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/* |
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* Copyright 2003-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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|
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/* |
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* @test |
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* @bug 4904067 5023830 |
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* @summary Unit test for Collections.checkedMap |
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* @author Josh Bloch |
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*/ |
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|
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import java.util.*; |
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|
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public class CheckedMapBash { |
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static Random rnd = new Random(); |
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static Object nil = new Integer(0); |
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|
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public static void main(String[] args) { |
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int numItr = 100; |
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int mapSize = 100; |
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|
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// Linked List test |
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for (int i=0; i<numItr; i++) { |
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Map m = newMap(); |
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Object head = nil; |
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|
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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)); |
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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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{ |
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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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|
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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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|
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Map m2 = newMap(); 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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|
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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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|
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Map m = newMap(); |
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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 erroenously."); |
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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 erroenously."); |
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Map m2 = newMap(); 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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|
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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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|
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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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|
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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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|
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static Map newMap() { |
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Map m = Collections.checkedMap(new HashMap(), |
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Integer.class, Integer.class); |
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|
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if (!m.isEmpty()) |
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fail("New instance non empty."); |
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return m; |
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} |
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|
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static void fail(String s) { |
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throw new RuntimeException(s); |
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} |
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} |
