This repository contains the code examples of JUnit 5 for the book Mastering Software Testing with JUnit 5, authored by [Boni García] and published by Packt.

These examples cover the main features of JUnit 5, such as:

• JUnit 5 tests lifecycle.
• Assertions.
• Tagging and filtering tests.
• Conditional test execution.
• Nested and repeated tests.
• Migration from JUnit 4.
• Dependency injection.
• Dynamic tests.
• Test interfaces.
• Test templates.
• Parameterized tests.
• Parallel execution.
• Ordered tests.

Moreover, the integration with third-party technologies is also illustrated with examples, concretely:

• Mockito (popular mock framework).
• Spring (Java framework aimed to created enterprise applications based on dependency injection).
• Docker (container platform technology).
• Selenium WebDriver (test automation library for web applications).
• Appium (test automation library for mobile devices).
• Android (open source mobile operating system based on Linux).
• REST services (using REST Assured, Retrofit2, or WireMock).

JUnit 5 versions

This repository has different tags, one per minor version of JUnit 5. Currently, the available tags are the following:

• 5.0: Examples using JUnit 5.0.3. The examples of the book Mastering Software Testing with JUnit 5 are based on this version.
• 5.1: Examples using JUnit 5.1.1.
• 5.2: Examples using JUnit 5.2.0.
• 5.3: Examples using JUnit 5.3.2.
• 5.4: Examples using JUnit 5.4.2.
• 5.5: Examples using JUnit 5.5.2.
• 5.6: Examples using JUnit 5.6.3.
• 5.7: Examples using JUnit 5.7.2.
• 5.8: Examples using JUnit 5.8.2.

Complete example

The project Rate my cat! contains a sample web application based on Spring Boot (Spring MVC, Thymeleaf, and Spring Data JPA) with a complete set of JUnit 5 tests (unit with Mockito, integration with Spring, and end-to-end tests with Selenium).

About

Mastering JUnit 5 (Copyright © 2017-2023) is a project created and maintained by Boni Garcia and licensed under the terms of the Apache 2.0 License.

If you like my work, please consider nominating me for the GitHub Stars program.