--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/UUID/UUIDTest.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2003-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ * @bug 4173528 5068772
+ * @compile -source 1.4 -target 1.4 UUIDTest.java
+ * @run main UUIDTest
+ * @summary Unit tests for java.util.UUID
+ */
+
+import java.util.*;
+
+public class UUIDTest {
+
+ static Random generator = new Random();
+
+ public static void main(String[] args) throws Exception {
+ containsTest();
+ randomUUIDTest();
+ nameUUIDFromBytesTest();
+ stringTest();
+ versionTest();
+ variantTest();
+ timestampTest();
+ clockSequenceTest();
+ nodeTest();
+ hashCodeEqualsTest();
+ compareTo();
+ }
+
+ // Verify that list.contains detects UUID collisons
+ private static void containsTest() throws Exception {
+ List list = new LinkedList();
+ list.add(new UUID(4,4));
+ if (!list.contains(new UUID(4,4)))
+ throw new Exception("contains test did not work as expected");
+ }
+
+ private static void randomUUIDTest() throws Exception {
+ List list = new LinkedList();
+ for (int i=0; i<100; i++) {
+ UUID u1 = UUID.randomUUID();
+ if (list.contains(u1))
+ throw new Exception("random UUID collision very unlikely");
+ list.add(u1);
+ }
+ }
+
+ private static void nameUUIDFromBytesTest() throws Exception {
+ Random byteSource = new Random();
+ byte[] someBytes = new byte[12];
+ List list = new LinkedList();
+ for (int i=0; i<100; i++) {
+ byteSource.nextBytes(someBytes);
+ UUID test = UUID.nameUUIDFromBytes(someBytes);
+ if (list.contains(test))
+ throw new Exception("byte UUID collision very unlikely");
+ list.add(test);
+ }
+ }
+
+ private static void stringTest() throws Exception {
+ for (int i=0; i<100; i++) {
+ UUID u1 = UUID.randomUUID();
+ UUID u2 = UUID.fromString(u1.toString());
+ if (!u1.equals(u2))
+ throw new Exception("UUID -> string -> UUID failed");
+ }
+ }
+
+ private static void versionTest() throws Exception {
+ UUID test = UUID.randomUUID();
+ if (test.version() != 4)
+ throw new Exception("randomUUID not type 4");
+ Random byteSource = new Random();
+ byte[] someBytes = new byte[12];
+ byteSource.nextBytes(someBytes);
+ test = UUID.nameUUIDFromBytes(someBytes);
+ if (test.version() != 3)
+ throw new Exception("nameUUIDFromBytes not type 3");
+ test = UUID.fromString("9835451d-e2e0-1e41-8a5a-be785f17dcda");
+ if (test.version() != 1)
+ throw new Exception("wrong version fromString 1");
+ test = UUID.fromString("9835451d-e2e0-2e41-8a5a-be785f17dcda");
+ if (test.version() != 2)
+ throw new Exception("wrong version fromString 2");
+ test = UUID.fromString("9835451d-e2e0-3e41-8a5a-be785f17dcda");
+ if (test.version() != 3)
+ throw new Exception("wrong version fromString 3");
+ test = UUID.fromString("9835451d-e2e0-4e41-8a5a-be785f17dcda");
+ if (test.version() != 4)
+ throw new Exception("wrong version fromString 4");
+ test = new UUID(0x0000000000001000L, 55L);
+ if (test.version() != 1)
+ throw new Exception("wrong version from bit set to 1");
+ test = new UUID(0x0000000000002000L, 55L);
+ if (test.version() != 2)
+ throw new Exception("wrong version from bit set to 2");
+ test = new UUID(0x0000000000003000L, 55L);
+ if (test.version() != 3)
+ throw new Exception("wrong version from bit set to 3");
+ test = new UUID(0x0000000000004000L, 55L);
+ if (test.version() != 4)
+ throw new Exception("wrong version from bit set to 4");
+ }
+
+ private static void variantTest() throws Exception {
+ UUID test = UUID.randomUUID();
+ if (test.variant() != 2)
+ throw new Exception("randomUUID not variant 2");
+ Random byteSource = new Random();
+ byte[] someBytes = new byte[12];
+ byteSource.nextBytes(someBytes);
+ test = UUID.nameUUIDFromBytes(someBytes);
+ if (test.variant() != 2)
+ throw new Exception("nameUUIDFromBytes not variant 2");
+ test = new UUID(55L, 0x0000000000001000L);
+ if (test.variant() != 0)
