Do not unit test bugs

Before getting to the topic of the title let’s have a simple programming sample. On the programming task I will…

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Challenging Myself With Coplien’s Why Most Unit Testing is Waste

James O. Coplien has written in 2014 the thought-provoking essay Why Most Unit Testing is Waste and further elaborates the topic…

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Testing System.in and System.out with system-rules

Writing unit tests is an integral part of software development. One problem you have to solve when your class under…

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Separating Integration Tests from Unit Tests Using Maven Failsafe & JUnit @Category

Why Unit Tests Should Run Separately From Integration Tests TDD at the Unit Testing level is fairly straight-forward, since classes in unit…

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Given When Then in Java

tl;dr you can use labels to clarify a given-when-then style of testing. What is given-when-then? given-when-then is a commonly used…

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Advanced Creation of Hamcrest Matchers

Intro Last time, I went over what a Hamcrest Matcher was, how it’s used, and how to make one. In…

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Redesigning Hamcrest

I’ve done a few posts on the Hamcrest library, and I really do enjoy using it, but there are a…

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Testing with files and directories in JUnit with @Rule

Testing with Files and directories in JUnit is easy thanks to TemporaryFolder @Rule. In JUnit rules (@Rule) can be used…

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Book Review: Mockito Essentials

The subtitle of Sujoy Acharya‘s Mockito Essentials (Packt Publishing, October 2014) is: “A practical guide to get you up and…

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