Bug 322403 Showing a shared part with PartState.VISIBLE may not work correctly due to incorrect parent comparisons
We check the parents of the active part against the part-to-be-shown to determine how to respond when PartState.VISIBLE is used but the check is always 'true' for shared parts because getParent() returns 'null' for both parts. This is obviously wrong. We need to update the code to consider placeholders.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
}
	public void testSaveAll_NoHandler_TFF() {
		testSaveAll_NoHandler(true, false, false);
	}
	public void testSaveAll_NoHandler_FTT() {
		testSaveAll_NoHandler(false, true, true);
	}
	public void testSaveAll_NoHandler_FTF() {
		testSaveAll_NoHandler(false, true, false);
	}
	public void testSaveAll_NoHandler_FFT() {
		testSaveAll_NoHandler(false, false, true);
	}
	public void testSaveAll_NoHandler_FFF() {
		testSaveAll_NoHandler(false, false, false);
	}
	private void testSaveAll_NoHandlers(boolean confirm, boolean[] beforeDirty,
			boolean[] afterDirty, boolean success, boolean[] saveCalled,
			boolean[] throwException) {
		MApplication application = ApplicationFactoryImpl.eINSTANCE
				.createApplication();
		MWindow window = BasicFactoryImpl.eINSTANCE.createWindow();
		application.getChildren().add(window);
		final MPart saveablePart = createSaveablePart(window, beforeDirty[0]);
		final MPart saveablePart2 = createSaveablePart(window, beforeDirty[1]);
		
		initialize(applicationContext, application);
		getEngine().createGui(window);
		ClientEditor editor = (ClientEditor) saveablePart.getObject();
		editor.setThrowException(throwException[0]);