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/*******************************************************************************
* Copyright (c) 2006 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
* Ashley Cambrell - bug 198904
* Matthew Hall - bug 194734, 195222
******************************************************************************/
package org.eclipse.jface.tests.internal.databinding.swt;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.jface.databinding.conformance.util.ValueChangeEventTracker;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.swt.WidgetProperties;
import org.eclipse.jface.internal.databinding.swt.ComboSelectionProperty;
import org.eclipse.jface.internal.databinding.swt.ComboTextProperty;
import org.eclipse.jface.tests.databinding.AbstractSWTTestCase;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Combo;
/**
* @since 3.2
* @no
*/
public class ComboObservableValueTest extends AbstractSWTTestCase {
public void testDispose() throws Exception {
Combo combo = new Combo(getShell(), SWT.NONE);
IObservableValue observableValue = SWTObservables.observeText(combo);
ValueChangeEventTracker testCounterValueChangeListener = new ValueChangeEventTracker();
observableValue.addValueChangeListener(testCounterValueChangeListener);
assertEquals("", combo.getText());
assertEquals("", observableValue.getValue());
String expected1 = "Test123";
combo.setText(expected1);
assertEquals(1, testCounterValueChangeListener.count);
assertEquals(expected1, combo.getText());
assertEquals(expected1, observableValue.getValue());
observableValue.dispose();
String expected2 = "NewValue123";
combo.setText(expected2);
assertEquals(1, testCounterValueChangeListener.count);
assertEquals(expected2, combo.getText());
}
public void testSetValueWithNull() {
testSetValueWithNull(WidgetProperties.text());
testSetValueWithNull(WidgetProperties.selection());
}
protected void testSetValueWithNull(IValueProperty property) {
Combo combo = new Combo(getShell(), SWT.NONE);
combo.setItems(new String[] { "one", "two", "three" });
IObservableValue observable = property.observe(Realm.getDefault(),
combo);
observable.setValue("two");
assertEquals("two", combo.getText());
if (property instanceof ComboSelectionProperty) {
assertEquals("expect selection at index 1 in selection mode", 1,
combo.getSelectionIndex());
}
if (property instanceof ComboTextProperty) {
observable.setValue(null);
assertEquals("expect empty text in text mode", "", combo.getText());
}
}
}
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