1/*
2 * Copyright (c) 2008, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/* @test
25   @bug 4890726
26   @summary Check the correctness of KOI8_U by comparing to KOI8_R
27 */
28
29import java.util.*;
30import static java.lang.Character.UnicodeBlock;
31
32public class UkrainianIsNotRussian {
33    private static String decode(byte[] bytes, String encoding) throws Throwable {
34        String s = new String(bytes, encoding);
35        equal(s.length(), 1);
36        check(Arrays.equals(s.getBytes(encoding), bytes));
37        return s;
38    }
39
40    private static void realMain(String[] args) throws Throwable {
41        final byte[] bytes = new byte[1];
42        int differences = 0;
43        for (int i = 0; i < 0xff; i++) {
44            bytes[0] = (byte) i;
45            final String r = decode(bytes, "KOI8_R");
46            final String u = decode(bytes, "KOI8_U");
47            if (! r.equals(u)) {
48                differences++;
49                final char rc = r.charAt(0);
50                final char uc = u.charAt(0);
51                final UnicodeBlock rcb = UnicodeBlock.of(rc);
52                final UnicodeBlock ucb = UnicodeBlock.of(uc);
53                System.out.printf("%02x => %04x %s, %04x %s%n",
54                                  i, (int) rc, rcb, (int) uc, ucb);
55                check(rcb == UnicodeBlock.BOX_DRAWING &&
56                      ucb == UnicodeBlock.CYRILLIC);
57            }
58        }
59        equal(differences, 8);
60    }
61
62    //--------------------- Infrastructure ---------------------------
63    static volatile int passed = 0, failed = 0;
64    static void pass() {passed++;}
65    static void fail() {failed++; Thread.dumpStack();}
66    static void fail(String msg) {System.out.println(msg); fail();}
67    static void unexpected(Throwable t) {failed++; t.printStackTrace();}
68    static void check(boolean cond) {if (cond) pass(); else fail();}
69    static void equal(Object x, Object y) {
70        if (x == null ? y == null : x.equals(y)) pass();
71        else fail(x + " not equal to " + y);}
72    public static void main(String[] args) throws Throwable {
73        try {realMain(args);} catch (Throwable t) {unexpected(t);}
74        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
75        if (failed > 0) throw new AssertionError("Some tests failed");}
76}
77