| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.view.client; |
| |
| import java.util.Locale; |
| |
| /** |
| * Tests for {@link SingleSelectionModel}. |
| */ |
| public class SingleSelectionModelTest extends AbstractSelectionModelTest { |
| |
| /** |
| * Test that deselecting a value other than the pending selection does not |
| * cause the pending selection to be lost. |
| */ |
| public void testDeselectWhileSelectionPending() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| model.setSelected("test", true); |
| model.setSelected("other", false); |
| assertTrue(model.isSelected("test")); |
| assertEquals("test", model.getSelectedObject()); |
| } |
| |
| public void testGetSelectedObject() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| assertNull(model.getSelectedObject()); |
| |
| model.setSelected("test", true); |
| assertEquals("test", model.getSelectedObject()); |
| assertEquals("test", model.getSelectedSet().iterator().next()); |
| |
| model.setSelected("test", false); |
| assertNull(model.getSelectedObject()); |
| assertEquals(0, model.getSelectedSet().size()); |
| } |
| |
| public void testSelectedChangeEvent() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| SelectionChangeEvent.Handler handler = new SelectionChangeEvent.Handler() { |
| @Override |
| public void onSelectionChange(SelectionChangeEvent event) { |
| finishTest(); |
| } |
| }; |
| model.addSelectionChangeHandler(handler); |
| |
| delayTestFinish(2000); |
| model.setSelected("test", true); |
| } |
| |
| public void testNoDuplicateChangeEvent() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| SelectionChangeEvent.Handler handler = new SelectionChangeEvent.Handler() { |
| @Override |
| public void onSelectionChange(SelectionChangeEvent event) { |
| fail(); |
| } |
| }; |
| |
| model.setSelected("test", true); |
| model.addSelectionChangeHandler(handler); |
| model.setSelected("test", true); // Should not fire change event |
| model.setSelected("test", true); // Should not fire change event |
| } |
| |
| public void testNoDuplicateChangeEvent2() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| SelectionChangeEvent.Handler handler = new SelectionChangeEvent.Handler() { |
| @Override |
| public void onSelectionChange(SelectionChangeEvent event) { |
| fail(); |
| } |
| }; |
| |
| model.setSelected("test", true); |
| model.setSelected("test", false); |
| model.addSelectionChangeHandler(handler); |
| model.setSelected("test", false); // Should not fire change event |
| model.setSelected("test", false); // Should not fire change event |
| } |
| |
| public void testSetSelected() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| assertFalse(model.isSelected("test0")); |
| |
| model.setSelected("test0", true); |
| assertTrue(model.isSelected("test0")); |
| assertEquals("test0", model.getSelectedSet().iterator().next()); |
| |
| model.setSelected("test1", true); |
| assertTrue(model.isSelected("test1")); |
| assertFalse(model.isSelected("test0")); |
| assertEquals("test1", model.getSelectedSet().iterator().next()); |
| assertEquals(1, model.getSelectedSet().size()); |
| |
| model.setSelected("test1", false); |
| assertFalse(model.isSelected("test1")); |
| assertFalse(model.isSelected("test0")); |
| assertEquals(0, model.getSelectedSet().size()); |
| |
| model.setSelected("test2", true); |
| assertEquals(1, model.getSelectedSet().size()); |
| assertEquals("test2", model.getSelectedSet().iterator().next()); |
| } |
| |
| public void testSetSelectedNull() { |
| SingleSelectionModel<String> model = createSelectionModel(null); |
| |
| model.setSelected("test", true); |
| assertTrue(model.isSelected("test")); |
| |
| // Null cannot be selected, but it deselects the current item. |
| model.setSelected(null, true); |
| assertNull(model.getSelectedObject()); |
| assertFalse(model.isSelected("test")); |
| assertFalse(model.isSelected(null)); |
| assertEquals(0, model.getSelectedSet().size()); |
| } |
| |
| public void testSetSelectedWithKeyProvider() { |
| ProvidesKey<String> keyProvider = new ProvidesKey<String>() { |
| @Override |
| public Object getKey(String item) { |
| return item.toUpperCase(Locale.ROOT); |
| } |
| }; |
| SingleSelectionModel<String> model = createSelectionModel(keyProvider); |
| assertFalse(model.isSelected("test0")); |
| |
| model.setSelected("test0", true); |
| assertTrue(model.isSelected("test0")); |
| assertTrue(model.isSelected("TEST0")); |
| |
| model.setSelected("test1", true); |
| assertTrue(model.isSelected("test1")); |
| assertTrue(model.isSelected("TEST1")); |
| assertFalse(model.isSelected("test0")); |
| |
| model.setSelected("test1", false); |
| assertFalse(model.isSelected("test1")); |
| assertFalse(model.isSelected("test0")); |
| } |
| |
| @Override |
| protected SingleSelectionModel<String> createSelectionModel(ProvidesKey<String> keyProvider) { |
| return new SingleSelectionModel<String>(keyProvider); |
| } |
| } |