| 1 |
/* |
| 2 |
* Copyright 2000 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 |
* CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 |
* have any questions. |
| 22 |
*/ |
| 23 |
|
| 24 |
/** |
| 25 |
* @test |
| 26 |
* @bug 4245809 |
| 27 |
* @summary Basic test for LinkedHashMap. (Based on MapBash) |
| 28 |
*/ |
| 29 |
|
| 30 |
import java.util.*; |
| 31 |
import java.io.*; |
| 32 |
|
| 33 |
public class Basic { |
| 34 |
static Random rnd = new Random(666); |
| 35 |
static Object nil = new Integer(0); |
| 36 |
|
| 37 |
public static void main(String[] args) throws Exception { |
| 38 |
int numItr = 500; |
| 39 |
int mapSize = 500; |
| 40 |
|
| 41 |
// Linked List test |
| 42 |
for (int i=0; i<numItr; i++) { |
| 43 |
Map m = new LinkedHashMap(); |
| 44 |
Object head = nil; |
| 45 |
|
| 46 |
for (int j=0; j<mapSize; j++) { |
| 47 |
Object newHead; |
| 48 |
do { |
| 49 |
newHead = new Integer(rnd.nextInt()); |
| 50 |
} while (m.containsKey(newHead)); |
| 51 |
m.put(newHead, head); |
| 52 |
head = newHead; |
| 53 |
} |
| 54 |
if (m.size() != mapSize) |
| 55 |
throw new Exception("Size not as expected."); |
| 56 |
|
| 57 |
if (new HashMap(m).hashCode() != m.hashCode()) |
| 58 |
throw new Exception("Incorrect hashCode computation."); |
| 59 |
|
| 60 |
Map m2 = new LinkedHashMap(); m2.putAll(m); |
| 61 |
m2.values().removeAll(m.keySet()); |
| 62 |
if (m2.size()!= 1 || !m2.containsValue(nil)) |
| 63 |
throw new Exception("Collection views test failed."); |
| 64 |
|
| 65 |
int j=0; |
| 66 |
while (head != nil) { |
| 67 |
if (!m.containsKey(head)) |
| 68 |
throw new Exception("Linked list doesn't contain a link."); |
| 69 |
Object newHead = m.get(head); |
| 70 |
if (newHead == null) |
| 71 |
throw new Exception("Could not retrieve a link."); |
| 72 |
m.remove(head); |
| 73 |
head = newHead; |
| 74 |
j++; |
| 75 |
} |
| 76 |
if (!m.isEmpty()) |
| 77 |
throw new Exception("Map nonempty after removing all links."); |
| 78 |
if (j != mapSize) |
| 79 |
throw new Exception("Linked list size not as expected."); |
| 80 |
} |
| 81 |
|
| 82 |
Map m = new LinkedHashMap(); |
| 83 |
for (int i=0; i<mapSize; i++) |
| 84 |
if (m.put(new Integer(i), new Integer(2*i)) != null) |
| 85 |
throw new Exception("put returns non-null value erroenously."); |
| 86 |
for (int i=0; i<2*mapSize; i++) |
| 87 |
if (m.containsValue(new Integer(i)) != (i%2==0)) |
| 88 |
throw new Exception("contains value "+i); |
| 89 |
if (m.put(nil, nil) == null) |
| 90 |
throw new Exception("put returns a null value erroenously."); |
| 91 |
Map m2 = new LinkedHashMap(); m2.putAll(m); |
| 92 |
if (!m.equals(m2)) |
| 93 |
throw new Exception("Clone not equal to original. (1)"); |
| 94 |
if (!m2.equals(m)) |
| 95 |
throw new Exception("Clone not equal to original. (2)"); |
| 96 |
Set s = m.entrySet(), s2 = m2.entrySet(); |
| 97 |
if (!s.equals(s2)) |
| 98 |
throw new Exception("Clone not equal to original. (3)"); |
| 99 |
if (!s2.equals(s)) |
| 100 |
throw new Exception("Clone not equal to original. (4)"); |
| 101 |
if (!s.containsAll(s2)) |
| 102 |
throw new Exception("Original doesn't contain clone!"); |
| 103 |
if (!s2.containsAll(s)) |
| 104 |
throw new Exception("Clone doesn't contain original!"); |
| 105 |
|
| 106 |
m2 = serClone(m); |
| 107 |
if (!m.equals(m2)) |
| 108 |
throw new Exception("Serialize Clone not equal to original. (1)"); |
| 109 |
if (!m2.equals(m)) |
| 110 |
throw new Exception("Serialize Clone not equal to original. (2)"); |
| 111 |
s = m.entrySet(); s2 = m2.entrySet(); |
| 112 |
if (!s.equals(s2)) |
| 113 |
throw new Exception("Serialize Clone not equal to original. (3)"); |
| 114 |
if (!s2.equals(s)) |
| 115 |
throw new Exception("Serialize Clone not equal to original. (4)"); |
| 116 |
if (!s.containsAll(s2)) |
| 117 |
throw new Exception("Original doesn't contain Serialize clone!"); |
| 118 |
if (!s2.containsAll(s)) |
| 119 |
throw new Exception("Serialize Clone doesn't contain original!"); |
| 120 |
|
| 121 |
s2.removeAll(s); |
| 122 |
if (!m2.isEmpty()) |
| 123 |
throw new Exception("entrySet().removeAll failed."); |
| 124 |
