| /* |
| * 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.HashSet; |
| import java.util.Locale; |
| import java.util.Set; |
| |
| /** |
| * Tests for {@link MultiSelectionModel}. |
| */ |
| public class MultiSelectionModelTest extends AbstractSelectionModelTest { |
| |
| public void testClear() { |
| MultiSelectionModel<String> model = createSelectionModel(null); |
| MockSelectionChangeHandler handler = new MockSelectionChangeHandler(); |
| model.addSelectionChangeHandler(handler); |
| |
| // Select a few values. |
| model.setSelected("test0", true); |
| model.setSelected("test1", true); |
| model.setSelected("test2", true); |
| assertTrue(model.isSelected("test0")); |
| assertTrue(model.isSelected("test1")); |
| assertTrue(model.isSelected("test2")); |
| handler.assertEventFired(true); |
| |
| // Clear selection and verify that an event is fired. |
| model.clear(); |
| assertFalse(model.isSelected("test0")); |
| assertFalse(model.isSelected("test1")); |
| assertFalse(model.isSelected("test2")); |
| handler.assertEventFired(true); |
| } |
| |
| /** |
| * Clearing an empty {@link MultiSelectionModel} should not fire an event, |
| * even if there are pending changes. |
| */ |
| public void testClearWhenEmpty() { |
| MultiSelectionModel<String> model = createSelectionModel(null); |
| MockSelectionChangeHandler handler = new MockSelectionChangeHandler(); |
| model.addSelectionChangeHandler(handler); |
| |
| // Add a pending change. |
| model.setSelected("test", true); |
| |
| // Clear selection and verify that no event is fired. |
| model.clear(); |
| assertFalse(model.isSelected("test")); |
| handler.assertEventFired(false); |
| } |
| |
| /** |
| * Pending changes should apply after the list is cleared. An event should not |
| * be fired if all selected values are reselected. |
| */ |
| public void testClearAndReselect() { |
| MultiSelectionModel<String> model = createSelectionModel(null); |
| MockSelectionChangeHandler handler = new MockSelectionChangeHandler(); |
| model.addSelectionChangeHandler(handler); |
| |
| // Select a few values. |
| model.setSelected("test0", true); |
| model.setSelected("test1", true); |
| model.setSelected("test2", true); |
| assertTrue(model.isSelected("test0")); |
| handler.assertEventFired(true); |
| |
| // Clear selection and reselect. Verify that no event is fired. |
| model.clear(); |
| model.setSelected("test0", true); |
| model.setSelected("test1", true); |
| model.setSelected("test2", true); |
| assertTrue(model.isSelected("test0")); |
| handler.assertEventFired(false); |
| } |
| |
| public void testGetSelectedSet() { |
| MultiSelectionModel<String> model = createSelectionModel(null); |
| Set<String> selected = new HashSet<String>(); |
| assertEquals(selected, model.getSelectedSet()); |
| |
| model.setSelected("test0", true); |
| selected.add("test0"); |
| assertEquals(selected, model.getSelectedSet()); |
| |
| model.setSelected("test1", true); |
| selected.add("test1"); |
| assertEquals(selected, model.getSelectedSet()); |
| |
| model.setSelected("test0", false); |
| selected.remove("test0"); |
| assertEquals(selected, model.getSelectedSet()); |
| } |
| |
| public void testSelectedChangeEvent() { |
| MultiSelectionModel<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() { |
| MultiSelectionModel<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() { |
| MultiSelectionModel<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 |
| } |
| |
| /** |
| * Tests that reselecting the same key from a different item does not fire a |
| * change event. |
| */ |
| public void testNoDuplicateChangeEventWithKeyProvider() { |
| ProvidesKey<String> keyProvider = new ProvidesKey<String>() { |
| @Override |
| public Object getKey(String item) { |
| return item.toUpperCase(Locale.ROOT); |
| } |
| }; |
| MultiSelectionModel<String> model = createSelectionModel(keyProvider); |
| SelectionChangeEvent.Handler handler = new SelectionChangeEvent.Handler() { |
| @Override |
| public void onSelectionChange(SelectionChangeEvent event) { |
| fail(); |
| } |
| }; |
| |
| model.setSelected("test1", true); |
| assertTrue(model.isSelected("test1")); |
| |
| model.addSelectionChangeHandler(handler); |
| // Selecting a different item with the same key should not be seen as a |
| // selection change |
| String replacement = "TEST1"; |
| model.setSelected(replacement, true); |
| assertTrue(model.isSelected(replacement)); |
| assertEquals(1, model.getSelectedSet().size()); |
| assertSame(replacement, model.getSelectedSet().iterator().next()); |
| } |
| |
| public void testSetSelected() { |
| MultiSelectionModel<String> model = createSelectionModel(null); |
| assertFalse(model.isSelected("test0")); |
| |
| model.setSelected("test0", true); |
| assertTrue(model.isSelected("test0")); |
| |
| model.setSelected("test1", true); |
| assertTrue(model.isSelected("test1")); |
| assertTrue(model.isSelected("test0")); |
| |
| model.setSelected("test1", false); |
| assertFalse(model.isSelected("test1")); |
| assertTrue(model.isSelected("test0")); |
| } |
| |
| /** |
| * Tests that items with the same key share the same selection state. |
| */ |
| public void testSetSelectedSameKey() { |
| ProvidesKey<String> keyProvider = new ProvidesKey<String>() { |
| @Override |
| public Object getKey(String item) { |
| return item.toUpperCase(Locale.ROOT); |
| } |
| }; |
| MultiSelectionModel<String> model = createSelectionModel(keyProvider); |
| assertFalse(model.isSelected("test0")); |
| |
| model.setSelected("test0", true); |
| assertTrue(model.isSelected("test0")); |
| |
| model.setSelected("Test0", false); |
| assertFalse(model.isSelected("test0")); |
| |
| // Verify that the last change wins if the key is the same. |
| model.setSelected("TEST0", true); |
| model.setSelected("test0", false); |
| assertFalse(model.isSelected("test0")); |
| } |
| |
| public void testSetSelectedWithKeyProvider() { |
| ProvidesKey<String> keyProvider = new ProvidesKey<String>() { |
| @Override |
| public Object getKey(String item) { |
| return item.toUpperCase(Locale.ROOT); |
| } |
| }; |
| MultiSelectionModel<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")); |
| assertTrue(model.isSelected("test0")); |
| assertTrue(model.isSelected("TEST0")); |
| |
| model.setSelected("test1", false); |
| assertFalse(model.isSelected("test1")); |
| assertFalse(model.isSelected("TEST1")); |
| assertTrue(model.isSelected("test0")); |
| assertTrue(model.isSelected("TEST0")); |
| } |
| |
| @Override |
| protected MultiSelectionModel<String> createSelectionModel(ProvidesKey<String> keyProvider) { |
| return new MultiSelectionModel<String>(keyProvider); |
| } |
| } |