Bug 287103 [CommonNavigator] contentServiceLabelProvider doesn't properly implement overrides
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/SorterTest.java
_viewer.setExpandedState(_project,	true);
		TreeItem[] items = _viewer.getTree().getItems();
		TreeItem addedParent = items[_projectInd].getItem(3);
		_viewer.setExpandedState(addedParent.getData(), true);
		assertEquals("BlueParent", addedParent.getText());
		
		
		assertEquals("BlueChild2", addedParent.getItem(0).getText());
		assertEquals("BlueChild1", addedParent.getItem(1).getText());
	}
	 
	
	
	public void testSorterContentOverrideNoSort() throws Exception {
		waitForModelObjects();
		_contentService.bindExtensions(
				new String[] { TEST_CONTENT_SORTER_MODEL_OVERRIDE_NOSORT }, false);
		_contentService.getActivationService().activateExtensions(
				new String[] { TEST_CONTENT_SORTER_MODEL_OVERRIDE_NOSORT }, false);
		INavigatorContentDescriptor desc = _contentService
				.getContentDescriptorById(TEST_CONTENT_SORTER_MODEL_OVERRIDE);
		
		TestSorterDataAndResource sorter = (TestSorterDataAndResource) _contentService
				.getSorterService().findSorter(desc, _project, null, null);
		sorter._forward = false;
		_viewer.setExpandedState(_project,	true);
		TreeItem[] items = _viewer.getTree().getItems();
		TreeItem addedParent = items[_projectInd].getItem(0);
		_viewer.setExpandedState(addedParent.getData(), true);
		assertEquals("BlueParent", addedParent.getText());