1 /*
2 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package test.javafx.collections;
27
28 import test.javafx.collections.Person;
29 import test.javafx.collections.MockListObserver;
30 import com.sun.javafx.collections.ObservableListWrapper;
31 import java.util.Arrays;
32 import java.util.Collections;
33 import java.util.List;
34 import java.util.function.Predicate;
35 import javafx.beans.property.ObjectProperty;
36 import javafx.beans.property.SimpleObjectProperty;
37 import javafx.collections.FXCollections;
38 import javafx.collections.ObservableList;
39 import javafx.collections.ObservableListWrapperShim;
40 import javafx.collections.transformation.FilteredList;
41 import static org.junit.Assert.*;
42 import org.junit.Before;
43 import org.junit.Test;
44
45 public class FilteredListTest {
46
47 private ObservableList<String> list;
48 private MockListObserver<String> mlo;
49 private FilteredList<String> filteredList;
50
51 @Before
52 public void setUp() {
53 list = FXCollections.observableArrayList();
54 list.addAll("a", "c", "d", "c");
55 Predicate<String> predicate = (String e) -> !e.equals("c");
56 mlo = new MockListObserver<String>();
57 filteredList = new FilteredList<>(list, predicate);
58 filteredList.addListener(mlo);
59 }
60
61
62 @Test
63 public void testLiveMode() {
64 assertEquals(Arrays.asList("a", "d"), filteredList);
65 mlo.check0();
66 }
67
68 @Test
69 public void testLiveMode_Add() {
70 list.clear();
71 mlo.clear();
72 assertEquals(Collections.emptyList(), filteredList);
73 list.addAll("a", "c", "d", "c");
74 assertEquals(Arrays.asList("a", "d"), filteredList);
75 mlo.check1AddRemove(filteredList, Collections.<String>emptyList(), 0, 2);
76 mlo.clear();
77 list.add("c");
78 mlo.check0();
79 list.add(1, "b");
80 assertEquals(Arrays.asList("a", "b", "d"), filteredList);
81 mlo.check1AddRemove(filteredList, Collections.<String>emptyList(), 1, 2);
82 }
83
84 @Test
85 public void testLiveMode_Remove() {
86 list.removeAll(Arrays.asList("c"));
87 assertEquals(Arrays.asList("a", "d"), filteredList);
88 mlo.check0();
89 mlo.clear();
90 list.remove("a");
91 assertEquals(Arrays.asList("d"), filteredList);
92 mlo.check1AddRemove(filteredList, Arrays.asList("a"), 0, 0);
93 }
94
95 @Test
96 public void testLiveMode_Permutation() {
97 FXCollections.sort(list, (o1, o2) -> -o1.compareTo(o2));
98 mlo.check1Permutation(filteredList, new int[] {1, 0});
99 assertEquals(Arrays.asList("d", "a"), filteredList);
100 }
101
102 @Test
103 public void testLiveMode_changeMatcher() {
104 ObjectProperty<Predicate<String>> pProperty = new SimpleObjectProperty<>();
105 pProperty.set((String e) -> !e.equals("c"));
106 filteredList = new FilteredList<>(list);
107 filteredList.predicateProperty().bind(pProperty);
108 filteredList.addListener(mlo);
109 assertEquals(Arrays.asList("a", "d"), filteredList);
110 mlo.check0();
111 pProperty.set((String s) -> !s.equals("d"));
112 mlo.check1AddRemove(filteredList, Arrays.asList("a", "d"), 0, 3);
113 }
114
115 @Test
116 public void testLiveMode_mutableElement() {
117 ObservableList<Person> list = Person.createPersonsList("A", "BB", "C");
118
119 FilteredList<Person> filtered = new FilteredList<>(list,
120 (Person p) -> p.name.get().length() > 1);
121 MockListObserver<Person> lo = new MockListObserver<>();
122 filtered.addListener(lo);
123
124 assertEquals(Arrays.asList(new Person("BB")), filtered);
125
126 list.get(0).name.set("AA");
127 lo.check1AddRemove(filtered, Collections.EMPTY_LIST, 0, 1);
128 assertEquals(Person.createPersonsList("AA", "BB"), filtered);
129
130 lo.clear();
131 list.get(1).name.set("BBB");
132 lo.check1Update(filtered, 1, 2);
133 assertEquals(Person.createPersonsList("AA", "BBB"), filtered);
134
135 lo.clear();
136 list.get(1).name.set("B");
137 lo.check1AddRemove(filtered, Person.createPersonsList("B"), 1, 1);
138 assertEquals(Person.createPersonsList("AA"), filtered);
139 }
140
141 @Test
