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/*******************************************************************************
* 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.common.utility.tests.internal.model.value;
import junit.framework.TestCase;
import org.eclipse.jpt.common.utility.internal.BidiTransformer;
import org.eclipse.jpt.common.utility.internal.model.AbstractModel;
import org.eclipse.jpt.common.utility.internal.model.value.SimplePropertyValueModel;
import org.eclipse.jpt.common.utility.internal.model.value.TransformationWritablePropertyValueModel;
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.WritablePropertyValueModel;
import org.eclipse.jpt.common.utility.tests.internal.TestTools;
@SuppressWarnings("nls")
public class TransformationPropertyValueModelTests extends TestCase {
private WritablePropertyValueModel<String> objectHolder;
PropertyChangeEvent event;
private WritablePropertyValueModel<String> transformationObjectHolder;
PropertyChangeEvent transformationEvent;
public TransformationPropertyValueModelTests(String name) {
super(name);
}
@Override
protected void setUp() throws Exception {
super.setUp();
this.objectHolder = new SimplePropertyValueModel<String>("foo");
this.transformationObjectHolder = new TransformationWritablePropertyValueModel<String, String>(this.objectHolder, this.buildTransformer());
}
private BidiTransformer<String, String> buildTransformer() {
return new BidiTransformer<String, String>() {
public String transform(String s) {
return (s == null) ? null : s.toUpperCase();
}
public String reverseTransform(String s) {
return (s == null) ? null : s.toLowerCase();
}
};
}
@Override
protected void tearDown() throws Exception {
TestTools.clear(this);
super.tearDown();
}
public void testValue() {
assertEquals("foo", this.objectHolder.getValue());
assertEquals("FOO", this.transformationObjectHolder.getValue());
this.objectHolder.setValue("bar");
assertEquals("bar", this.objectHolder.getValue());
assertEquals("BAR", this.transformationObjectHolder.getValue());
this.objectHolder.setValue("baz");
assertEquals("baz", this.objectHolder.getValue());
assertEquals("BAZ", this.transformationObjectHolder.getValue());
this.objectHolder.setValue(null);
assertNull(this.objectHolder.getValue());
assertNull(this.transformationObjectHolder.getValue());
this.objectHolder.setValue("foo");
assertEquals("foo", this.objectHolder.getValue());
assertEquals("FOO", this.transformationObjectHolder.getValue());
}
public void testSetValue() {
this.transformationObjectHolder.setValue("BAR");
assertEquals("bar", this.objectHolder.getValue());
assertEquals("BAR", this.transformationObjectHolder.getValue());
this.transformationObjectHolder.setValue("Foo");
assertEquals("foo", this.objectHolder.getValue());
assertEquals("FOO", this.transformationObjectHolder.getValue());
this.transformationObjectHolder.setValue(null);
assertNull(this.objectHolder.getValue());
assertNull(this.transformationObjectHolder.getValue());
this.transformationObjectHolder.setValue("baz");
assertEquals("baz", this.objectHolder.getValue());
assertEquals("BAZ", this.transformationObjectHolder.getValue());
}
public void testLazyListening() {
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
ChangeListener listener = this.buildTransformationListener();
this.transformationObjectHolder.addChangeListener(listener);
assertTrue(((AbstractModel) this.objectHolder).hasAnyPropertyChangeListeners(PropertyValueModel.VALUE));
this.transformationObjectHolder.removeChangeListener(listener);
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
this.transformationObjectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, listener);
assertTrue(((AbstractModel) this.objectHolder).hasAnyPropertyChangeListeners(PropertyValueModel.VALUE));
this.transformationObjectHolder.removePropertyChangeListener(PropertyValueModel.VALUE, listener);
assertTrue(((AbstractModel) this.objectHolder).hasNoPropertyChangeListeners(PropertyValueModel.VALUE));
}
public void testPropertyChange1() {
this.objectHolder.addChangeListener(this.buildListener());
this.transformationObjectHolder.addChangeListener(this.buildTransformationListener());
this.verifyPropertyChanges();
}
public void testPropertyChange2() {
this.objectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.buildListener());
this.transformationObjectHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.buildTransformationListener());
this.verifyPropertyChanges();
}
private void verifyPropertyChanges() {
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue("bar");
this.verifyEvent(this.event, this.objectHolder, "foo", "bar");
this.verifyEvent(this.transformationEvent, this.transformationObjectHolder, "FOO", "BAR");
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue("baz");
this.verifyEvent(this.event, this.objectHolder, "bar", "baz");
this.verifyEvent(this.transformationEvent, this.transformationObjectHolder, "BAR", "BAZ");
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue("Foo");
this.verifyEvent(this.event, this.objectHolder, "baz", "Foo");
this.verifyEvent(this.transformationEvent, this.transformationObjectHolder, "BAZ", "FOO");
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue("FOO");
this.verifyEvent(this.event, this.objectHolder, "Foo", "FOO");
assertNull(this.transformationEvent);
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue(null);
this.verifyEvent(this.event, this.objectHolder, "FOO", null);
this.verifyEvent(this.transformationEvent, this.transformationObjectHolder, "FOO", null);
this.event = null;
this.transformationEvent = null;
this.objectHolder.setValue("bar");
this.verifyEvent(this.event, this.objectHolder, null, "bar");
this.verifyEvent(this.transformationEvent, this.transformationObjectHolder, null, "BAR");
}
private ChangeListener buildListener() {
return new ChangeAdapter() {
@Override
public void propertyChanged(PropertyChangeEvent e) {
TransformationPropertyValueModelTests.this.event = e;
}
};
}
private ChangeListener buildTransformationListener() {
return new ChangeAdapter() {
@Override
public void propertyChanged(PropertyChangeEvent e) {
TransformationPropertyValueModelTests.this.transformationEvent = 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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