| /******************************************************************************* |
| * Copyright (c) 2007, 2009 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.utility.tests.internal.model.value; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.Vector; |
| |
| import junit.framework.TestCase; |
| |
| import org.eclipse.jpt.utility.Filter; |
| import org.eclipse.jpt.utility.internal.CollectionTools; |
| import org.eclipse.jpt.utility.internal.model.AbstractModel; |
| import org.eclipse.jpt.utility.internal.model.value.FilteringCollectionValueModel; |
| import org.eclipse.jpt.utility.internal.model.value.SimpleCollectionValueModel; |
| import org.eclipse.jpt.utility.model.event.CollectionAddEvent; |
| import org.eclipse.jpt.utility.model.event.CollectionChangeEvent; |
| import org.eclipse.jpt.utility.model.event.CollectionClearEvent; |
| import org.eclipse.jpt.utility.model.event.CollectionRemoveEvent; |
| import org.eclipse.jpt.utility.model.listener.ChangeAdapter; |
| import org.eclipse.jpt.utility.model.listener.ChangeListener; |
| import org.eclipse.jpt.utility.model.listener.CollectionChangeListener; |
| import org.eclipse.jpt.utility.model.value.CollectionValueModel; |
| import org.eclipse.jpt.utility.tests.internal.TestTools; |
| |
| @SuppressWarnings("nls") |
| public class FilteringCollectionValueModelTests extends TestCase { |
| private SimpleCollectionValueModel<String> collectionHolder; |
| CollectionAddEvent addEvent; |
| CollectionRemoveEvent removeEvent; |
| CollectionClearEvent collectionClearedEvent; |
| CollectionChangeEvent collectionChangedEvent; |
| |
| private CollectionValueModel<String> filteredCollectionHolder; |
| CollectionAddEvent filteredAddEvent; |
| CollectionRemoveEvent filteredRemoveEvent; |
| CollectionClearEvent filteredCollectionClearedEvent; |
| CollectionChangeEvent filteredCollectionChangedEvent; |
| |
| public FilteringCollectionValueModelTests(String name) { |
| super(name); |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| this.collectionHolder = new SimpleCollectionValueModel<String>(buildCollection()); |
| this.filteredCollectionHolder = new FilteringCollectionValueModel<String>(this.collectionHolder, this.buildFilter()); |
| } |
| |
| private Collection<String> buildCollection() { |
| Collection<String> collection = new Vector<String>(); |
| collection.add("foo"); |
| return collection; |
| } |
| |
| private Filter<String> buildFilter() { |
| return new Filter<String>() { |
| public boolean accept(String s) { |
| return s.startsWith("b"); |
| } |
| }; |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| TestTools.clear(this); |
| super.tearDown(); |
| } |
| |
| public void testIterator() { |
| // add a listener to "activate" the wrapper |
| this.filteredCollectionHolder.addCollectionChangeListener(CollectionValueModel.VALUES, this.buildFilteredListener()); |
| |
| assertEquals("foo", this.collectionHolder.iterator().next()); |
| assertFalse(this.filteredCollectionHolder.iterator().hasNext()); |
| |
| this.collectionHolder.add("bar"); |
| Iterator<String> collectionHolderValue = this.collectionHolder.iterator(); |
| assertEquals("foo", collectionHolderValue.next()); |
| assertEquals("bar", collectionHolderValue.next()); |
| assertTrue(this.filteredCollectionHolder.iterator().hasNext()); |
| assertEquals("bar", this.filteredCollectionHolder.iterator().next()); |
| |
| this.collectionHolder.remove("bar"); |
| assertEquals("foo", this.collectionHolder.iterator().next()); |
| assertFalse(this.filteredCollectionHolder.iterator().hasNext()); |
| |
| this.collectionHolder.remove("foo"); |
| assertFalse(this.collectionHolder.iterator().hasNext()); |
| assertFalse(this.filteredCollectionHolder.iterator().hasNext()); |
| |
| this.collectionHolder.add("foo"); |
| assertEquals("foo", this.collectionHolder.iterator().next()); |
| assertFalse(this.filteredCollectionHolder.iterator().hasNext()); |
| } |
| |
| public void testSetValue() { |
| // add a listener to "activate" the wrapper |
| this.filteredCollectionHolder.addCollectionChangeListener(CollectionValueModel.VALUES, this.buildFilteredListener()); |
| |
| Collection<String> newCollection = new Vector<String>(); |
| newCollection.add("fox"); |
| newCollection.add("baz"); |
| |
| this.collectionHolder.setValues(newCollection); |
| |
| Iterator<String> collectionValues = this.collectionHolder.iterator(); |
| assertEquals("fox", collectionValues.next()); |
