| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @run testng Wrappers |
| * @summary Ensure Collections wrapping classes provide non-default implementations |
| */ |
| |
| import java.lang.reflect.Method; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.TreeMap; |
| import java.util.TreeSet; |
| |
| import org.testng.annotations.Test; |
| import org.testng.annotations.DataProvider; |
| |
| import static org.testng.Assert.assertFalse; |
| |
| @Test(groups = "unit") |
| public class Wrappers { |
| static Object[][] collections; |
| |
| @DataProvider(name="collections") |
| public static Object[][] collectionCases() { |
| if (collections != null) { |
| return collections; |
| } |
| |
| List<Object[]> cases = new ArrayList<>(); |
| LinkedList<Integer> seedList = new LinkedList<>(); |
| ArrayList<Integer> seedRandomAccess = new ArrayList<>(); |
| TreeSet<Integer> seedSet = new TreeSet<>(); |
| TreeMap<Integer, Integer> seedMap = new TreeMap<>(); |
| |
| for (int i = 1; i <= 10; i++) { |
| seedList.add(i); |
| seedRandomAccess.add(i); |
| seedSet.add(i); |
| seedMap.put(i, i); |
| } |
| |
| cases.add(new Object[] { Collections.unmodifiableCollection(seedList) }); |
| cases.add(new Object[] { Collections.unmodifiableList(seedList) }); |
| cases.add(new Object[] { Collections.unmodifiableList(seedRandomAccess) }); |
| cases.add(new Object[] { Collections.unmodifiableSet(seedSet) }); |
| cases.add(new Object[] { Collections.unmodifiableSortedSet(seedSet) }); |
| cases.add(new Object[] { Collections.unmodifiableNavigableSet(seedSet) }); |
| |
| // As sets from map also need to be unmodifiable, thus a wrapping |
| // layer exist and should not have default methods |
| cases.add(new Object[] { Collections.unmodifiableMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.unmodifiableMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.unmodifiableMap(seedMap).values() }); |
| cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.unmodifiableSortedMap(seedMap).values() }); |
| cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.unmodifiableNavigableMap(seedMap).values() }); |
| |
| // Synchronized |
| cases.add(new Object[] { Collections.synchronizedCollection(seedList) }); |
| cases.add(new Object[] { Collections.synchronizedList(seedList) }); |
| cases.add(new Object[] { Collections.synchronizedList(seedRandomAccess) }); |
| cases.add(new Object[] { Collections.synchronizedSet(seedSet) }); |
| cases.add(new Object[] { Collections.synchronizedSortedSet(seedSet) }); |
| cases.add(new Object[] { Collections.synchronizedNavigableSet(seedSet) }); |
| |
| // As sets from map also need to be synchronized on the map, thus a |
| // wrapping layer exist and should not have default methods |
| cases.add(new Object[] { Collections.synchronizedMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.synchronizedMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.synchronizedMap(seedMap).values() }); |
| cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.synchronizedSortedMap(seedMap).values() }); |
| cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).entrySet() }); |
| cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).keySet() }); |
| cases.add(new Object[] { Collections.synchronizedNavigableMap(seedMap).values() }); |
| |
| // Checked |
| cases.add(new Object[] { Collections.checkedCollection(seedList, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedList(seedList, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedList(seedRandomAccess, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedSet(seedSet, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedSortedSet(seedSet, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedNavigableSet(seedSet, Integer.class) }); |
| cases.add(new Object[] { Collections.checkedQueue(seedList, Integer.class) }); |
| |
| // asLifoQueue is another wrapper |
| cases.add(new Object[] { Collections.asLifoQueue(seedList) }); |
| |
| collections = cases.toArray(new Object[0][]); |
| return collections; |
| } |
| |
| static Method[] defaultMethods; |
| |
| static { |
| List<Method> list = new ArrayList<>(); |
| Method[] methods = Collection.class.getMethods(); |
| for (Method m: methods) { |
| if (m.isDefault()) { |
| list.add(m); |
| } |
| } |
| defaultMethods = list.toArray(new Method[0]); |
| } |
| |
| @Test(dataProvider = "collections") |
| public static void testAllDefaultMethodsOverridden(Collection c) throws NoSuchMethodException { |
| Class cls = c.getClass(); |
| for (Method m: defaultMethods) { |
| Method m2 = cls.getMethod(m.getName(), m.getParameterTypes()); |
| // default had been override |
| assertFalse(m2.isDefault(), cls.getCanonicalName()); |
| } |
| } |
| } |
| |