| /******************************************************************************* |
| * Copyright (c) 2007-2008 Brad Reynolds 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 |
| * Matthew Hall - bugs 221351, 213145 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.tests.internal.databinding.beans; |
| |
| import java.beans.IntrospectionException; |
| import java.beans.PropertyDescriptor; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.IObservableCollection; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| import org.eclipse.core.databinding.observable.set.ISetChangeListener; |
| import org.eclipse.core.databinding.observable.set.SetChangeEvent; |
| import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet; |
| import org.eclipse.jface.databinding.conformance.MutableObservableSetContractTest; |
| import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate; |
| import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker; |
| import org.eclipse.jface.databinding.conformance.util.CurrentRealm; |
| import org.eclipse.jface.databinding.swt.SWTObservables; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * @since 3.3 |
| */ |
| public class JavaBeanObservableSetTest extends TestCase { |
| private JavaBeanObservableSet observableSet; |
| private Bean bean; |
| private PropertyDescriptor propertyDescriptor; |
| private String propertyName; |
| private SetChangeListener listener; |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see junit.framework.TestCase#setUp() |
| */ |
| protected void setUp() throws Exception { |
| bean = new Bean(); |
| propertyName = "set"; |
| propertyDescriptor = new PropertyDescriptor(propertyName, Bean.class); |
| |
| observableSet = new JavaBeanObservableSet(SWTObservables |
| .getRealm(Display.getDefault()), bean, propertyDescriptor, |
| Bean.class); |
| listener = new SetChangeListener(); |
| } |
| |
| public void testGetObserved() throws Exception { |
| assertEquals(bean, observableSet.getObserved()); |
| } |
| |
| public void testGetPropertyDescriptor() throws Exception { |
| assertEquals(propertyDescriptor, observableSet.getPropertyDescriptor()); |
| } |
| |
| public void testGetElementType() throws Exception { |
| assertEquals(Bean.class, observableSet.getElementType()); |
| } |
| |
| public void testRegistersListenerAfterFirstListenerIsAdded() throws Exception { |
| assertFalse(bean.changeSupport.hasListeners(propertyName)); |
| observableSet.addSetChangeListener(new SetChangeListener()); |
| assertTrue(bean.changeSupport.hasListeners(propertyName)); |
| } |
| |
| public void testRemovesListenerAfterLastListenerIsRemoved() throws Exception { |
| observableSet.addSetChangeListener(listener); |
| |
| assertTrue(bean.changeSupport.hasListeners(propertyName)); |
| observableSet.removeSetChangeListener(listener); |
| assertFalse(bean.changeSupport.hasListeners(propertyName)); |
| } |
| |
| public void testFiresChangeEvents() throws Exception { |
| observableSet.addSetChangeListener(listener); |
| assertEquals(0, listener.count); |
| bean.setSet(new HashSet(Arrays.asList(new String[] {"1"}))); |
| assertEquals(1, listener.count); |
| } |
| |
| public void testConstructor_RegisterListeners() throws Exception { |
| bean = new Bean(); |
| |
| observableSet = new JavaBeanObservableSet(new CurrentRealm(true), bean, |
| propertyDescriptor, Bean.class); |
| assertFalse(bean.hasListeners(propertyName)); |
| ChangeEventTracker.observe(observableSet); |
| assertTrue(bean.hasListeners(propertyName)); |
| } |
| |
| public void testConstructor_SkipsRegisterListeners() throws Exception { |
| bean = new Bean(); |
| |
| observableSet = new JavaBeanObservableSet(new CurrentRealm(true), bean, |
| propertyDescriptor, Bean.class, false); |
| assertFalse(bean.hasListeners(propertyName)); |
| ChangeEventTracker.observe(observableSet); |
| assertFalse(bean.hasListeners(propertyName)); |
| } |
| |
| static class SetChangeListener implements ISetChangeListener { |
| int count; |
| public void handleSetChange(SetChangeEvent event) { |
| count++; |
| } |
| } |
| |
| public static Test suite() { |
| TestSuite suite = new TestSuite(JavaBeanObservableSetTest.class.getName()); |
| suite.addTestSuite(JavaBeanObservableSetTest.class); |
| suite.addTest(MutableObservableSetContractTest.suite(new Delegate())); |
| return suite; |
| } |
| |
| private static class Delegate extends |
| AbstractObservableCollectionContractDelegate { |
| public IObservableCollection createObservableCollection(Realm realm, |
| int elementCount) { |
| Bean bean = new Bean(); |
| String propertyName = "set"; |
| PropertyDescriptor propertyDescriptor; |
| try { |
| propertyDescriptor = new PropertyDescriptor(propertyName, |
| Bean.class); |
| } catch (IntrospectionException e) { |
| throw new RuntimeException(e); |
| } |
| |
| IObservableSet set = new JavaBeanObservableSet(realm, |
| bean, propertyDescriptor, String.class); |
| for (int i = 0; i < elementCount; i++) |
| set.add(createElement(set)); |
| return set; |
| } |
| |
| public Object createElement(IObservableCollection collection) { |
| return new Object(); |
| } |
| |
| public Object getElementType(IObservableCollection collection) { |
| return String.class; |
| } |
| |
| public void change(IObservable observable) { |
| IObservableSet set = (IObservableSet) observable; |
| set.add(createElement(set)); |
| } |
| } |
| } |