| /******************************************************************************* |
| * Copyright (c) 2006, 2009 Matthew and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Brad Reynolds - initial API and implementation |
| * (through UnmodifiableObservableListTest.java) |
| * Matthew Hall - bugs 208332, 213145, 237718 |
| * Ovidio Mallo - bug 247741 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.tests.internal.databinding.observable; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import junit.framework.Test; |
| import junit.framework.TestSuite; |
| |
| import org.eclipse.core.databinding.observable.Diffs; |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.IObservableCollection; |
| import org.eclipse.core.databinding.observable.Observables; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.observable.set.ObservableSet; |
| import org.eclipse.core.databinding.observable.set.WritableSet; |
| import org.eclipse.core.internal.databinding.observable.UnmodifiableObservableSet; |
| import org.eclipse.jface.databinding.conformance.ObservableCollectionContractTest; |
| import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate; |
| import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker; |
| import org.eclipse.jface.databinding.conformance.util.SetChangeEventTracker; |
| import org.eclipse.jface.databinding.conformance.util.StaleEventTracker; |
| import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase; |
| |
| public class UnmodifiableObservableSetTest extends AbstractDefaultRealmTestCase { |
| UnmodifiableObservableSet unmodifiable; |
| MutableObservableSet mutable; |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| Set set = new HashSet(); |
| set.add("1"); |
| set.add("2"); |
| |
| mutable = new MutableObservableSet(set, String.class); |
| unmodifiable = (UnmodifiableObservableSet) Observables |
| .unmodifiableObservableSet(mutable); |
| } |
| |
| public void testFiresChangeEvents() throws Exception { |
| ChangeEventTracker mutableListener = new ChangeEventTracker(); |
| ChangeEventTracker unmodifiableListener = new ChangeEventTracker(); |
| |
| mutable.addChangeListener(mutableListener); |
| unmodifiable.addChangeListener(unmodifiableListener); |
| |
| assertEquals(0, mutableListener.count); |
| assertEquals(0, unmodifiableListener.count); |
| mutable.add("3"); |
| assertEquals(1, mutableListener.count); |
| assertEquals(1, unmodifiableListener.count); |
| } |
| |
| public void testFiresSetChangeEvents() throws Exception { |
| SetChangeEventTracker mutableListener = new SetChangeEventTracker(); |
| SetChangeEventTracker unmodifiableListener = new SetChangeEventTracker(); |
| |
| mutable.addSetChangeListener(mutableListener); |
| unmodifiable.addSetChangeListener(unmodifiableListener); |
| |
| assertEquals(0, mutableListener.count); |
| assertEquals(0, unmodifiableListener.count); |
| |
| String element = "3"; |
| mutable.add(element); |
| assertEquals(1, mutableListener.count); |
| assertEquals(mutable, mutableListener.event.getObservableSet()); |
| assertEquals(1, mutableListener.event.diff.getAdditions().size()); |
| |
| Object addition = mutableListener.event.diff.getAdditions().toArray()[0]; |
| assertEquals(element, addition); |
| assertEquals(3, mutable.size()); |
| |
| assertEquals(1, unmodifiableListener.count); |
| assertEquals(unmodifiable, unmodifiableListener.event.getObservableSet()); |
| assertEquals(1, unmodifiableListener.event.diff.getAdditions().size()); |
| |
| addition = unmodifiableListener.event.diff.getAdditions().toArray()[0]; |
| assertEquals(element, addition); |
| assertEquals(3, unmodifiable.size()); |
| } |
| |
| public void testFiresStaleEvents() throws Exception { |
| StaleEventTracker mutableListener = new StaleEventTracker(); |
| StaleEventTracker unmodifiableListener = new StaleEventTracker(); |
| |
| mutable.addStaleListener(mutableListener); |
| unmodifiable.addStaleListener(unmodifiableListener); |
| |
| assertEquals(0, mutableListener.count); |
| assertEquals(0, unmodifiableListener.count); |
| mutable.setStale(true); |
| assertEquals(1, mutableListener.count); |
| assertEquals(mutable, mutableListener.event.getObservable()); |
| assertTrue(mutable.isStale()); |
| assertEquals(1, unmodifiableListener.count); |
| assertEquals(unmodifiable, unmodifiableListener.event.getObservable()); |
| assertTrue(unmodifiable.isStale()); |
| } |
| |
| public void testIsStale() throws Exception { |
| assertFalse(mutable.isStale()); |
| assertFalse(unmodifiable.isStale()); |
| mutable.setStale(true); |
| assertTrue(mutable.isStale()); |
| assertTrue(unmodifiable.isStale()); |
| } |
| |
| private static class MutableObservableSet extends ObservableSet { |
| /** |
| * @param wrappedList |
| * @param elementType |
| */ |
| public MutableObservableSet(Set wrappedSet, Object elementType) { |
| super(wrappedSet, elementType); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.internal.databinding.provisional.observable.list.ObservableList#add(java.lang.Object) |
| */ |
| public boolean add(Object o) { |
| boolean result = wrappedSet.add(o); |
| if (result) |
| fireSetChange(Diffs.createSetDiff(Collections.singleton(o), |
| Collections.EMPTY_SET)); |
| return result; |
| } |
| } |
| |
| public static Test suite() { |
| TestSuite suite = new TestSuite(UnmodifiableObservableSetTest.class.getName()); |
| suite.addTestSuite(UnmodifiableObservableSetTest.class); |
| suite.addTest(ObservableCollectionContractTest.suite(new Delegate())); |
| return suite; |
| } |
| |
| private static class Delegate extends |
| AbstractObservableCollectionContractDelegate { |
| private Object elementType = new Object(); |
| |
| public IObservableCollection createObservableCollection(Realm realm, |
| int elementCount) { |
| IObservableSet backingList = new WritableSet(realm, new HashSet(), |
| elementType); |
| IObservableSet result = new UnmodifiableObservableSetStub( |
| backingList); |
| for (int i = 0; i < elementCount; i++) |
| backingList.add(createElement(result)); |
| return result; |
| } |
| |
| public Object createElement(IObservableCollection collection) { |
| return new Object(); |
| } |
| |
| public Object getElementType(IObservableCollection collection) { |
| return elementType; |
| } |
| |
| public void change(IObservable observable) { |
| UnmodifiableObservableSetStub unmodifiableList = (UnmodifiableObservableSetStub) observable; |
| IObservableSet wrappedList = unmodifiableList.wrappedSet; |
| wrappedList.add(createElement(unmodifiableList)); |
| } |
| } |
| |
| private static class UnmodifiableObservableSetStub extends |
| UnmodifiableObservableSet { |
| IObservableSet wrappedSet; |
| |
| UnmodifiableObservableSetStub(IObservableSet wrappedSet) { |
| super(wrappedSet); |
| this.wrappedSet = wrappedSet; |
| } |
| } |
| } |