Parameterized tests in JUnit 5 enable you to run a test multiple times with different parameters. It helps the developers to save time in writing and executing the tests. We can write JUnit 5 parameterized tests just like regular JUnit 5 tests but have to use the @ParameterizedTest annotation instead. In a parameterized test, you […]Continue reading
A Spring Boot RESTful service is typically divided into three layers: Repository, Service, and Controller. This layering helps to segregate the RESTful application responsibilities and enabling loose coupling between the objects. When you develop a layered RESTful application, you will also need to test the different layers. In this post, I will discuss testing Spring […]Continue reading
So your JUnit 5 tests are not running under Maven? You have JUnit 5 Tests which run fine from your IDE, but fail to run under Maven? Your test output looks like this: [INFO] ——————————————————- [INFO] T E S T S [INFO] ——————————————————- [INFO] [INFO] Results: [INFO] [INFO] Tests run: 0, Failures: 0, Errors: 0, […]Continue reading
I have met many developers who refer to tests as “Unit Tests” when they are actually integration tests. In service layers, I’ve seen tests referred to as unit tests, but written with dependencies on the actual service, such as a database, web service, or some message server. Those are part of integration testing. Even if […]Continue reading
Unit tests should be small tests (atomic), lightweight, and fast. However, an object under test might have dependencies on other objects. It might need to interact with a database, communicate with a mail server, or talk to a web service or a message queue. All these services might not be available during unit testing. Even […]Continue reading
In this series on unit testing with JUnit, we learned several unit testing aspects and how to implement them with JUnit. We can summarize the series till now as: Part 1: Creating a basic unit test both using Maven and IntelliJ Part 2: Using assertions and annotations Part 3: Using assertThat with Hamcrest matchers In this […]Continue reading
In this series on unit testing with JUnit, we started with JUnit tests both using Maven and IntelliJ in the first part. In the second part, we learned about assertions, JUnit 4 annotations, and test suites. In this post, we will cover assertThat, a more expressive style of assertion that uses Hamcrest matchers. Assertions with […]Continue reading
In the first part of the series on unit testing with JUnit, we looked at creating unit tests both using Maven and IntelliJ. In this post, we will look at some core unit testing concepts and apply those using JUnit constructs. We will learn about assertions, JUnit 4 annotations, and test suites. JUnit Assertions Assertions, […]Continue reading
In the first part of this tutorial series on creating a web application using Spring Boot, I showed how to use Spring Initializr to create the Maven project we’re using in this example. In the second part of the tutorial series, I showed you how to configure Spring MVC and ThymeLeaf templates to display a basic […]Continue reading
Unit testing is the first level of testing software where you write test code that executes a specific functionality in the code to be tested. In most cases, you as a programmer are responsible to deliver unit tested code. The objective is to check if the unit of the software, for example a public method […]Continue reading
