195 lines
7.5 KiB
Java
195 lines
7.5 KiB
Java
/*
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* Copyright (c) 2003, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4904067 5023830 7129185 8072015 8292955
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* @summary Unit test for Collections.checkedMap
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* @author Josh Bloch
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* @run testng CheckedMapBash
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* @key randomness
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*/
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import org.testng.Assert;
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import org.testng.annotations.DataProvider;
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import org.testng.annotations.Test;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Random;
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import java.util.Set;
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import java.util.TreeMap;
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import java.util.function.Supplier;
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import static org.testng.Assert.fail;
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public class CheckedMapBash {
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static final Random rnd = new Random();
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static final Object nil = new Integer(0);
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static final int numItr = 100;
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static final int mapSize = 100;
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@Test(dataProvider = "Bash.Supplier<Map<Integer,Integer>>")
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public static void testCheckedMap(String description, Supplier<Map<Integer,Integer>> supplier) {
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Map m = supplier.get();
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Object head = nil;
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for (int j=0; j<mapSize; j++) {
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Object newHead;
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do {
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newHead = new Integer(rnd.nextInt());
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} while (m.containsKey(newHead) || newHead.equals(nil));
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m.put(newHead, head);
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head = newHead;
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}
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if (m.size() != mapSize)
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fail("Size not as expected.");
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{
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HashMap hm = new HashMap(m);
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if (! (hm.hashCode() == m.hashCode() &&
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hm.entrySet().hashCode() == m.entrySet().hashCode() &&
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hm.keySet().hashCode() == m.keySet().hashCode()))
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fail("Incorrect hashCode computation.");
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if (! (hm.equals(m) &&
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hm.entrySet().equals(m.entrySet()) &&
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hm.keySet().equals(m.keySet()) &&
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m.equals(hm) &&
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m.entrySet().equals(hm.entrySet()) &&
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m.keySet().equals(hm.keySet())))
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fail("Incorrect equals computation.");
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}
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Map m2 = supplier.get(); m2.putAll(m);
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m2.values().removeAll(m.keySet());
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if (m2.size()!= 1 || !m2.containsValue(nil))
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fail("Collection views test failed.");
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int j=0;
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while (head != nil) {
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if (!m.containsKey(head))
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fail("Linked list doesn't contain a link.");
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Object newHead = m.get(head);
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if (newHead == null)
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fail("Could not retrieve a link.");
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m.remove(head);
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head = newHead;
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j++;
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}
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if (!m.isEmpty())
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fail("Map nonempty after removing all links.");
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if (j != mapSize)
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fail("Linked list size not as expected.");
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}
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@Test(dataProvider = "Supplier<Map<Integer,Integer>>")
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public static void testCheckedMap2(String description, Supplier<Map<Integer,Integer>> supplier) {
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Map m = supplier.get();
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for (int i=0; i<mapSize; i++)
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if (m.put(new Integer(i), new Integer(2*i)) != null)
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fail("put returns a non-null value erroneously.");
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for (int i=0; i<2*mapSize; i++)
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if (m.containsValue(new Integer(i)) != (i%2==0))
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fail("contains value "+i);
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if (m.put(nil, nil) == null)
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fail("put returns a null value erroneously.");
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Map m2 = supplier.get(); m2.putAll(m);
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if (!m.equals(m2))
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fail("Clone not equal to original. (1)");
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if (!m2.equals(m))
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fail("Clone not equal to original. (2)");
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Set s = m.entrySet(), s2 = m2.entrySet();
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if (!s.equals(s2))
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fail("Clone not equal to original. (3)");
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if (!s2.equals(s))
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fail("Clone not equal to original. (4)");
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if (!s.containsAll(s2))
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fail("Original doesn't contain clone!");
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if (!s2.containsAll(s))
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fail("Clone doesn't contain original!");
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s2.removeAll(s);
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if (!m2.isEmpty())
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fail("entrySet().removeAll failed.");
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m2.putAll(m);
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m2.clear();
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if (!m2.isEmpty())
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fail("clear failed.");
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Iterator i = m.entrySet().iterator();
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while (i.hasNext()) {
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i.next();
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i.remove();
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}
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if (!m.isEmpty())
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fail("Iterator.remove() failed");
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}
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@DataProvider(name = "Bash.Supplier<Map<Integer,Integer>>", parallel = true)
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public static Iterator<Object[]> bashNavigableMapProvider() {
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ArrayList<Object[]> iters = new ArrayList<>(makeCheckedMaps());
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iters.ensureCapacity(numItr * iters.size());
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for (int each=1; each < numItr; each++) {
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iters.addAll(makeCheckedMaps());
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}
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return iters.iterator();
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}
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@DataProvider(name = "Supplier<Map<Integer,Integer>>", parallel = true)
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public static Iterator<Object[]> navigableMapProvider() {
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return makeCheckedMaps().iterator();
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}
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public static Collection<Object[]> makeCheckedMaps() {
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Object[][] params = {
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{"Collections.checkedMap(HashMap)",
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(Supplier) () -> Collections.checkedMap(new HashMap(), Integer.class, Integer.class)},
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{"Collections.checkedMap(TreeMap(reverseOrder))",
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(Supplier) () -> Collections.checkedMap(new TreeMap(Collections.reverseOrder()), Integer.class, Integer.class)},
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{"Collections.checkedMap(TreeMap.descendingMap())",
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(Supplier) () -> Collections.checkedMap(new TreeMap().descendingMap(), Integer.class, Integer.class)},
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{"Collections.checkedNavigableMap(TreeMap)",
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(Supplier) () -> Collections.checkedNavigableMap(new TreeMap(), Integer.class, Integer.class)},
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{"Collections.checkedNavigableMap(TreeMap(reverseOrder))",
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(Supplier) () -> Collections.checkedNavigableMap(new TreeMap(Collections.reverseOrder()), Integer.class, Integer.class)},
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{"Collections.checkedNavigableMap(TreeMap.descendingMap())",
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(Supplier) () -> Collections.checkedNavigableMap(new TreeMap().descendingMap(), Integer.class, Integer.class)},
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};
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return Arrays.asList(params);
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}
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@Test(groups = "type_check")
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public static void testCheckedMapMerge() {
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Map m = Collections.checkedMap(new HashMap<>(), Integer.class, Integer.class);
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Assert.assertThrows(ClassCastException.class, () -> m.merge("key", "value", (v1, v2) -> null));
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Assert.assertThrows(ClassCastException.class, () -> m.merge("key", 3, (v1, v2) -> v2));
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}
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}
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