|
| 125 |
m2.putAll(m); |
| 126 |
m2.clear(); |
| 127 |
if (!m2.isEmpty()) |
| 128 |
throw new Exception("clear failed."); |
| 129 |
|
| 130 |
Iterator it = m.entrySet().iterator(); |
| 131 |
while(it.hasNext()) { |
| 132 |
it.next(); |
| 133 |
it.remove(); |
| 134 |
} |
| 135 |
if (!m.isEmpty()) |
| 136 |
throw new Exception("Iterator.remove() failed"); |
| 137 |
|
| 138 |
// Test ordering properties with insert order |
| 139 |
m = new LinkedHashMap(); |
| 140 |
List l = new ArrayList(mapSize); |
| 141 |
for (int i=0; i<mapSize; i++) { |
| 142 |
Integer x = new Integer(i); |
| 143 |
m.put(x, x); |
| 144 |
l.add(x); |
| 145 |
} |
| 146 |
if (!new ArrayList(m.keySet()).equals(l)) |
| 147 |
throw new Exception("Insertion order not preserved."); |
| 148 |
for (int i=mapSize-1; i>=0; i--) { |
| 149 |
Integer x = (Integer) l.get(i); |
| 150 |
if (!m.get(x).equals(x)) |
| 151 |
throw new Exception("Wrong value: "+i+", "+m.get(x)+", "+x); |
| 152 |
} |
| 153 |
if (!new ArrayList(m.keySet()).equals(l)) |
| 154 |
throw new Exception("Insertion order not preserved after read."); |
| 155 |
|
| 156 |
for (int i=mapSize-1; i>=0; i--) { |
| 157 |
Integer x = (Integer) l.get(i); |
| 158 |
m.put(x, x); |
| 159 |
} |
| 160 |
if (!new ArrayList(m.keySet()).equals(l)) |
| 161 |
throw new Exception("Insert order not preserved after reinsert."); |
| 162 |
|
| 163 |
m2 = (Map) ((LinkedHashMap)m).clone(); |
| 164 |
if (!m.equals(m2)) |
| 165 |
throw new Exception("Insert-order Map != clone."); |
| 166 |
|
| 167 |
List l2 = new ArrayList(l); |
| 168 |
Collections.shuffle(l2); |
| 169 |
for (int i=0; i<mapSize; i++) { |
| 170 |
Integer x = (Integer) l2.get(i); |
| 171 |
if (!m2.get(x).equals(x)) |
| 172 |
throw new Exception("Clone: Wrong val: "+i+", "+m.get(x)+", "+x); |
| 173 |
} |
| 174 |
if (!new ArrayList(m2.keySet()).equals(l)) |
| 175 |
throw new Exception("Clone: altered by read."); |
| 176 |
|
| 177 |
// Test ordering properties with access order |
| 178 |
m = new LinkedHashMap(1000, .75f, true); |
| 179 |
for (int i=0; i<mapSize; i++) { |
| 180 |
Integer x = new Integer(i); |
| 181 |
m.put(x, x); |
| 182 |
} |
| 183 |
if (!new ArrayList(m.keySet()).equals(l)) |
| 184 |
throw new Exception("Insertion order not properly preserved."); |
| 185 |
|
| 186 |
for (int i=0; i<mapSize; i++) { |
| 187 |
Integer x = (Integer) l2.get(i); |
| 188 |
if (!m.get(x).equals(x)) |
| 189 |
throw new Exception("Wrong value: "+i+", "+m.get(x)+", "+x); |
| 190 |
} |
| 191 |
if (!new ArrayList(m.keySet()).equals(l2)) |
| 192 |
throw new Exception("Insert order not properly altered by read."); |
| 193 |
|
| 194 |
for (int i=0; i<mapSize; i++) { |
| 195 |
Integer x = new Integer(i); |
| 196 |
m.put(x, x); |
| 197 |
} |
| 198 |
if (!new ArrayList(m.keySet()).equals(l)) |
| 199 |
throw new Exception("Insertion order not altered by reinsert."); |
| 200 |
|
| 201 |
m2 = (Map) ((LinkedHashMap)m).clone(); |
| 202 |
if (!m.equals(m2)) |
| 203 |
throw new Exception("Access-order Map != clone."); |
| 204 |
for (int i=0; i<mapSize; i++) { |
| 205 |
Integer x = (Integer) l.get(i); |
| 206 |
if (!m2.get(x).equals(x)) |
| 207 |
throw new Exception("Clone: Wrong val: "+i+", "+m.get(x)+", "+x); |
| 208 |
} |
| 209 |
if (!new ArrayList(m2.keySet()).equals(l)) |
| 210 |
throw new Exception("Clone: order not properly altered by read."); |
| 211 |
|
| 212 |
System.err.println("Success."); |
| 213 |
} |
| 214 |
|
| 215 |
private static Map serClone(Map m) { |
| 216 |
Map result = null; |
| 217 |
try { |
| 218 |
// Serialize |
| 219 |
ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| 220 |
ObjectOutputStream out = new ObjectOutputStream(bos); |
| 221 |
out.writeObject(m); |
| 222 |
out.flush(); |
| 223 |
|
| 224 |
// Deserialize |
| 225 |
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray()); |
| 226 |
out.close(); |
| 227 |
ObjectInputStream in = new ObjectInputStream(bis); |
| 228 |
result = (Map)in.readObject(); |
| 229 |
in.close(); |
| 230 |
} catch(Exception e) { |
| 231 |
e.printStackTrace(); |
| 232 |
} |
| 233 |
return result; |
| 234 |
} |
| 235 |
} |
