l If you are running your JUnit 4 tests with a JUnit 3.x runner, write a suite() method that uses the JUnit4TestAdapter class to create a suite containing all of your test methods:

JUnit Cookbook

Kent Beck, Erich Gamma

Simple Test Case

When you need to test something, here is what you do:

1. Annotate a method with @org.junit.Test
2. When you want to check a value, import org.junit.Assert.* statically, call assertTrue() and pass a boolean that is true if the test succeeds