Gain insights into unit testing with JUnit 5. Learn about assertions, assumptions, nested and parameterized tests, advanced JUnit 5 concepts, and integrating tests with Maven and Gradle.

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junit5.tar.gz

mvn clean test

Unit Testing is a basic and essential skill to learn for any developer. In this course, you will learn what unit tests are, why they are important, and how to test your Java applications using the JUnit 5 Framework —  the most popular unit testing framework in the market for Java developers.

You will start with the fundamentals of Unit Testing and JUnit 5 and then gradually you will dive deep into the core concepts like assertions, assumptions, different types of tests like nested tests, parameterized tests, repeated tests, and more.

You will also learn some advanced concepts of JUnit 5 like the JUnit 5 extension model, dependency injection, how to migrate existing unit tests from JUnit 4 to JUnit 5, and how to integrate your unit tests with Maven and Gradle.

Unit Testing Java Applications using JUnit 5

# What is JUnit 5?

**JUnit 5** is a popular Unit Testing Framework that helps Java developers to unit test their code.

JUnit was originally developed by Kent Beck and Erich Gamma in 1997. JUnit 5 is the latest installment of the software.

JUnit 5 was developed because, with the introduction of Java 8 and many new language features, a modern and flexible unit testing framework was needed.

# Supported Java versions

JUnit 5 is a complete rewrite of JUnit 4, and it supports Java 8 and newer versions.

# JUnit 5 modules

JUnit 5 is composed of several different modules, such as:

- JUnit Jupiter
- JUnit Platform
- JUnit Vintage





Learn the basics of JUnit 5 and its brief history.

Before We Begin

Introduction to JUnit 5

Junit 5 Core Concepts

Dynamic Tests

Dependency Injection in JUnit 5

JUnit 5 Extensions

Migrating from Junit 4 to Junit 5

Appendix

BONUS: Useful Assertion Libraries

Conclusion

Introduction to JUnit 5

What is JUnit 5?