1/* 2 * Copyright (c) 2010, 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 4712786 26 * @summary Check charsets against reference files 27 * @modules jdk.charsets 28 * 29 * @build Util 30 * @run main Check shift_jis ref.shift_jis 31 * @run main/othervm -Dsun.nio.cs.map=Windows-31J/Shift_JIS Check shift_jis ref.windows-31j 32 */ 33 34import java.io.*; 35import java.nio.*; 36import java.nio.channels.*; 37import java.nio.charset.*; 38import java.util.*; 39import java.util.regex.*; 40 41 42public class Check { 43 44 private static PrintStream log = System.err; 45 46 private static final int UNICODE_SIZE = (1 << 16); 47 48 private final String csName; 49 private final String refName; 50 private byte[][] bytes = new byte[UNICODE_SIZE][]; // Indexed by char 51 52 private int errors = 0; 53 54 private Check(String csn, String refn) { 55 csName = csn; 56 refName = refn; 57 } 58 59 private Check load() 60 throws IOException 61 { 62 File fn = new File(System.getProperty("test.src", "."), refName); 63 FileChannel fc = new FileInputStream(fn).getChannel(); 64 ByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size()); 65 CharBuffer cb = Charset.forName("US-ASCII").decode(bb); 66 Pattern p = Pattern.compile("^(\\p{XDigit}+) +(\\p{XDigit}+)$", 67 Pattern.MULTILINE); 68 Matcher m = p.matcher(cb); 69 while (m.find()) { 70 char c = (char)Integer.parseInt(m.group(1), 16); 71 String v = m.group(2); 72 int nb = v.length() >> 1; 73 byte[] ba = new byte[nb]; 74 for (int i = 0; i < nb; i++) { 75 ba[i] = (byte)Integer.parseInt(v.substring(i << 1, (i << 1) + 2), 76 16); 77 } 78 bytes[c] = ba; 79 } 80 return this; 81 } 82 83 private void error() { 84 if (++errors >= 100) 85 throw new RuntimeException("100 errors occurred (there might be more)"); 86 } 87 88 private void mismatch(String s, byte[] expected, byte[] got) { 89 log.println("Encoding mismatch on \"" 90 + Util.toString(s) 91 + "\": Expected {" 92 + Util.toString(expected) 93 + "}, got {" 94 + Util.toString(got) 95 + "}"); 96 error(); 97 } 98 99 private void mismatch(int i, byte[] ba, String expected, String got) { 100 log.println("Decoding mismatch on \"" 101 + Util.toString((char)i) 102 + "\", input {" 103 + Util.toString(ba) 104 + "}: Expected \"" 105 + Util.toString(expected) 106 + "\", got \"" 107 + Util.toString(got) 108 + "\""); 109 error(); 110 } 111 112 private void check() 113 throws IOException 114 { 115 116 // String.getBytes(String csn) 117 for (int i = 0; i < UNICODE_SIZE; i++) { 118 if (bytes[i] == null) 119 continue; 120 String s = new String(new char[]{ (char)i }); 121 byte[] ba = s.getBytes(csName); 122 if (Util.cmp(ba, bytes[i]) >= 0) 123 mismatch(s, bytes[i], ba); 124 } 125 log.println("String.getBytes(\"" + csName + "\") okay"); 126 127 // String(byte[] ba, String csn) 128 for (int i = 0; i < UNICODE_SIZE; i++) { 129 if (bytes[i] == null) 130 continue; 131 String r = new String(new char[]{ (char)i }); 132 String s = new String(bytes[i], csName); 133 if (!r.equals(s)) 134 mismatch(i, bytes[i], r, s); 135 } 136 log.println("String(byte[] ba, \"" + csName + "\") okay"); 137 138 // To be really thorough we should test OutputStreamWriter, 139 // InputStreamReader, and Charset{De,En}Coder here also, 140 // but the above will do for now. 141 142 if (errors > 0) { 143 throw new RuntimeException(errors + " error(s) occurred"); 144 } 145 146 } 147 148 // Usage: Check charsetName referenceFileName 149 public static void main(String[] args) throws Exception { 150 new Check(args[0], args[1]).load().check(); 151 } 152 153} 154