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* 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.
*
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*/
/* @test
* @bug 4712786
* @summary Check charsets against reference files
*
* @build Util
* @run main Check shift_jis ref.shift_jis
* @run main/othervm -Dsun.nio.cs.map=Windows-31J/Shift_JIS Check shift_jis ref.windows-31j
*/
import java.io.*;
import java.nio.*;
import java.nio.channels.*;
import java.nio.charset.*;
import java.util.*;
import java.util.regex.*;
public class Check {
private static PrintStream log = System.err;
private static final int UNICODE_SIZE = (1 << 16);
private final String csName;
private final String refName;
private byte[][] bytes = new byte[UNICODE_SIZE][]; // Indexed by char
private int errors = 0;
private Check(String csn, String refn) {
csName = csn;
refName = refn;
}
private Check load()
throws IOException
{
File fn = new File(System.getProperty("test.src", "."), refName);
FileChannel fc = new FileInputStream(fn).getChannel();
ByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
CharBuffer cb = Charset.forName("US-ASCII").decode(bb);
Pattern p = Pattern.compile("^(\\p{XDigit}+) +(\\p{XDigit}+)$",
Pattern.MULTILINE);
Matcher m = p.matcher(cb);
while (m.find()) {
char c = (char)Integer.parseInt(m.group(1), 16);
String v = m.group(2);
int nb = v.length() >> 1;
byte[] ba = new byte[nb];
for (int i = 0; i < nb; i++) {
ba[i] = (byte)Integer.parseInt(v.substring(i << 1, (i << 1) + 2),
16);
}
bytes[c] = ba;
}
return this;
}
private void error() {
if (++errors >= 100)
throw new RuntimeException("100 errors occurred (there might be more)");
}
private void mismatch(String s, byte[] expected, byte[] got) {
log.println("Encoding mismatch on \""
+ Util.toString(s)
+ "\": Expected {"
+ Util.toString(expected)
+ "}, got {"
+ Util.toString(got)
+ "}");
error();
}
private void mismatch(int i, byte[] ba, String expected, String got) {
log.println("Decoding mismatch on \""
+ Util.toString((char)i)
+ "\", input {"
+ Util.toString(ba)
+ "}: Expected \""
+ Util.toString(expected)
+ "\", got \""
+ Util.toString(got)
+ "\"");
error();
}
private void check()
throws IOException
{
// String.getBytes(String csn)
for (int i = 0; i < UNICODE_SIZE; i++) {
if (bytes[i] == null)
continue;
String s = new String(new char[]{ (char)i });
byte[] ba = s.getBytes(csName);
if (Util.cmp(ba, bytes[i]) >= 0)
mismatch(s, bytes[i], ba);
}
log.println("String.getBytes(\"" + csName + "\") okay");
// String(byte[] ba, String csn)
for (int i = 0; i < UNICODE_SIZE; i++) {
if (bytes[i] == null)
continue;
String r = new String(new char[]{ (char)i });
String s = new String(bytes[i], csName);
if (!r.equals(s))
mismatch(i, bytes[i], r, s);
}
log.println("String(byte[] ba, \"" + csName + "\") okay");
// To be really thorough we should test OutputStreamWriter,
// InputStreamReader, and Charset{De,En}Coder here also,
// but the above will do for now.
if (errors > 0) {
throw new RuntimeException(errors + " error(s) occurred");
}
}
// Usage: Check charsetName referenceFileName
public static void main(String[] args) throws Exception {
new Check(args[0], args[1]).load().check();
}
}