Bug 327980 Part activation history should not be perspective-dependent
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
assertNull(partService.createSharedPart("partId"));
	}
	public void testCreateSharedPart_ForceFalse() {
		MApplication application = createApplication(1, new String[1][0]);
		MPartDescriptor partDescriptor = org.eclipse.e4.ui.model.application.descriptor.basic.impl.BasicFactoryImpl.eINSTANCE
				.createPartDescriptor();
		partDescriptor.setElementId("partId");
		application.getDescriptors().add(partDescriptor);
		MWindow window = application.getChildren().get(0);
		getEngine().createGui(window);
		EPartService partService = (EPartService) window.getContext().get(
				EPartService.class.getName());
		MPlaceholder placeholderA = partService.createSharedPart("partId",
				false);
		MPlaceholder placeholderB = partService.createSharedPart("partId",
				false);
		assertEquals(1, window.getSharedElements().size());
		MPart part = (MPart) window.getSharedElements().get(0);
		assertEquals(part, placeholderA.getRef());
		assertEquals(part, placeholderB.getRef());
	}
	public void testCreateSharedPart_ForceTrue() {
		MApplication application = createApplication(1, new String[1][0]);
		MPartDescriptor partDescriptor = org.eclipse.e4.ui.model.application.descriptor.basic.impl.BasicFactoryImpl.eINSTANCE
				.createPartDescriptor();
		partDescriptor.setElementId("partId");
		application.getDescriptors().add(partDescriptor);
		MWindow window = application.getChildren().get(0);
		getEngine().createGui(window);
		EPartService partService = (EPartService) window.getContext().get(