| /******************************************************************************* |
| * Copyright (c) 2007-2008 Marko Topolnik 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: |
| * Marko Topolnik - initial API and implementation (bug 184830) |
| * Matthew Hall - bugs 184830, 213145 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.tests.internal.databinding.observable; |
| |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertSame; |
| |
| import org.eclipse.core.databinding.observable.IObservable; |
| import org.eclipse.core.databinding.observable.Observables; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.map.IObservableMap; |
| import org.eclipse.core.databinding.observable.map.WritableMap; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.observable.value.IValueChangeListener; |
| import org.eclipse.core.databinding.observable.value.ValueChangeEvent; |
| import org.eclipse.core.databinding.observable.value.ValueDiff; |
| import org.eclipse.core.internal.databinding.observable.MapEntryObservableValue; |
| import org.eclipse.jface.databinding.conformance.MutableObservableValueContractTest; |
| import org.eclipse.jface.databinding.conformance.ObservableStaleContractTest; |
| import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableValueContractDelegate; |
| import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import junit.framework.TestSuite; |
| |
| /** |
| * @since 1.2 |
| */ |
| public class MapEntryObservableValueTest extends AbstractDefaultRealmTestCase |
| implements IValueChangeListener { |
| private static final String VALUE1 = "Value1"; |
| private static final String VALUE2 = "Value2"; |
| |
| private final Object key = "mapKey"; |
| private IObservableMap map; |
| private ValueDiff diff; |
| private MapEntryObservableValue observedValue; |
| |
| @Override |
| @Before |
| public void setUp() throws Exception { |
| super.setUp(); |
| this.map = new WritableMap(); |
| this.observedValue = (MapEntryObservableValue) Observables |
| .observeMapEntry(this.map, this.key, String.class); |
| observedValue.addValueChangeListener(this); |
| } |
| |
| @Override |
| public void handleValueChange(ValueChangeEvent p_event) { |
| this.diff = p_event.diff; |
| } |
| |
| @Test |
| public void testNullValue() { |
| // test entry added with value null |
| this.map.put(this.key, null); |
| assertNull(this.diff); |
| assertNull(this.observedValue.getValue()); |
| // test value changed from null to null |
| this.map.put(this.key, null); |
| assertNull(this.diff); |
| assertNull(this.observedValue.getValue()); |
| // test null-valued entry removed |
| this.map.remove(this.key); |
| assertNull(this.diff); |
| assertNull(this.observedValue.getValue()); |
| } |
| |
| @Test |
| public void testNonNullValue() { |
| // test add non-null value |
| this.map.put(this.key, VALUE1); |
| assertNotNull(this.diff); |
| assertNull(this.diff.getOldValue()); |
| assertSame(VALUE1, this.diff.getNewValue()); |
| assertSame(VALUE1, this.observedValue.getValue()); |
| |
| // test change to another non-null value |
| this.diff = null; |
| this.map.put(this.key, VALUE2); |
| assertNotNull(this.diff); |
| assertSame(VALUE1, this.diff.getOldValue()); |
| assertSame(VALUE2, this.diff.getNewValue()); |
| assertSame(VALUE2, this.observedValue.getValue()); |
| } |
| |
| @Test |
| public void testTransitionBetweenNullAndNonNull() { |
| this.map.put(this.key, null); |
| |
| // test transition to non-null |
| this.diff = null; |
| this.map.put(this.key, VALUE1); |
| assertNotNull(this.diff); |
| assertNull(this.diff.getOldValue()); |
| assertSame(VALUE1, this.diff.getNewValue()); |
| |
| // test transition to null |
| this.diff = null; |
| this.map.put(this.key, null); |
| assertNotNull(this.diff); |
| assertSame(VALUE1, this.diff.getOldValue()); |
| assertNull(this.diff.getNewValue()); |
| } |
| |
| @Test |
| public void testRemoveKey() { |
| this.map.put(this.key, VALUE1); |
| |
| this.diff = null; |
| this.map.remove(this.key); |
| assertNotNull(this.diff); |
| assertSame(VALUE1, this.diff.getOldValue()); |
| assertNull(this.diff.getNewValue()); |
| } |
| |
| @Test |
| public void testGetAndSetValue() { |
| // test set null value |
| this.observedValue.setValue(null); |
| assertNull(this.observedValue.getValue()); |
| assertNull(this.diff); |
| |
| // test set non-null value |
| this.observedValue.setValue(VALUE1); |
| assertSame(VALUE1, this.observedValue.getValue()); |
| assertNotNull(this.diff); |
| assertNull(this.diff.getOldValue()); |
| assertSame(VALUE1, this.diff.getNewValue()); |
| |
| // test set another non-null value |
| this.diff = null; |
| this.observedValue.setValue(VALUE2); |
| assertSame(VALUE2, this.observedValue.getValue()); |
| assertNotNull(this.diff); |
| assertSame(VALUE1, this.diff.getOldValue()); |
| assertSame(VALUE2, this.diff.getNewValue()); |
| } |
| |
| public static void addConformanceTest(TestSuite suite) { |
| suite.addTest(MutableObservableValueContractTest.suite(new Delegate())); |
| suite.addTest(ObservableStaleContractTest.suite(new Delegate())); |
| } |
| |
| private static class Delegate extends |
| AbstractObservableValueContractDelegate { |
| private Object valueType = new Object(); |
| |
| @Override |
| public IObservableValue createObservableValue(Realm realm) { |
| WritableMap map = new WritableMap(realm); |
| Object key = new Object(); |
| map.put(key, new Object()); |
| return new MapEntryObservableValueStub(map, key, valueType); |
| } |
| |
| @Override |
| public Object createValue(IObservableValue observable) { |
| return new Object(); |
| } |
| |
| @Override |
| public Object getValueType(IObservableValue observable) { |
| return valueType; |
| } |
| |
| @Override |
| public void change(IObservable observable) { |
| MapEntryObservableValueStub mapEntryValue = (MapEntryObservableValueStub) observable; |
| mapEntryValue.map |
| .put(mapEntryValue.key, createValue(mapEntryValue)); |
| } |
| |
| @Override |
| public void setStale(IObservable observable, boolean stale) { |
| MapEntryObservableValueStub mapEntryValue = (MapEntryObservableValueStub) observable; |
| mapEntryValue.map.setStale(stale); |
| } |
| } |
| |
| private static class MapEntryObservableValueStub extends |
| MapEntryObservableValue { |
| WritableMap map; |
| Object key; |
| |
| MapEntryObservableValueStub(WritableMap map, Object key, |
| Object valueType) { |
| super(map, key, valueType); |
| this.map = map; |
| this.key = key; |
| } |
| } |
| } |