1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
* Copyright (c) 2008, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 5058133 6233345 6381699 6381702 6381705 6381706
* @summary Check that all one-char sequences can be encoded by all charsets
* @run main/timeout=1200 FindOneCharEncoderBugs
* @author Martin Buchholz
*/
import java.util.*;
import java.nio.*;
import java.nio.charset.*;
public class FindOneCharEncoderBugs {
final static String[] brokenCharsets = {
// Delete the following lines when these charsets are fixed!
"x-IBM970",
"x-COMPOUND_TEXT", // Direct buffers not supported
};
private static boolean equals(byte[] ba, ByteBuffer bb) {
if (ba.length != bb.limit())
return false;
for (int i = 0; i < ba.length; i++)
if (ba[i] != bb.get(i))
return false;
return true;
}
private static String toString(byte[] bytes) {
final StringBuilder sb = new StringBuilder();
for (byte b : bytes) {
if (sb.length() != 0) sb.append(' ');
sb.append(String.format("%02x", (int)b));
}
return sb.toString();
}
private static String toString(ByteBuffer bb) {
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < bb.limit(); i++) {
if (sb.length() != 0) sb.append(' ');
sb.append(String.format("%02x", (int)bb.get(i)));
}
return sb.toString();
}
private static ByteBuffer convert(Charset cs, char c, CharBuffer cb) throws Throwable {
cb.clear(); cb.put(c); cb.flip();
return cs.newEncoder()
.onUnmappableCharacter(CodingErrorAction.REPLACE)
.onMalformedInput(CodingErrorAction.REPLACE)
.encode(cb);
}
/** Returns a direct CharBuffer with the same capacity as ordinary CharBuffer ocb */
private static CharBuffer directCharBuffer(CharBuffer ocb) {
final CharBuffer dcb =
ByteBuffer.allocateDirect(ocb.capacity() * Character.SIZE / Byte.SIZE)
.asCharBuffer();
check(! ocb.isDirect());
check( dcb.isDirect());
equal(ocb.capacity(), dcb.capacity());
return dcb;
}
private static void testChar(byte[] expected, CharBuffer cb, Charset cs, char c) {
try {
final ByteBuffer bb = convert(cs, c, cb);
if (! equals(expected, bb))
fail("bytes differ charset=%s direct=%s char=\\u%04x%n%s%n%s",
cs, cb.isDirect(), (int)c,
toString(expected), toString(bb));
} catch (Throwable t) {
System.out.printf("Unexpected exception charset=%s direct=%s char=\\u%04x%n",
cs, cb.isDirect(), (int)c);
unexpected(t);
failed++;
}
}
private static void testCharset(Charset cs) throws Throwable {
if (! cs.canEncode())
return;
final String csn = cs.name();
for (String n : brokenCharsets)
if (csn.equals(n)) {
System.out.printf("Skipping possibly broken charset %s%n", csn);
return;
}
System.out.println(csn);
final char[] theChar = new char[1];
final CharBuffer ocb = CharBuffer.allocate(1);
final CharBuffer dcb = directCharBuffer(ocb);
final int maxFailuresPerCharset = 5;
final int failed0 = failed;
for (char c = '\u0000';
(c+1 != 0x10000) && (failed - failed0 < maxFailuresPerCharset);
c++) {
theChar[0] = c;
byte[] bytes = new String(theChar).getBytes(csn);
if (bytes.length == 0)
fail("Empty output?! charset=%s char=\\u%04x", cs, (int)c);
testChar(bytes, ocb, cs, c);
testChar(bytes, dcb, cs, c);
}
}
private static void realMain(String[] args) {
for (Charset cs : Charset.availableCharsets().values()) {
try { testCharset(cs); }
catch (Throwable t) { unexpected(t); }
}
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {passed++;}
static void fail() {failed++; Thread.dumpStack();}
static void fail(String format, Object... args) {
System.out.println(String.format(format, args)); failed++;}
static void fail(String msg) {System.out.println(msg); fail();}
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
static void check(boolean cond) {if (cond) pass(); else fail();}
static void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
try {realMain(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
private static abstract class CheckedThread extends Thread {
abstract void realRun() throws Throwable;
public void run() {
try {realRun();} catch (Throwable t) {unexpected(t);}}}
}
|
