1 /*
2 * Copyright (c) 2013, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @run testng Wrappers
27 * @summary Ensure Collections wrapping classes provide non-default implementations
28 */
29
30 import java.lang.reflect.Method;
31 import java.util.ArrayList;
32 import java.util.Collection;
33 import java.util.Collections;
34 import java.util.LinkedList;
35 import java.util.List;
36 import java.util.Objects;
37 import java.util.TreeMap;
38 import java.util.TreeSet;
39
40 import org.testng.annotations.Test;
41 import org.testng.annotations.DataProvider;
42
main(String[] args)43 import static org.testng.Assert.assertFalse;
44
45 @Test(groups = "unit")
46 public class Wrappers {
47 static Object[][] collections;
48
49 @DataProvider(name="collections")
50 public static Object[][] collectionCases() {
51 if (collections != null) {
52 return collections;
53 }
54
55 List<Object[]> cases = new ArrayList<>();
56 LinkedList<Integer> seedList = new LinkedList<>();
57 ArrayList<Integer> seedRandomAccess = new ArrayList<>();
58 TreeSet<Integer> seedSet = new TreeSet<>();
59 TreeMap<Integer, Integer> seedMap = new TreeMap<>();
60
61 for (int i = 1; i <= 10; i++) {
62 seedList.add(i);
63 seedRandomAccess.add(i);
64 seedSet.add(i);
65 seedMap.put(i, i);
66 }
67
68 cases.add(new Object[] { Collections.unmodifiableCollection(seedList) });
69 cases.add(new Object[] { Collections.unmodifiableList(seedList) });
70 cases.add(new Object[] { Collections.unmodifiableList(seedRandomAccess) });
71 cases.add(new Object[] { Collections.unmodifiableSet(seedSet) });
72 cases.add(new Object[] { Collections.unmodifiableSortedSet(seedSet) });
73 cases.add(new Object[] { Collections.unmodifiableNavigableSet(seedSet) });
74
75 // As sets from map also need to be unmodifiable, thus a wrapping
76 // layer exist and should not have default methods
77 cases.add(new Object[] { Collections.unmodifiableMap(seedMap).entrySet() });
78 cases.add(new Object[] { Collections.unmodifiableMap(seedMap).keySet() });
79 cases.add(new Object[] { Collections.unmodifiableMap(seedMap).values() });
80 cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).entrySet() });
81 cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).keySet() });
82 cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).values() });
83 cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).entrySet() });
84 cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).keySet() });
85 cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).values() });
86
87 // Synchronized
88 cases.add(new Object[] { Collections.synchronizedCollection(seedList) });
89 cases.add(new Object[] { Collections.synchronizedList(seedList) });
90 cases.add(new Object[] { Collections.synchronizedList(seedRandomAccess) });
91 cases.add(new Object[] { Collections.synchronizedSet(seedSet) });
92 cases.add(new Object[] { Collections.synchronizedSortedSet(seedSet) });
93 cases.add(new Object[] { Collections.synchronizedNavigableSet(seedSet) });
94
95 // As sets from map also need to be synchronized on the map, thus a
96 // wrapping layer exist and should not have default methods
97 cases.add(new Object[] { Collections.synchronizedMap(seedMap).entrySet() });
98 cases.add(new Object[] { Collections.synchronizedMap(seedMap).keySet() });
99 cases.add(new Object[] { Collections.synchronizedMap(seedMap).values() });
100 cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).entrySet() });
101 cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).keySet() });
102 cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).values() });
103 cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).entrySet() });
104 cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).keySet() });
105 cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).values() });
106
107 // Checked
108 cases.add(new Object[] { Collections.checkedCollection(seedList, Integer.class) });
109 cases.add(new Object[] { Collections.checkedList(seedList, Integer.class) });
110 cases.add(new Object[] { Collections.checkedList(seedRandomAccess, Integer.class) });
111 cases.add(new Object[] { Collections.checkedSet(seedSet, Integer.class) });
112 cases.add(new Object[] { Collections.checkedSortedSet(seedSet, Integer.class) });
113 cases.add(new Object[] { Collections.checkedNavigableSet(seedSet, Integer.class) });
114 cases.add(new Object[] { Collections.checkedQueue(seedList, Integer.class) });
115
116 // asLifoQueue is another wrapper
117 cases.add(new Object[] { Collections.asLifoQueue(seedList) });
118
119 collections = cases.toArray(new Object[0][]);
120 return collections;
121 }
122
123 static Method[] defaultMethods;
124
125 static {
126 List<Method> list = new ArrayList<>();
127 Method[] methods = Collection.class.getMethods();
128 for (Method m: methods) {
129 if (m.isDefault()) {
130 list.add(m);
131 }
132 }
133 defaultMethods = list.toArray(new Method[0]);
134 }
135
136 @Test(dataProvider = "collections")
137 public static void testAllDefaultMethodsOverridden(Collection c) throws NoSuchMethodException {
138 Class cls = c.getClass();
139 for (Method m: defaultMethods) {
140 Method m2 = cls.getMethod(m.getName(), m.getParameterTypes());
141 // default had been override
142 assertFalse(m2.isDefault(), cls.getCanonicalName());
143 }
144 }
145 }
146
147