Time for action – writing a plug-in test

Although Java projects and Java plug-in projects both use Java and JUnit to execute, plug-ins typically need to have access provided by the runtime platform, which is only available if running in an OSGi or Eclipse environment.

1. Create a new plug-in project called com.packtpub.e4.junit.plugin.

2. Create a new JUnit test called PlatformTest in the com.packtpub.e4.junit.plugin package.

3. Create a method, testPlatform, which ensures that the Platform is running:

   @Test
   public void testPlatform() {
     assertTrue(Platform.isRunning());
   }

4. Click on the quick-fix to add org.junit to the required bundles.

   1. Alternatively, open up the project's manifest by right-clicking on it and choosing Plug-in Tools | Open Manifest.

   2. Go to the Dependencies tab, click on Add, and select org.junit from the dialog.

   3. Ensure that org.eclipse.core.runtime is also added as a dependency.

5. Run the test by right-clicking on the project, choosing Run As | JUnit Test and seeing the error message fail with...