| /******************************************************************************* |
| * Copyright (c) 2006, 2009 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 213145, 194734, 195222 |
| ******************************************************************************/ |
| |
| package org.eclipse.jface.tests.internal.databinding.swt; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableValueContractDelegate; |
| import org.eclipse.jface.databinding.conformance.swt.SWTMutableObservableValueContractTest; |
| import org.eclipse.jface.databinding.conformance.util.ValueChangeEventTracker; |
| import org.eclipse.jface.databinding.swt.ISWTObservableValue; |
| import org.eclipse.jface.databinding.swt.SWTObservables; |
| import org.eclipse.jface.databinding.swt.WidgetProperties; |
| import org.eclipse.jface.tests.databinding.AbstractSWTTestCase; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Shell; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import junit.framework.TestSuite; |
| |
| /** |
| * @since 3.2 |
| */ |
| public class ButtonObservableValueTest extends AbstractSWTTestCase { |
| private Button button; |
| private ISWTObservableValue observableValue; |
| private ValueChangeEventTracker listener; |
| |
| @Override |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| |
| Shell shell = getShell(); |
| button = new Button(shell, SWT.CHECK); |
| observableValue = SWTObservables.observeSelection(button); |
| listener = new ValueChangeEventTracker(); |
| } |
| |
| @Test |
| public void testSelection_ChangeNotifiesObservable() throws Exception { |
| observableValue.addValueChangeListener(listener); |
| button.setSelection(true); |
| |
| // precondition |
| assertEquals(0, listener.count); |
| button.notifyListeners(SWT.Selection, null); |
| |
| assertEquals("Selection event should notify observable.", 1, |
| listener.count); |
| } |
| |
| @Test |
| public void testSelection_NoChange() throws Exception { |
| button.setSelection(true); |
| button.notifyListeners(SWT.Selection, null); |
| observableValue.addValueChangeListener(listener); |
| |
| // precondition |
| assertEquals(0, listener.count); |
| |
| button.notifyListeners(SWT.Selection, null); |
| assertEquals( |
| "Value did not change. Listeners should not have been notified.", |
| 0, listener.count); |
| } |
| |
| @Test |
| public void testSetValue_NullConvertedToFalse() { |
| button.setSelection(true); |
| assertEquals(Boolean.TRUE, observableValue.getValue()); |
| |
| observableValue.setValue(null); |
| assertEquals(Boolean.FALSE, observableValue.getValue()); |
| } |
| |
| @Test |
| public void testDispose() throws Exception { |
| ValueChangeEventTracker testCounterValueChangeListener = new ValueChangeEventTracker(); |
| observableValue.addValueChangeListener(testCounterValueChangeListener); |
| |
| assertEquals(Boolean.FALSE, observableValue.getValue()); |
| assertFalse(button.getSelection()); |
| |
| button.setSelection(true); |
| button.notifyListeners(SWT.Selection, null); |
| |
| assertEquals(1, testCounterValueChangeListener.count); |
| assertEquals(Boolean.TRUE, observableValue.getValue()); |
| assertTrue(button.getSelection()); |
| |
| observableValue.dispose(); |
| |
| button.setSelection(false); |
| button.notifyListeners(SWT.Selection, null); |
| |
| assertEquals(1, testCounterValueChangeListener.count); |
| } |
| |
| public static void addConformanceTest(TestSuite suite) { |
| suite.addTest(SWTMutableObservableValueContractTest.suite(new Delegate())); |
| } |
| |
| /* package */static class Delegate extends |
| AbstractObservableValueContractDelegate { |
| Shell shell; |
| |
| Button button; |
| |
| @Override |
| public void setUp() { |
| super.setUp(); |
| |
| shell = new Shell(); |
| button = new Button(shell, SWT.CHECK); |
| } |
| |
| @Override |
| public void tearDown() { |
| super.tearDown(); |
| |
| shell.dispose(); |
| } |
| |
| @Override |
| public IObservableValue createObservableValue(Realm realm) { |
| return WidgetProperties.selection().observe(realm, button); |
| } |
| |
| @Override |
| public Object getValueType(IObservableValue observable) { |
| return Boolean.TYPE; |
| } |
| |
| @Override |
| public void change(IObservable observable) { |
| ((IObservableValue) observable).setValue(Boolean |
| .valueOf(changeValue(button))); |
| } |
| |
| @Override |
| public Object createValue(IObservableValue observable) { |
| return Boolean.valueOf(changeValue(button)); |
| } |
| |
| private boolean changeValue(Button button) { |
| return !button.getSelection(); |
| } |
| } |
| } |