JUnitExample

Import the JUnitExample project in Eclipse and let's see what we have there:

• tests is a separated source folder, this is a good practice. If we use the same package name we can access and test protected methods
• @Test is the annotation to be included before the test method. The method can have any name you want
• We test normal cases and those that we think that can be problematic (e.g. addition overflow)
• Test suits (MyTestSuite.java) can group tests
• Right click a test method, a test java file or a test suite -> Run as... -> JUnit Test
• In the ReverseTest.java there are some commented lines. Uncomment them to see the effect of the annotations @BeforeClass @AfterClass @After @Before . Those are important when dealing with time or resource consuming tasks (e.g. database connections) that need to be done before or after running the tests
• JUnit do not impose a way to structure your tests, you can have test classes for each class under test, or one test class for each method or other ways depending on the case