| /******************************************************************************* |
| * Copyright (c) 2006 Brad Reynolds. |
| * 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 |
| * Brad Reynolds - bug 116920 |
| *******************************************************************************/ |
| package org.eclipse.jface.tests.internal.databinding.viewers; |
| |
| import junit.framework.TestCase; |
| |
| import org.eclipse.core.databinding.observable.list.ListDiffEntry; |
| import org.eclipse.jface.databinding.conformance.util.ListChangeEventTracker; |
| import org.eclipse.jface.databinding.swt.SWTObservables; |
| import org.eclipse.jface.internal.databinding.viewers.SelectionProviderMultipleSelectionObservableList; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Tests for SelectionProviderMultiSelectionObservableList. |
| * |
| * @since 1.2 |
| */ |
| public class SelectionProviderMultiSelectionObservableListTest extends TestCase { |
| private ISelectionProvider selectionProvider; |
| |
| private TableViewer viewer; |
| |
| private static String[] model = new String[] { "0", "1", "2", "3" }; |
| |
| protected void setUp() throws Exception { |
| Shell shell = new Shell(); |
| viewer = new TableViewer(shell, SWT.MULTI); |
| viewer.setContentProvider(new ContentProvider()); |
| viewer.setInput(model); |
| selectionProvider = viewer; |
| } |
| |
| protected void tearDown() throws Exception { |
| Shell shell = viewer.getTable().getShell(); |
| if (!shell.isDisposed()) |
| shell.dispose(); |
| } |
| |
| public void testConstructorIllegalArgumentException() { |
| try { |
| new SelectionProviderMultipleSelectionObservableList(SWTObservables |
| .getRealm(Display.getDefault()), null, Object.class); |
| fail(); |
| } catch (IllegalArgumentException e) { |
| } |
| } |
| |
| /** |
| * Asserts that when a selection is set on the viewer: |
| * <ul> |
| * <li>the selection is available in the observable</li> |
| * <li>Value change events are fired with appropriate diff values</li> |
| * </ul> |
| */ |
| public void testAddRemove() { |
| SelectionProviderMultipleSelectionObservableList observable = new SelectionProviderMultipleSelectionObservableList( |
| SWTObservables.getRealm(Display.getDefault()), |
| selectionProvider, Object.class); |
| ListChangeEventTracker listener = new ListChangeEventTracker(); |
| observable.addListChangeListener(listener); |
| assertEquals(0, observable.size()); |
| |
| selectionProvider.setSelection(new StructuredSelection(model[0])); |
| assertEquals(1, listener.count); |
| assertEquals(1, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 0, model[0], true); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(1, observable.size()); |
| assertEquals(model[0], observable.get(0)); |
| |
| selectionProvider.setSelection(new StructuredSelection(model[1])); |
| assertEquals(2, listener.count); |
| assertEquals(2, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 0, model[1], true); |
| assertDiffEntry(listener.event.diff.getDifferences()[1], 1, model[0], false); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(1, observable.size()); |
| assertEquals(model[1], observable.get(0)); |
| |
| selectionProvider.setSelection(new StructuredSelection(new Object[]{model[2],model[3]})); |
| assertEquals(3, listener.count); |
| assertEquals(3, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 0, model[2], true); |
| assertDiffEntry(listener.event.diff.getDifferences()[1], 1, model[3], true); |
| assertDiffEntry(listener.event.diff.getDifferences()[2], 2, model[1], false); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(2, observable.size()); |
| assertEquals(model[2], observable.get(0)); |
| assertEquals(model[3], observable.get(1)); |
| |
| selectionProvider.setSelection(StructuredSelection.EMPTY); |
| assertEquals(4, listener.count); |
| assertEquals(2, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 1, model[3], false); |
| assertDiffEntry(listener.event.diff.getDifferences()[1], 0, model[2], false); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(0, observable.size()); |
| |
| observable.add(model[1]); |
| assertEquals(5, listener.count); |
| assertEquals(1, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 0, model[1], true); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(1, ((IStructuredSelection)viewer.getSelection()).size()); |
| |
| observable.add(0, model[2]); |
| assertEquals(6, listener.count); |
| assertEquals(1, listener.event.diff.getDifferences().length); |
| // This is a bit surprising (we added at index 0 but the event says index 1). |
| // It is to the fact that the observable list tracks the underlying selection |
| // provider's notion of which element is at which index. |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 1, model[2], true); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(2, ((IStructuredSelection)viewer.getSelection()).size()); |
| |
| observable.clear(); |
| assertEquals(7, listener.count); |
| assertEquals(2, listener.event.diff.getDifferences().length); |
| assertDiffEntry(listener.event.diff.getDifferences()[0], 1, model[2], false); |
| assertDiffEntry(listener.event.diff.getDifferences()[1], 0, model[1], false); |
| assertEquals(observable, listener.event.getObservableList()); |
| assertEquals(0, ((IStructuredSelection)viewer.getSelection()).size()); |
| } |
| |
| /** |
| * @param diffEntry |
| * @param position |
| * @param element |
| * @param isAddition |
| */ |
| private void assertDiffEntry(ListDiffEntry diffEntry, int position, |
| String element, boolean isAddition) { |
| assertEquals(isAddition, diffEntry.isAddition()); |
| assertEquals(position, diffEntry.getPosition()); |
| assertEquals(element, diffEntry.getElement()); |
| } |
| |
| private class ContentProvider implements IStructuredContentProvider { |
| public void dispose() { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| public Object[] getElements(Object inputElement) { |
| return (String[]) inputElement; |
| } |
| } |
| } |