| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.editors.tests; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.junit.After; |
| import org.junit.Test; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| import org.eclipse.jface.preference.PreferenceStore; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| |
| import org.eclipse.ui.texteditor.ChainedPreferenceStore; |
| |
| public class ChainedPreferenceStoreTest { |
| |
| private class PropertyChangeListener implements IPropertyChangeListener { |
| |
| @Override |
| public void propertyChange(PropertyChangeEvent event) { |
| fEvents.add(event); |
| } |
| } |
| |
| private List<PropertyChangeEvent> fEvents= new ArrayList<>(); |
| private PropertyChangeListener fPropertyChangeListener= new PropertyChangeListener(); |
| |
| private static final String PROPERTY= "some.property"; |
| private static final String VALUE= "8"; |
| private static final String DEFAULT_VALUE= "4"; |
| private static final String DEFAULT_DEFAULT_VALUE= ""; |
| |
| @After |
| public void tearDown() { |
| TestUtil.cleanUp(); |
| } |
| |
| /** |
| * [implementation] ChainedPreferenceStore |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=69419 |
| */ |
| @Test |
| public void testChainedStore0() { |
| IPreferenceStore store1= new PreferenceStore(); |
| IPreferenceStore store2= new PreferenceStore(); |
| IPreferenceStore chainedStore= new ChainedPreferenceStore(new IPreferenceStore[] { store1, store2 }); |
| store2.setDefault(PROPERTY, DEFAULT_VALUE); |
| |
| chainedStore.addPropertyChangeListener(fPropertyChangeListener); |
| store1.firePropertyChangeEvent(PROPERTY, VALUE, DEFAULT_DEFAULT_VALUE); // simulated removal with newValue != null |
| chainedStore.removePropertyChangeListener(fPropertyChangeListener); |
| |
| assertEquals(1, fEvents.size()); |
| PropertyChangeEvent event= fEvents.get(0); |
| assertEquals(chainedStore, event.getSource()); |
| assertEquals(PROPERTY, event.getProperty()); |
| assertEquals(VALUE, event.getOldValue()); |
| assertEquals(DEFAULT_VALUE, event.getNewValue()); |
| } |
| |
| /** |
| * Assertion failed in ChainedPreferenceStore.handlePropertyChangeEvent(..) |
| * https://bugs.eclipse.org/bugs/show_bug.cgi?id=52827 |
| */ |
| @Test |
| public void testChainedStore1() { |
| IPreferenceStore store1= new PreferenceStore(); |
| IPreferenceStore store2= new PreferenceStore(); |
| IPreferenceStore chainedStore= new ChainedPreferenceStore(new IPreferenceStore[] { store1, store2 }); |
| |
| chainedStore.addPropertyChangeListener(fPropertyChangeListener); |
| store1.firePropertyChangeEvent(PROPERTY, VALUE, DEFAULT_DEFAULT_VALUE); // simulated removal with newValue != null |
| chainedStore.removePropertyChangeListener(fPropertyChangeListener); |
| |
| assertEquals(1, fEvents.size()); |
| PropertyChangeEvent event= fEvents.get(0); |
| assertEquals(store1, event.getSource()); |
| assertEquals(PROPERTY, event.getProperty()); |
| assertEquals(VALUE, event.getOldValue()); |
| assertEquals(DEFAULT_DEFAULT_VALUE, event.getNewValue()); |
| } |
| |
| /** |
| * Third case where the initial implementation used to have an assertion which would fail in this case |
| */ |
| @Test |
| public void testChainedStore2() { |
| IPreferenceStore store1= new PreferenceStore(); |
| IPreferenceStore store2= new PreferenceStore(); |
| IPreferenceStore chainedStore= new ChainedPreferenceStore(new IPreferenceStore[] { store1, store2 }); |
| store1.setValue(PROPERTY, VALUE); |
| |
| chainedStore.addPropertyChangeListener(fPropertyChangeListener); |
| store1.firePropertyChangeEvent(PROPERTY, DEFAULT_VALUE, null); // simulated change with newValue == null |
| chainedStore.removePropertyChangeListener(fPropertyChangeListener); |
| |
| assertEquals(1, fEvents.size()); |
| PropertyChangeEvent event= fEvents.get(0); |
| assertEquals(store1, event.getSource()); |
| assertEquals(PROPERTY, event.getProperty()); |
| assertEquals(DEFAULT_VALUE, event.getOldValue()); |
| assertEquals(null, event.getNewValue()); |
| } |
| |
| /** |
| * Case where the initial implementation used to throw an IAE |
| */ |
| @Test |
| public void testChainedStore3() { |
| IPreferenceStore store1= new PreferenceStore(); |
| IPreferenceStore store2= new PreferenceStore(); |
| IPreferenceStore chainedStore= new ChainedPreferenceStore(new IPreferenceStore[] { store1, store2 }); |
| store2.setDefault(PROPERTY, DEFAULT_VALUE); |
| |
| chainedStore.addPropertyChangeListener(fPropertyChangeListener); |
| store1.firePropertyChangeEvent(PROPERTY, null, null); // simulated removal with oldValue == null |
| chainedStore.removePropertyChangeListener(fPropertyChangeListener); |
| |
| assertEquals(1, fEvents.size()); |
| PropertyChangeEvent event= fEvents.get(0); |
| assertEquals(chainedStore, event.getSource()); |
| assertEquals(PROPERTY, event.getProperty()); |
| assertEquals(null, event.getOldValue()); |
| assertEquals(DEFAULT_VALUE, event.getNewValue()); |
| } |
| } |