+ throw new Exception("wrong variant from bit set to 0");
+ test = new UUID(55L, 0x8000000000001000L);
+ if (test.variant() != 2)
+ throw new Exception("wrong variant from bit set to 2");
+ test = new UUID(55L, 0xc000000000001000L);
+ if (test.variant() != 6)
+ throw new Exception("wrong variant from bit set to 6");
+ test = new UUID(55L, 0xe000000000001000L);
+ if (test.variant() != 7)
+ throw new Exception("wrong variant from bit set to 7");
+ }
+
+ private static void timestampTest() throws Exception {
+ UUID test = UUID.randomUUID();
+ try {
+ test.timestamp();
+ throw new Exception("Expected exception not thrown");
+ } catch (UnsupportedOperationException uoe) {
+ // Correct result
+ }
+ test = UUID.fromString("00000001-0000-1000-8a5a-be785f17dcda");
+ if (test.timestamp() != 1)
+ throw new Exception("Incorrect timestamp");
+ test = UUID.fromString("00000400-0000-1000-8a5a-be785f17dcda");
+ if (test.timestamp() != 1024)
+ throw new Exception("Incorrect timestamp");
+ test = UUID.fromString("FFFFFFFF-FFFF-1FFF-8a5a-be785f17dcda");
+ if (test.timestamp() != Long.MAX_VALUE>>3)
+ throw new Exception("Incorrect timestamp");
+ }
+
+ private static void clockSequenceTest() throws Exception {
+ UUID test = UUID.randomUUID();
+ try {
+ test.clockSequence();
+ throw new Exception("Expected exception not thrown");
+ } catch (UnsupportedOperationException uoe) {
+ // Correct result
+ }
+ test = UUID.fromString("00000001-0000-1000-8001-be785f17dcda");
+ if (test.clockSequence() != 1)
+ throw new Exception("Incorrect sequence");
+ test = UUID.fromString("00000001-0000-1000-8002-be785f17dcda");
+ if (test.clockSequence() != 2)
+ throw new Exception("Incorrect sequence");
+ test = UUID.fromString("00000001-0000-1000-8010-be785f17dcda");
+ if (test.clockSequence() != 16)
+ throw new Exception("Incorrect sequence");
+ test = UUID.fromString("00000001-0000-1000-bFFF-be785f17dcda");
+ if (test.clockSequence() != ((2L<<13)-1)) // 2^14 - 1
+ throw new Exception("Incorrect sequence");
+ }
+
+ private static void nodeTest() throws Exception {
+ UUID test = UUID.randomUUID();
+ try {
+ test.node();
+ throw new Exception("Expected exception not thrown");
+ } catch (UnsupportedOperationException uoe) {
+ // Correct result
+ }
+ test = UUID.fromString("00000001-0000-1000-8001-000000000001");
+ if (test.node() != 1)
+ throw new Exception("Incorrect node");
+ test = UUID.fromString("00000001-0000-1000-8002-FFFFFFFFFFFF");
+ if (test.node() != ((2L<<47)-1)) // 2^48 - 1
+ throw new Exception("Incorrect node");
+ }
+
+ private static void hashCodeEqualsTest() throws Exception {
+ // If two UUIDs are equal they must have the same hashCode
+ for (int i=0; i<100; i++) {
+ UUID u1 = UUID.randomUUID();
+ UUID u2 = UUID.fromString(u1.toString());
+ if (u1.hashCode() != u2.hashCode())
+ throw new Exception("Equal UUIDs with different hashcodes");
+ }
+ // Test equality of UUIDs with tampered bits
+ for (int i=0; i<1000; i++) {
+ long l = generator.nextLong();
+ long l2 = generator.nextLong();
+ int position = generator.nextInt(64);
+ UUID u1 = new UUID(l, l2);
+ l = l ^ (1L << position);
+ UUID u2 = new UUID(l, l2);
+ if (u1.equals(u2))
+ throw new Exception("UUIDs with different bits equal");
+ }
+ }
+
+ private static void compareTo() throws Exception {
+ UUID id = new UUID(33L, 63L);
+ UUID id2 = new UUID(34L, 62L);
+ UUID id3 = new UUID(34L, 63L);
+ UUID id4 = new UUID(34L, 64L);
+ UUID id5 = new UUID(35L, 63L);
+
+ if ((id.compareTo(id2) >= 0) ||
+ (id2.compareTo(id3) >= 0) ||
+ (id3.compareTo(id4) >= 0) ||
+ (id4.compareTo(id5) >= 0))
+ throw new RuntimeException("compareTo failure");
+
+ if ((id5.compareTo(id4) <= 0) ||
+ (id4.compareTo(id3) <= 0) ||
+ (id3.compareTo(id2) <= 0) ||
+ (id2.compareTo(id) <= 0))
+ throw new RuntimeException("compareTo failure");
+
+ if (id.compareTo(id) != 0)
+ throw new RuntimeException("compareTo failure");
+
+ }
+
+}