comparison between TestNG and JUnit, exploring their features, advantages, limitations, and use cases. Overview of TestNG TestNG, inspired by…

The code testabilities guarantee several excellent points in an efficient code design, such as maintainability; it helps with the documentation and makes it easier to refactor and build an evolutionary design/architecture. There is no doubt about it, but what is a good test stack to start a project? This video will explain the minimum test stack to start your project with Java. The first point to understand when we talk about the minimum is that there are no silver bullets…

Parameterized tests allow developers to efficiently test their code with a range of input values. In the realm of JUnit testing, seasoned users have long grappled with the complexities of implementing these tests. But with the release of JUnit 5.7, a new era of test parameterization enters, offering developers first-class support and enhanced capabilities. Let’s delve into the exciting possibilities that JUnit 5.7 brings to the table for parameterized testing! Parameterization Samples From JUnit 5.7 Docs Let’s see some examples…

Code coverage is a software quality metric commonly used during the development process that let’s you determine the degree of code that has been tested (or executed). To achieve optimal code coverage, it is essential that the test implementation (or test suites) tests a majority percent of the implemented code. There are a number of code coverage tools for languages like Java, C#, JavaScript, etc. Using the best-suited code coverage tool is important to understand the percentage of code tested…

Unit testing has become a standard part of development. Many tools can be utilized for it in many different ways. This article demonstrates a couple of hints or, let’s say, best practices working well for me. In This Article, You Will Learn How to write clean and readable unit tests with JUnit and Assert frameworks How to avoid false positive tests in some cases What to avoid when writing unit tests Don’t Overuse NPE Checks We all tend to avoid…

BankNext’s massive production environment has more than 300 live microservices. Multiple squads working concurrently on these SVCs heightens the risk of breaking functionality. Adding JUnits and code coverage manually to existing and new code is arduous and painfully slow. Challenges With Manual JUnits Time-intensive activity to write proper useful JUnits manually. Lacks standardization because each one takes different approaches. Deficient/incorrect JUnits are created due to lack of time. Manual sync-up of existing JUnits due to changing code is impractical. Writing…

We’re building a Google Photos clone, and testing is damn hard!  How do we test that our Java app spawns the correct ImageMagick processes or that the resulting thumbnails are the correct size and indeed thumbnails, not just random pictures of cats? How do we test different ImageMagick versions and operating systems?  What’s in the Video 00:00 Intro  We start the video with a general overview of what makes testing our Google Photos clone so tricky. As in the last episode,…

After JUnit 5 was released, a lot of developers just added this awesome new library to their projects, because unlike other versions, in this new version, it is not necessary to migrate from JUnit 4 to 5, you just need to include the new library in your project, and with all the engine of JUnit 5 you can do your new tests using JUnit 5, and the older one with JUnit 4 or 3, will keep running without problem.  But…