| assertEquals("baz", collectionValues.next()); |
| Iterator<String> filteredCollectionValues = this.filteredCollectionHolder.iterator(); |
| assertEquals("baz", filteredCollectionValues.next()); |
| assertFalse(filteredCollectionValues.hasNext()); |
| } |
| |
| public void testLazyListening() { |
| assertTrue(((AbstractModel) this.collectionHolder).hasNoCollectionChangeListeners(CollectionValueModel.VALUES)); |
| ChangeListener listener = this.buildFilteredChangeListener(); |
| this.filteredCollectionHolder.addChangeListener(listener); |
| assertTrue(((AbstractModel) this.collectionHolder).hasAnyCollectionChangeListeners(CollectionValueModel.VALUES)); |
| this.filteredCollectionHolder.removeChangeListener(listener); |
| assertTrue(((AbstractModel) this.collectionHolder).hasNoCollectionChangeListeners(CollectionValueModel.VALUES)); |
| |
| this.filteredCollectionHolder.addCollectionChangeListener(CollectionValueModel.VALUES, listener); |
| assertTrue(((AbstractModel) this.collectionHolder).hasAnyCollectionChangeListeners(CollectionValueModel.VALUES)); |
| this.filteredCollectionHolder.removeCollectionChangeListener(CollectionValueModel.VALUES, listener); |
| assertTrue(((AbstractModel) this.collectionHolder).hasNoCollectionChangeListeners(CollectionValueModel.VALUES)); |
| } |
| |
| public void testCollectionChange1() { |
| this.collectionHolder.addChangeListener(this.buildChangeListener()); |
| this.filteredCollectionHolder.addChangeListener(this.buildFilteredChangeListener()); |
| this.verifyCollectionChanges(); |
| } |
| |
| public void testCollectionChange2() { |
| this.collectionHolder.addCollectionChangeListener(CollectionValueModel.VALUES, this.buildListener()); |
| this.filteredCollectionHolder.addCollectionChangeListener(CollectionValueModel.VALUES, this.buildFilteredListener()); |
| this.verifyCollectionChanges(); |
| } |
| |
| private void clearEvents() { |
| this.addEvent = null; |
| this.removeEvent = null; |
| this.collectionClearedEvent = null; |
| this.collectionChangedEvent = null; |
| this.filteredAddEvent = null; |
| this.filteredRemoveEvent = null; |
| this.filteredCollectionClearedEvent = null; |
| this.filteredCollectionChangedEvent = null; |
| } |
| |
| private void verifyCollectionChanges() { |
| clearEvents(); |
| this.collectionHolder.add("bar"); |
| Collection<String> tempCollection = new Vector<String>(); |
| tempCollection.add("bar"); |
| this.verifyEvent(this.addEvent, this.collectionHolder, tempCollection); |
| this.verifyEvent(this.filteredAddEvent, this.filteredCollectionHolder, tempCollection); |
| |
| clearEvents(); |
| this.collectionHolder.remove("foo"); |
| tempCollection.remove("bar"); |
| tempCollection.add("foo"); |
| this.verifyEvent(this.removeEvent, this.collectionHolder, tempCollection); |
| assertNull(this.filteredRemoveEvent); |
| |
| |
| clearEvents(); |
| this.collectionHolder.remove("bar"); |
| tempCollection.add("bar"); |
| tempCollection.remove("foo"); |
| this.verifyEvent(this.removeEvent, this.collectionHolder, tempCollection); |
| this.verifyEvent(this.filteredRemoveEvent, this.filteredCollectionHolder, tempCollection); |
| |
| |
| clearEvents(); |
| this.collectionHolder.add("foo"); |
| tempCollection.remove("bar"); |
| tempCollection.add("foo"); |
| this.verifyEvent(this.addEvent, this.collectionHolder, tempCollection); |
| assertNull(this.filteredAddEvent); |
| |
| |
| clearEvents(); |
| Collection<String> newCollection = new Vector<String>(); |
| newCollection.add("fox"); |
| newCollection.add("baz"); |
| |
| this.collectionHolder.setValues(newCollection); |
| |
| this.verifyEvent(this.collectionChangedEvent, this.collectionHolder); |
| |
| tempCollection.remove("foo"); |
| tempCollection.add("baz"); |
| this.verifyEvent(this.filteredCollectionChangedEvent, this.filteredCollectionHolder); |
| |
| } |
| |
| private CollectionChangeListener buildListener() { |
| return new CollectionChangeListener() { |
| public void itemsAdded(CollectionAddEvent e) { |
| FilteringCollectionValueModelTests.this.addEvent = e; |
| } |
| public void itemsRemoved(CollectionRemoveEvent e) { |
| FilteringCollectionValueModelTests.this.removeEvent = e; |
| } |
| public void collectionCleared(CollectionClearEvent e) { |
| FilteringCollectionValueModelTests.this.collectionClearedEvent = e; |
| } |
| public void collectionChanged(CollectionChangeEvent e) { |
| FilteringCollectionValueModelTests.this.collectionChangedEvent = e; |
