Bug 294493 XMI definition of part icon is ignored
The icon URI definition for parts seem to be ignored as the part tabs don't have any icons.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/UIStartupTest.java
UIStartupTest.super.testGetFirstPart_GetContext();
			}
		});
	}
	public void testGetSecondPart_GetContext() {
		
		
		Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
			public void run() {
				UIStartupTest.super.testGetSecondPart_GetContext();
			}
		});
	}
	@Override
	public void test_SwitchActivePartsInCode() throws Exception {
		final IEclipseContext context = application.getContext();
		final MPart[] parts = getTwoParts();
		Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
			public void run() {
				parts[0].getParent().setActiveChild(parts[1]);
				while (display.readAndDispatch())
					;
				assertEquals(parts[1].getId(), context
						.get(IServiceConstants.ACTIVE_PART_ID));
				parts[1].getParent().setActiveChild(parts[0]);
				while (display.readAndDispatch())
					;
				assertEquals(parts[0].getId(), context
						.get(IServiceConstants.ACTIVE_PART_ID));
			}