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/*******************************************************************************
* Copyright (c) 2009, 2012 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.common.utility.tests.internal.model.value;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.model.AbstractModel;
import org.eclipse.jpt.common.utility.internal.model.value.ReadOnlyWritablePropertyValueModelWrapper;
import org.eclipse.jpt.common.utility.internal.model.value.SimplePropertyValueModel;
import org.eclipse.jpt.common.utility.model.event.PropertyChangeEvent;
import org.eclipse.jpt.common.utility.model.listener.ChangeAdapter;
import org.eclipse.jpt.common.utility.model.listener.ChangeListener;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.common.utility.model.value.ModifiablePropertyValueModel;
import org.eclipse.jpt.common.utility.tests.internal.TestTools;
@SuppressWarnings("nls")
public class ReadOnlyWritablePropertyValueModelWrapperTests
extends TestCase
{
private ModifiablePropertyValueModel<String> objectHolder;
PropertyChangeEvent event;
private ModifiablePropertyValueModel<String> wrapperObjectHolder;
PropertyChangeEvent wrapperEvent;
public ReadOnlyWritablePropertyValueModelWrapperTests(String name) {
super(name);
}
@Override
protected void setUp() throws Exception {
super.setUp();
this.objectHolder = new SimplePropertyValueModel<String>("foo");
this.wrapperObjectHolder = new ReadOnlyWritablePropertyValueModelWrapper<String>(this.objectHolder);
}
@Override
protected void tearDown() throws Exception {
TestTools.clear(this);
super.tearDown();
}
public void testValue() {
assertEquals("foo", this.objectHolder.getValue());
assertEquals("foo", this.wrapperObjectHolder.getValue());
this.objectHolder.setValue("bar");
assertEquals("bar", this.objectHolder.getValue());
assertEquals("bar", this.wrapperObjectHolder.getValue());
this.objectHolder.setValue(null);
assertNull(this.objectHolder.getValue());
assertNull(this.wrapperObjectHolder.getValue());
this.objectHolder.setValue("foo");
assertEquals("foo", this.objectHolder.getValue());
assertEquals("foo", this.wrapperObjectHolder.getValue());
}
public void testSetValue() {
boolean exceptionOccurred = false;
try {
this.wrapperObjectHolder.setValue("bar");
}
catch (UnsupportedOperationException uoe) {
exceptionOccurred = true;
}
assertTrue(exceptionOccurred);
assertEquals("foo", this.objectHolder.getValue());
assertEquals("foo", this.wrapperObjectHolder.getValue());
}
public void testLazyListening() {
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
ChangeListener listener = buildWrapperListener();
this.wrapperObjectHolder.addChangeListener(listener);
assertTrue(((AbstractModel) this.objectHolder).hasAnyPropertyChangeListeners(PropertyValueModel.VALUE));
this.wrapperObjectHolder.removeChangeListener(listener);
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
this.wrapperObjectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, listener);
assertTrue(((AbstractModel) this.objectHolder).hasAnyPropertyChangeListeners(PropertyValueModel.VALUE));
this.wrapperObjectHolder.removePropertyChangeListener(PropertyValueModel.VALUE, listener);
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
}
public void testPropertyChange1() {
this.objectHolder.addChangeListener(this.buildListener());
this.wrapperObjectHolder.addChangeListener(this.buildWrapperListener());
this.verifyPropertyChanges();
}
public void testPropertyChange2() {
this.objectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.buildListener());
this.wrapperObjectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.buildWrapperListener());
this.verifyPropertyChanges();
}
private void verifyPropertyChanges() {
this.event = null;
this.wrapperEvent = null;
this.objectHolder.setValue("bar");
verifyEvent(this.event, this.objectHolder, "foo", "bar");
verifyEvent(this.wrapperEvent, this.wrapperObjectHolder, "foo", "bar");
this.event = null;
this.wrapperEvent = null;
this.objectHolder.setValue(null);
verifyEvent(this.event, this.objectHolder, "bar", null);
verifyEvent(this.wrapperEvent, this.wrapperObjectHolder, "bar", null);
this.event = null;
this.wrapperEvent = null;
this.objectHolder.setValue("foo");
verifyEvent(this.event, this.objectHolder, null, "foo");
verifyEvent(this.wrapperEvent, this.wrapperObjectHolder, null, "foo");
}
private ChangeListener buildListener() {
return new ChangeAdapter() {
@Override
public void propertyChanged(PropertyChangeEvent e) {
ReadOnlyWritablePropertyValueModelWrapperTests.this.event = e;
}
};
}
private ChangeListener buildWrapperListener() {
return new ChangeAdapter() {
@Override
public void propertyChanged(PropertyChangeEvent e) {
ReadOnlyWritablePropertyValueModelWrapperTests.this.wrapperEvent = e;
}
};
}
private void verifyEvent(PropertyChangeEvent e, Object source, Object oldValue, Object newValue) {
assertEquals(source, e.getSource());
assertEquals(PropertyValueModel.VALUE, e.getPropertyName());
assertEquals(oldValue, e.getOldValue());
assertEquals(newValue, e.getNewValue());
}
}
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