| /******************************************************************************* |
| * Copyright (c) 2007, 2009 Bob Smith and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Bob Smith - initial API and implementation (bug 198880) |
| * Matthew Hall - bugs 146397, 260329 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.tests.databinding; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.core.databinding.Binding; |
| import org.eclipse.core.databinding.DataBindingContext; |
| import org.eclipse.core.databinding.ObservablesManager; |
| import org.eclipse.core.databinding.ValidationStatusProvider; |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.Observables; |
| import org.eclipse.core.databinding.observable.list.IObservableList; |
| import org.eclipse.core.databinding.observable.list.WritableList; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.observable.value.WritableValue; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * @since 3.2 |
| * |
| */ |
| public class ObservablesManagerTest extends AbstractDefaultRealmTestCase { |
| private DataBindingContext dbc; |
| |
| @Override |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| |
| dbc = new DataBindingContext(); |
| } |
| |
| @Override |
| @After |
| public void tearDown() throws Exception { |
| if (dbc != null) { |
| dbc.dispose(); |
| } |
| super.tearDown(); |
| } |
| |
| @Test |
| public void testOnlyModelIsDisposed() throws Exception { |
| IObservableValue<?> targetOv = new WritableValue<>(); |
| IObservableValue<?> modelOv = new WritableValue<>(); |
| dbc.bindValue(targetOv, modelOv); |
| |
| ObservablesManager observablesManager = new ObservablesManager(); |
| |
| observablesManager.addObservablesFromContext(dbc, false, true); |
| observablesManager.dispose(); |
| |
| assertFalse(targetOv.isDisposed()); |
| assertTrue(modelOv.isDisposed()); |
| } |
| |
| @Test |
| public void testOnlyTargetIsDisposed() throws Exception { |
| IObservableValue<?> targetOv = new WritableValue<>(); |
| IObservableValue<?> modelOv = new WritableValue<>(); |
| dbc.bindValue(targetOv, modelOv); |
| |
| ObservablesManager observablesManager = new ObservablesManager(); |
| |
| observablesManager.addObservablesFromContext(dbc, true, false); |
| observablesManager.dispose(); |
| |
| assertTrue(targetOv.isDisposed()); |
| assertFalse(modelOv.isDisposed()); |
| } |
| |
| /** |
| * Tests that {@link ObservablesManager#addContext} disposes the argument |
| * {@link DataBindingContext}. |
| */ |
| @Test |
| public void testContextIsDisposed() { |
| IObservableValue<?> targetOv = new WritableValue<>(); |
| IObservableValue<?> modelOv = new WritableValue<>(); |
| |
| dbc.bindValue(targetOv, modelOv); |
| |
| ValidationStatusProvider dummyProvider = createDummyBinding(Observables.emptyObservableList(), |
| Observables.emptyObservableList()); |
| |
| dbc.addValidationStatusProvider(dummyProvider); |
| |
| ObservablesManager observablesManager = new ObservablesManager(); |
| |
| observablesManager.addContext(dbc, true, false); |
| |
| observablesManager.dispose(); |
| |
| // Validation status providers are only disposed when the databinding context |
| // itself is disposed |
| assertTrue(dummyProvider.isDisposed()); |
| assertTrue(targetOv.isDisposed()); |
| assertFalse(modelOv.isDisposed()); |
| } |
| |
| /** |
| * Tests that {@link ObservablesManager#addObservablesFromContext} does not |
| * dispose the argument {@link DataBindingContext}. |
| */ |
| @Test |
| public void testContextIsNotDisposed() { |
| IObservableValue<?> targetOv = new WritableValue<>(); |
| IObservableValue<?> modelOv = new WritableValue<>(); |
| |
| dbc.bindValue(targetOv, modelOv); |
| |
| ValidationStatusProvider dummyProvider = createDummyBinding(Observables.emptyObservableList(), |
| Observables.emptyObservableList()); |
| |
| dbc.addValidationStatusProvider(dummyProvider); |
| |
| ObservablesManager observablesManager = new ObservablesManager(); |
| |
| observablesManager.addObservablesFromContext(dbc, true, true); |
| |
| observablesManager.dispose(); |
| |
| // Validation status providers are only disposed when the databinding context |
| // itself is disposed |
| assertFalse(dummyProvider.isDisposed()); |
| } |
| |
| @Test |
| public void testTargetAndModelIsDisposed() throws Exception { |
| IObservableValue<?> targetOv = new WritableValue<>(); |
| IObservableValue<?> modelOv = new WritableValue<>(); |
| dbc.bindValue(targetOv, modelOv); |
| |
| ObservablesManager observablesManager = new ObservablesManager(); |
| |
| observablesManager.addObservablesFromContext(dbc, true, true); |
| observablesManager.dispose(); |
| |
| assertTrue(targetOv.isDisposed()); |
| assertTrue(modelOv.isDisposed()); |
| } |
| |
| @Test |
| public void testDispose_Bug277966_NPEWhenManagedObservableAlreadyDisposed() { |
| ObservablesManager manager = new ObservablesManager(); |
| |
| // NPE only occurs when explicitly managing (i.e. not through a |
| // DataBindingContext) observables where hashCode() is a tracked getter |
| IObservable observable = new WritableList<>(); |
| manager.addObservable(observable); |
| observable.dispose(); |
| |
| manager.dispose(); |
| } |
| |
| @Test |
| public void testDisposeMultipleTargets_Bug546983() { |
| DataBindingContext context = new DataBindingContext(); |
| |
| IObservableList<IObservable> targets = new WritableList<>( |
| Arrays.asList(new WritableValue<>(), new WritableValue<>()), WritableValue.class); |
| IObservableList<IObservable> models = new WritableList<>( |
| Arrays.asList(new WritableValue<>(), new WritableValue<>()), WritableValue.class); |
| |
| context.addBinding(createDummyBinding(targets, models)); |
| ObservablesManager manager = new ObservablesManager(); |
| manager.addObservablesFromContext(context, true, true); |
| manager.dispose(); |
| |
| assertTrue(targets.get(0).isDisposed()); |
| assertTrue(targets.get(1).isDisposed()); |
| assertTrue(models.get(0).isDisposed()); |
| assertTrue(models.get(1).isDisposed()); |
| } |
| |
| private Binding createDummyBinding(IObservableList<IObservable> targets, IObservableList<IObservable> models) { |
| return new Binding(new WritableValue<>(), new WritableValue<>()) { |
| @Override |
| public IObservableList<IObservable> getTargets() { |
| return targets; |
| } |
| @Override |
| public IObservableList<IObservable> getModels() { |
| return models; |
| } |
| |
| @Override |
| public IObservableValue<IStatus> getValidationStatus() { |
| return Observables.constantObservableValue(Status.OK_STATUS); |
| } |
| @Override |
| public void validateTargetToModel() { |
| } |
| @Override |
| public void validateModelToTarget() { |
| } |
| @Override |
| public void updateTargetToModel() { |
| } |
| @Override |
| public void updateModelToTarget() { |
| } |
| @Override |
| protected void preInit() { |
| } |
| @Override |
| protected void postInit() { |
| } |
| }; |
| } |
| } |