1 /*
2 * Copyright (c) 2012, 2014, 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 package test.com.sun.javafx.collections;
26
27 import com.sun.javafx.collections.MappingChange;
28 import com.sun.javafx.collections.NonIterableChange;
29 import java.util.Arrays;
30 import java.util.Collections;
31 import java.util.List;
32 import javafx.collections.FXCollections;
33 import javafx.collections.ListChangeListener.Change;
34 import javafx.collections.ObservableList;
35 import org.junit.Before;
36 import org.junit.Test;
37 import static org.junit.Assert.*;
38
39 public class MappingChangeTest {
40
41 ObservableList<Integer> originalList;
42 ObservableList<String> list;
43
44 @Before
45 public void setUp() {
46 originalList = FXCollections.observableArrayList(1, 2, 3, 4, 5);
47 list = FXCollections.observableArrayList("1", "2", "3", "4", "5");
48 }
49
50 @Test
51 public void testAddRemove() {
52 Change<Integer> change = new NonIterableChange.SimpleRemovedChange<Integer>(0, 1, new Integer(5), originalList);
53 MappingChange<Integer, String> mapChange = new MappingChange<Integer, String>(change,
54 e -> e.toString(), list);
55
56 assertTrue(mapChange.next());
57 assertEquals(0, mapChange.getFrom());
58 assertEquals(1, mapChange.getTo());
59 assertEquals(Arrays.asList("5"), mapChange.getRemoved());
60 assertNotNull(mapChange.toString());
61
62 assertFalse(mapChange.next());
63 }
64
65 @Test
66 public void testUpdate() {
67 Change<Integer> change = new NonIterableChange.SimpleUpdateChange<Integer>(0, 1, originalList);
68 MappingChange<Integer, String> mapChange = new MappingChange<Integer, String>(change,
69 e -> e.toString(), list);
70
71 assertTrue(mapChange.next());
72 assertEquals(0, mapChange.getFrom());
73 assertEquals(1, mapChange.getTo());
74 assertTrue(mapChange.wasUpdated());
75 assertNotNull(mapChange.toString());
76
77 assertFalse(mapChange.next());
78 }
79
80 @Test
81 public void testPermutation() {
82 Change<Integer> change = new NonIterableChange.SimplePermutationChange<Integer>(0, 2, new int[] {1, 0}, originalList);
83 MappingChange<Integer, String> mapChange = new MappingChange<Integer, String>(change,
84 e -> e.toString(), list);
85
86 assertTrue(mapChange.next());
87 assertEquals(0, mapChange.getFrom());
88 assertEquals(2, mapChange.getTo());
89 assertTrue(mapChange.wasPermutated());
90 assertNotNull(mapChange.toString());
91
92 assertFalse(mapChange.next());
93 }
94
95 @Test
96 public void testComplex() {
97 Change<Integer> change = new Change(originalList) {
98 int[][] added= new int[][]{ new int[] {0, 1}, new int[] {2, 3}, new int[] {4, 5}};
99
100 int pointer = -1;
101
102 @Override
103 public boolean next() {
104 if (pointer == added.length - 1) {
105 return false;
106 }
107 ++pointer;
108 return true;
109 }
110
111 @Override
112 public void reset() {
113 pointer = -1;
114 }
115
116 @Override
117 public int getFrom() {
118 return added[pointer][0];
119 }
120
121 @Override
122 public int getTo() {
123 return added[pointer][1];
124 }
125
126 @Override
127 public List getRemoved() {
128 return Collections.EMPTY_LIST;
129 }
130
131 @Override
132 protected int[] getPermutation() {
133 return new int[0];
134 }
135 };
136 MappingChange<Integer, String> mapChange = new MappingChange<Integer, String>(change,
137 e -> e.toString(), list);
138
139 assertTrue(mapChange.next());
140 assertEquals(0, mapChange.getFrom());
141 assertEquals(1, mapChange.getTo());
142 assertTrue(mapChange.wasAdded());
143 assertNotNull(mapChange.toString());
144
145 assertTrue(mapChange.next());
146 assertEquals(2, mapChange.getFrom());
147 assertEquals(3, mapChange.getTo());
148 assertTrue(mapChange.wasAdded());
149 assertNotNull(mapChange.toString());
150
151 assertTrue(mapChange.next());
152 assertEquals(4, mapChange.getFrom());
153 assertEquals(5, mapChange.getTo());
154 assertTrue(mapChange.wasAdded());
155 assertNotNull(mapChange.toString());
156
157 assertFalse(mapChange.next());
158 }
159 }