| } |
| }; |
| } |
| |
| private ChangeListener buildChangeListener() { |
| return new ChangeAdapter() { |
| @Override |
| public void itemsAdded(CollectionAddEvent e) { |
| FilteringCollectionValueModelTests.this.addEvent = e; |
| } |
| @Override |
| public void itemsRemoved(CollectionRemoveEvent e) { |
| FilteringCollectionValueModelTests.this.removeEvent = e; |
| } |
| @Override |
| public void collectionCleared(CollectionClearEvent e) { |
| FilteringCollectionValueModelTests.this.collectionClearedEvent = e; |
| } |
| @Override |
| public void collectionChanged(CollectionChangeEvent e) { |
| FilteringCollectionValueModelTests.this.collectionChangedEvent = e; |
| } |
| }; |
| } |
| |
| private CollectionChangeListener buildFilteredListener() { |
| return new CollectionChangeListener() { |
| public void itemsAdded(CollectionAddEvent e) { |
| FilteringCollectionValueModelTests.this.filteredAddEvent = e; |
| } |
| public void itemsRemoved(CollectionRemoveEvent e) { |
| FilteringCollectionValueModelTests.this.filteredRemoveEvent = e; |
| } |
| public void collectionCleared(CollectionClearEvent e) { |
| FilteringCollectionValueModelTests.this.filteredCollectionClearedEvent = e; |
| } |
| public void collectionChanged(CollectionChangeEvent e) { |
| FilteringCollectionValueModelTests.this.filteredCollectionChangedEvent = e; |
| } |
| }; |
| } |
| |
| private ChangeListener buildFilteredChangeListener() { |
| return new ChangeAdapter() { |
| @Override |
| public void itemsAdded(CollectionAddEvent e) { |
| FilteringCollectionValueModelTests.this.filteredAddEvent = e; |
| } |
| @Override |
| public void itemsRemoved(CollectionRemoveEvent e) { |
| FilteringCollectionValueModelTests.this.filteredRemoveEvent = e; |
| } |
| @Override |
| public void collectionCleared(CollectionClearEvent e) { |
| FilteringCollectionValueModelTests.this.filteredCollectionClearedEvent = e; |
| } |
| @Override |
| public void collectionChanged(CollectionChangeEvent e) { |
| FilteringCollectionValueModelTests.this.filteredCollectionChangedEvent = e; |
| } |
| }; |
| } |
| |
| private void verifyEvent(CollectionChangeEvent event, Object source) { |
| assertEquals(source, event.getSource()); |
| assertEquals(CollectionValueModel.VALUES, event.getCollectionName()); |
| } |
| |
| private void verifyEvent(CollectionAddEvent event, Object source, Object items) { |
| assertEquals(source, event.getSource()); |
| assertEquals(CollectionValueModel.VALUES, event.getCollectionName()); |
| assertEquals(items, CollectionTools.vector(event.getItems())); |
| } |
| |
| private void verifyEvent(CollectionRemoveEvent event, Object source, Object items) { |
| assertEquals(source, event.getSource()); |
| assertEquals(CollectionValueModel.VALUES, event.getCollectionName()); |
| assertEquals(items, CollectionTools.vector(event.getItems())); |
| } |
| |
| public void testRemoveFilteredItem() { |
| // build collection with TestItems |
| SimpleCollectionValueModel<TestItem> tiHolder = new SimpleCollectionValueModel<TestItem>(this.buildCollection2()); |
| CollectionValueModel<TestItem> filteredTIHolder = new FilteringCollectionValueModel<TestItem>(tiHolder, this.buildFilter2()); |
| // add a listener to "activate" the wrapper |
| filteredTIHolder.addCollectionChangeListener(CollectionValueModel.VALUES, this.buildFilteredListener()); |
| |
| assertEquals(0, filteredTIHolder.size()); |
| |
| tiHolder.add(new TestItem("bar")); |
| assertEquals(1, filteredTIHolder.size()); |
| |
| TestItem baz = new TestItem("baz"); |
| tiHolder.add(baz); |
| assertEquals(2, filteredTIHolder.size()); |
| // before removing it, change the item so that it is filtered |
| baz.name = "jaz"; |
| tiHolder.remove(baz); |
| // this would fail because the item was not removed from |
| // the filtered collection cache... but we've fixed it now |
| assertEquals(1, filteredTIHolder.size()); |
| } |
| |
| private Collection<TestItem> buildCollection2() { |
| Collection<TestItem> collection = new Vector<TestItem>(); |
| collection.add(new TestItem("foo")); |
| return collection; |
| } |
| |
| private Filter<TestItem> buildFilter2() { |
| return new Filter<TestItem>() { |
| public boolean accept(TestItem ti) { |
| return ti.name.startsWith("b"); |
| } |
| }; |
| } |
| |
| |
| // ********** TestItem inner class ********** |
| |
| private class TestItem { |
| String name; |
| TestItem(String name) { |
| super(); |
| this.name = name; |
| } |
| } |
| |
| } |