Testing

Whether behaviour-driven-development, specification by example or acceptance test driven development is the goal, the Cucumber framework eases our life when we need to establish a link between the non-technical, textual description for a new feature and the tests that prove that the application fulfils these requirements. In the following short tutorial I’d like to demonstrate how to add Cucumber to a Java project and how to write feature descriptions and test-cases for each step of these descriptions. ...

Especially when it comes to testing, setting up a decent environment for a secured Java EE web application isn’t always an easy thing to do. In the following tutorial I’d like to demonstrate how to create a secured web application using form-based authentication and a JDBC realm to fetch users and roles and how to run the application in an embedded container for testing and development. Additionally I’d like to show how to write and run integration tests to verify the security setup using a setup of Maven, Embedded GlassFish, Arquillian, jUnit and rest-assured. ...

Sometimes in a project there is the need to run tests for your client-side code, written in JavaScript from a Maven build. One reason might be that Maven manages a complex build life-cycle in your project and you need a close integration for your JavaScript tests, another one might be that you’re in an environment where it is complicated to install and manage additional software like an integration- or build-server. ...

MongoDB is matured, document-oriented, cross-platform NoSQL database system with drivers available for a bunch of different programming languages. In the following short examples I’m going to write some integration tests for MongoDB using the MongoDB Java driver and the Flapdoodle library to create an embedded MongoDB instance for testing. We’re going to write tests for a simple persist-and-query scenarion and for a map-reduce function and in addition I’m going to show how to bind the start and stop of a MongoDB instance to a Maven goal using the embedmongo-maven-plugin. ...

Having tried a bunch of workflow engines and business processing management platforms I now have given the Activiti framework a try. I immediately liked the good test support using annotations and jUnit test rules, a straight API and the good Eclipse IDE integration as well as I liked the Activiti Explorer and the Activiti REST Application and the feeling to achieve quick results with less effort when using this framework. ...

I really love Arquillian to run integration tests for my Java EE applications – especially when running on different containers – and I also love the Arquillian tool stack from Arquillian Drone to the Arquillian Persistence Extensions. Today I’d like to share a short snippet how to achieve transaction rollbacks when testing an EJB in combination with Arquillian and the Arquillian Transaction Extension… Arquillian Basics If you’ve never heard of the Arquillian framework before, please feel free to have a look at the Arquillian documentation or an article of mine: Arquillian Tutorial: Writing Java EE 6 Integration Tests and more... ...

I recently stumbled upon a nice framework that allows to convert simple JUnit tests into micro benchmarks named JUnitBenchmarks. It allows to set basic benchmark options and and to generate charts by adding some simple annotations and a test rule to your tests. One might argue if it is wise to mix the aspects, testing and benchmarking and I’d agree for sure – nevertheless I think this framework can be handy sometimes so let’s create some benchmarks using JUnit and JUnitBenchmarks.. ...

ScalaTest is an excellent framework to write concise, readable tests for your Scala or Java code with less effort. In addition it integrates well with a variety of frameworks like JUnit, TestNG, Ant, Maven, sbt, ScalaCheck, JMock, EasyMock, Mockito, ScalaMock, Selenium, Eclipse, NetBeans, and IntelliJ. In the following short tutorial we’re going to write some tests using ScalaTest exploring features like rich matchers, BDD syntax support or web tests using Selenium/Webdriver. ...

Sometimes we need to classify the tests in a project and a possible solution to achieve this goal is to assign different categories to the tests. Often we’re doing this to separate the execution of fast-running and long-running tests or to run a specific set of tests that is only applicable in special situations. To run a specific set of categorized tests there are different options and in the following tutorial we’ll be covering two of them: by configuring the Maven Surefire Plug-in or by using a JUnit Test Suite and the JUnit annotations. ...

JUnit is one of the most popular testing frameworks out there. Version 4.11 has just been released and offers some nice improvements that you shouldn’t miss. Dependencies In older versions of JUnit there were two dependencies .. junit:junit contained an old version of hamcrest and could cause some nasty trouble .. junit:junit-dep just referenced hamcrest the maven way. Now with version 4.11 there is just junit:junit with clean references to hamcrest and junit:junit-dep is relocated to junit:junit. ...