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/*******************************************************************************
* 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.internal.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));
}
}
}
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