UUIDTest.java revision 2362
2362N/A * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. 2362N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 0N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 0N/A * or visit www.oracle.com if you need additional information or have any 0N/A * @bug 4173528 5068772 0N/A * @summary Unit tests for java.util.UUID 0N/A // Verify that list.contains detects UUID collisons throw new Exception(
"contains test did not work as expected");
for (
int i=
0; i<
100; i++) {
throw new Exception(
"random UUID collision very unlikely");
for (
int i=
0; i<
100; i++) {
throw new Exception(
"byte UUID collision very unlikely");
for (
int i=
0; i<
100; i++) {
throw new Exception(
"UUID -> string -> UUID failed");
throw new Exception(
"randomUUID not type 4");
throw new Exception(
"nameUUIDFromBytes not type 3");
throw new Exception(
"wrong version fromString 1");
throw new Exception(
"wrong version fromString 2");
throw new Exception(
"wrong version fromString 3");
throw new Exception(
"wrong version fromString 4");
test =
new UUID(
0x0000000000001000L,
55L);
throw new Exception(
"wrong version from bit set to 1");
test =
new UUID(
0x0000000000002000L,
55L);
throw new Exception(
"wrong version from bit set to 2");
test =
new UUID(
0x0000000000003000L,
55L);
throw new Exception(
"wrong version from bit set to 3");
test =
new UUID(
0x0000000000004000L,
55L);
throw new Exception(
"wrong version from bit set to 4");
throw new Exception(
"randomUUID not variant 2");
throw new Exception(
"nameUUIDFromBytes not variant 2");
test =
new UUID(
55L,
0x0000000000001000L);
throw new Exception(
"wrong variant from bit set to 0");
test =
new UUID(
55L,
0x8000000000001000L);
throw new Exception(
"wrong variant from bit set to 2");
test =
new UUID(
55L,
0xc000000000001000L);
throw new Exception(
"wrong variant from bit set to 6");
test =
new UUID(
55L,
0xe000000000001000L);
throw new Exception(
"wrong variant from bit set to 7");
throw new Exception(
"Expected exception not thrown");
throw new Exception(
"Expected exception not thrown");
throw new Exception(
"Expected exception not thrown");
if (
test.
node() != ((
2L<<
47)-
1))
// 2^48 - 1 // If two UUIDs are equal they must have the same hashCode for (
int i=
0; i<
100; i++) {
throw new Exception(
"Equal UUIDs with different hashcodes");
// Test equality of UUIDs with tampered bits for (
int i=
0; i<
1000; i++) {
throw new Exception(
"UUIDs with different bits equal");