Intro to JUnit 5

JUnit 5 is the latest version of the popular JUnit testing framework for Java applications. It was released in 2017 and provides a number of new features and improvements over previous versions.

Some of the key features of JUnit 5 include:

• Modular Architecture: JUnit 5 is built with a modular architecture, allowing for more flexible and customizable testing. Test classes, lifecycle methods, and extensions are all part of different modules that can be combined and customized as needed.
• Improved Extensions Model: JUnit 5 introduces a new extensions model, which allows developers to extend the framework and add custom functionality. This new model is more flexible and powerful than the previous extension model, allowing for more complex use cases.
• Parameterized Tests: JUnit 5 provides built-in support for parameterized tests, allowing developers to run the same test with different inputs. This can simplify testing and make it easier to cover different scenarios.
• Nested Tests: JUnit 5 allows for nested tests, allowing developers to group related tests together and create a more organized test suite.
• Assertions Improvements: JUnit 5 provides a new assertAll() method that allows developers to group multiple assertions together and see all failures at once.
• Dynamic Tests: JUnit 5 provides built-in support for dynamic tests, allowing developers to generate tests at runtime based on input data.

Overall, JUnit 5 is a powerful and flexible testing framework that provides a number of new features and improvements over previous versions. It is widely used and supported by a large community of developers, making it a popular choice for testing Java applications.