Modular Programming in Java 9

Integrating with JUnit

While writing classes with main methods can get the job done with unit testing, we can do better. You typically write tests in Java using a framework such as JUnit. JUnit is a complete testing framework with handy life cycle hooks and annotations that you can use to write tests easily. Let's look at converting our test module to use JUnit.

Here are the steps:

1. Get the JUnit jars. You can either download them from the JUnit website (http://junit.org/junit4/) or download them from Maven Central. It also has a dependency on the hamcrest core JAR file, so download that too. Place the JARs in a lib folder. We intend to add this location to the module path. The downloaded JAR files are available in the lib folder at 12-build-tools-and-testing/02-testing/src/packt.sortutil.test ...