142 public void testLiveMode_mutableElementEmptyList() {
143 ObservableList<Person> list = Person.createPersonsList("A", "B", "C");
144
145 FilteredList<Person> filtered = new FilteredList<>(list,
146 (Person p) -> p.name.get().length() > 1);
147 MockListObserver<Person> lo = new MockListObserver<>();
148 filtered.addListener(lo);
149
150 assertEquals(Collections.EMPTY_LIST, filtered);
151
152 list.get(0).name.set("AA");
153 lo.check1AddRemove(filtered, Collections.EMPTY_LIST, 0, 1);
154 assertEquals(Person.createPersonsList("AA"), filtered);
155 }
156
157 @Test
158 public void testLiveMode_mutableElements() {
159 Person p1 = new Person("A");
160 ObservableList<Person> list = Person.createPersonsList(
161 p1, p1, new Person("BB"), new Person("B"), p1, p1, new Person("BC"), p1, new Person("C"));
162
163 FilteredList<Person> filtered = new FilteredList<>(list,
164 (Person p) -> p.name.get().length() > 1);
165 MockListObserver<Person> lo = new MockListObserver<>();
166 filtered.addListener(lo);
167
168 assertEquals(Person.createPersonsList("BB", "BC"), filtered);
169
170 p1.name.set("AA");
171 lo.checkAddRemove(0, filtered, Collections.EMPTY_LIST, 0, 2);
172 lo.checkAddRemove(1, filtered, Collections.EMPTY_LIST, 3, 5);
173 lo.checkAddRemove(2, filtered, Collections.EMPTY_LIST, 6, 7);
174 assertEquals(Person.createPersonsList("AA", "AA", "BB", "AA", "AA", "BC", "AA"), filtered);
175
176 lo.clear();
177 p1.name.set("AAA");
178 lo.checkUpdate(0, filtered, 0, 2);
179 lo.checkUpdate(1, filtered, 3, 5);
180 lo.checkUpdate(2, filtered, 6, 7);
181 assertEquals(Person.createPersonsList("AAA", "AAA", "BB", "AAA", "AAA", "BC", "AAA"), filtered);
182
183 lo.clear();
184 p1.name.set("A");
185 lo.checkAddRemove(0, filtered, Person.createPersonsList("A", "A"), 0, 0);
186 lo.checkAddRemove(1, filtered, Person.createPersonsList("A", "A"), 1, 1);
187 lo.checkAddRemove(2, filtered, Person.createPersonsList("A"), 2, 2);
188 assertEquals(Person.createPersonsList( "BB", "BC"), filtered);
189 }
190
191 private static class Updater<E> extends ObservableListWrapper<E> {
192 public Updater(List<E> list) {
193 super(list);
194 }
195
196 public void update(int from, int to) {
197 ObservableListWrapperShim.beginChange(this);
198 for (int i = from; i < to; ++i) {
199 ObservableListWrapperShim.nextUpdate(this, i);
200 }
201 ObservableListWrapperShim.endChange(this);
202 }
203
204 public void updateAll() {
205 update(0, size());
206 }
207 }
208
209 @Test
210 public void testCustomMutableElements() {
211 Updater<Person> list = new Updater<>(Person.createPersonsFromNames(
212 "A0", "A1", "BB2", "B3", "A4", "A5", "BC6", "A7", "C8"));
213
214 FilteredList<Person> filtered = new FilteredList<>(list,
215 (Person p) -> p.name.get().length() > 2);
216 MockListObserver<Person> lo = new MockListObserver<>();
217 filtered.addListener(lo);
218
219 assertEquals(Person.createPersonsList("BB2", "BC6"), filtered);
220
221 list.updateAll();
222 lo.checkUpdate(0, filtered, 0, filtered.size());
223
224 lo.clear();
225 list.get(0).name.set("AA0");
226 list.get(3).name.set("BB3");
227 list.get(5).name.set("AA5");
228 list.get(6).name.set("B6");
229 list.get(7).name.set("AA7");
230 list.updateAll();
231 assertEquals(Person.createPersonsList("AA0", "BB2", "BB3", "AA5", "AA7"), filtered);
232 lo.checkAddRemove(0, filtered, Collections.EMPTY_LIST, 0, 1);
233 lo.checkAddRemove(1, filtered, Person.createPersonsList("B6"), 2, 5);
234 lo.checkUpdate(2, filtered, 1, 2);
235 }
236
237 @Test
238 public void testNullPredicate() {
239 filteredList.setPredicate(null);
240 assertEquals(list.size(), filteredList.size());
241 assertEquals(list, filteredList);
242 mlo.check1AddRemove(filteredList, Arrays.asList("a", "d"), 0, 4);
243 }
244
245 @Test
246 public void testSingleArgConstructor() {
247 filteredList = new FilteredList<>(list);
248 assertEquals(list.size(), filteredList.size());
249 assertEquals(list, filteredList);
250 }
251 }