1. 20-Jun-15 More About JUnit

2. Test suites A test suite is a group of JUnit tests You can create a test suite in Eclipse as follows: File  New  Other...  Java/JUnit  TestSuite Next > Change the name if you like (default is AllTests ) Select the JUnit tests you want included (default is all) Finish You can run your test suite by selecting AllTests.java (or whatever you named it) and choosing Run  Run as  JUnit Test

3. Sample test suite Here is the code Eclipse generates for a project that I’m currently working on: public class AllTests { public static Test suite() { TestSuite suite = new TestSuite("Test for default package"); suite.addTest(new TestSuite(TokenizerTest.class)); suite.addTest(new TestSuite(NodeTest.class)); suite.addTest(new TestSuite(ParserTest.class)); suite.addTest(new TestSuite(TreeTest.class)); return suite; } } As you can see, this is ordinary Java code You can easily add more tests by writing similar lines of code

4. Testing exceptions If your code should sometimes throw Exceptions, you need to test that it does throw them There are special tests in JUnit for Exceptions However, I think it’s easier just to put code like the following into your test case: try { // call to a method that should throw an Exception fail("Did not throw an ExpectedException"); } catch (ExpectedException e) { }

5. The End