Bug 299529 UI scheduling strategy causes injections to be delayed
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/ESelectionServiceTest.java
window.getChildren().add(partA);
		MPart partB = MApplicationFactory.eINSTANCE.createPart();
		window.getChildren().add(partB);
		MPart partC = MApplicationFactory.eINSTANCE.createPart();
		partC.setId("partC");
		window.getChildren().add(partC);
		window.setSelectedElement(partA);
		initialize(applicationContext, application);
		getEngine().createGui(window);
		final IEclipseContext partContextA = partA.getContext();
		IEclipseContext partContextB = partB.getContext();
		final IEclipseContext partContextC = partC.getContext();
		final TrackingProviderPart partOneImpl = new TrackingProviderPart();
		ContextInjectionFactory.inject(partOneImpl, partContextA);
		ConsumerPart partTwoImpl = new ConsumerPart();
		ContextInjectionFactory.inject(partTwoImpl, partContextB);
		ProviderPart partThreeImpl = new ProviderPart();
		ContextInjectionFactory.inject(partThreeImpl, partContextC);
		Object selection = new Object();
		Object selection2 = new Object();
		Object selection3 = new Object();
		partOneImpl.setSelection(selection);
		partThreeImpl.setSelection(selection2);
		assertEquals(selection, partOneImpl.input);
		assertNull(partOneImpl.otherSelection);
		assertNull(partTwoImpl.input);
		assertEquals(selection2, partThreeImpl.input);
		ESelectionService selectionService = (ESelectionService) partContextA
				.get(ESelectionService.class.getName());
		selectionService.addSelectionListener(partC.getId(),