1 /*
   2  * Copyright (c) 2000, 2013, 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 6636323 6636319 7040220 7096080 7183053
  26    @summary Test if StringCoding and NIO result have the same de/encoding result
  27  * @run main/othervm/timeout=2000 TestStringCoding

  28  */
  29 
  30 import java.util.*;
  31 import java.nio.*;
  32 import java.nio.charset.*;
  33 
  34 public class TestStringCoding {
  35     public static void main(String[] args) throws Throwable {
  36 
  37         for (Boolean hasSM: new boolean[] { false, true }) {
  38             if (hasSM)
  39                 System.setSecurityManager(new PermissiveSecurityManger());
  40             for (Charset cs:  Charset.availableCharsets().values()) {
  41                 if ("ISO-2022-CN".equals(cs.name()) ||
  42                     "x-COMPOUND_TEXT".equals(cs.name()) ||
  43                     "x-JISAutoDetect".equals(cs.name()))
  44                     continue;
  45                 System.out.printf("Testing(sm=%b) " + cs.name() + "....", hasSM);
  46                 // full bmp first
  47                 char[] bmpCA = new char[0x10000];
  48                 for (int i = 0; i < 0x10000; i++) {
  49                      bmpCA[i] = (char)i;
  50                 }
  51                 byte[] sbBA = new byte[0x100];
  52                 for (int i = 0; i < 0x100; i++) {
  53                     sbBA[i] = (byte)i;
  54                 }
  55                 test(cs, bmpCA, sbBA);
  56                 // "randomed" sizes
  57                 Random rnd = new Random();
  58                 for (int i = 0; i < 10; i++) {
  59                     int clen = rnd.nextInt(0x10000);
  60                     int blen = rnd.nextInt(0x100);
  61                     //System.out.printf("    blen=%d, clen=%d%n", blen, clen);
  62                     test(cs, Arrays.copyOf(bmpCA, clen), Arrays.copyOf(sbBA, blen));
  63                     //add a pair of surrogates
  64                     int pos = clen / 2;
  65                     if ((pos + 1) < blen) {
  66                         bmpCA[pos] = '\uD800';
  67                         bmpCA[pos+1] = '\uDC00';
  68                     }
  69                     test(cs, Arrays.copyOf(bmpCA, clen), Arrays.copyOf(sbBA, blen));
  70                 }
  71 
  72                 testMixed(cs);
  73                 System.out.println("done!");
  74             }
  75         }
  76     }
  77 
  78     static void testMixed(Charset cs) throws Throwable {
  79         CharsetDecoder dec = cs.newDecoder()
  80             .onMalformedInput(CodingErrorAction.REPLACE)
  81             .onUnmappableCharacter(CodingErrorAction.REPLACE);
  82         CharsetEncoder enc = cs.newEncoder()
  83             .onMalformedInput(CodingErrorAction.REPLACE)
  84             .onUnmappableCharacter(CodingErrorAction.REPLACE);
  85         List<Integer> cps = new ArrayList<>(0x10000);
  86         int off = 0;
  87         int cp = 0;
  88         while (cp < 0x10000) {
  89             if (enc.canEncode((char)cp)) {
  90                cps.add(cp);
  91             }
  92             cp++;
  93         }
  94         Collections.shuffle(cps);
  95         char[] bmpCA = new char[cps.size()];
  96         for (int i = 0; i < cps.size(); i++)
  97             bmpCA[i] = (char)(int)cps.get(i);
  98         String bmpStr = new String(bmpCA);
  99         //getBytes(csn);
 100         byte[] bmpBA = bmpStr.getBytes(cs.name());
 101         ByteBuffer bf = enc.reset().encode(CharBuffer.wrap(bmpCA));
 102         byte[] baNIO = new byte[bf.limit()];
 103         bf.get(baNIO, 0, baNIO.length);
 104         if (!Arrays.equals(bmpBA, baNIO)) {
 105             throw new RuntimeException("getBytes(csn) failed  -> " + cs.name());
 106         }
 107 
 108         //getBytes(cs);
 109         bmpBA = bmpStr.getBytes(cs);
 110         if (!Arrays.equals(bmpBA, baNIO))
 111             throw new RuntimeException("getBytes(cs) failed  -> " + cs.name());
 112 
 113         //new String(csn);
 114         String strSC = new String(bmpBA, cs.name());
 115         String strNIO = dec.reset().decode(ByteBuffer.wrap(bmpBA)).toString();
 116         if(!strNIO.equals(strSC)) {
 117             throw new RuntimeException("new String(csn) failed  -> " + cs.name());
 118         }
 119 
 120         //new String(cs);
 121         strSC = new String(bmpBA, cs);
 122         if (!strNIO.equals(strSC))
 123             throw new RuntimeException("new String(cs) failed  -> " + cs.name());
 124 
 125     }
 126 
 127     static void test(Charset cs, char[] bmpCA, byte[] sbBA) throws Throwable {
 128         String bmpStr = new String(bmpCA);
 129         CharsetDecoder dec = cs.newDecoder()
 130             .onMalformedInput(CodingErrorAction.REPLACE)
 131             .onUnmappableCharacter(CodingErrorAction.REPLACE);
 132         CharsetEncoder enc = cs.newEncoder()
 133             .onMalformedInput(CodingErrorAction.REPLACE)
 134             .onUnmappableCharacter(CodingErrorAction.REPLACE);
 135 
 136         //getBytes(csn);
 137         byte[] baSC = bmpStr.getBytes(cs.name());
 138         ByteBuffer bf = enc.reset().encode(CharBuffer.wrap(bmpCA));
 139         byte[] baNIO = new byte[bf.limit()];
 140         bf.get(baNIO, 0, baNIO.length);
 141         if (!Arrays.equals(baSC, baNIO))
 142             throw new RuntimeException("getBytes(csn) failed  -> " + cs.name());
 143 
 144         //getBytes(cs);
 145         baSC = bmpStr.getBytes(cs);
 146         if (!Arrays.equals(baSC, baNIO))
 147             throw new RuntimeException("getBytes(cs) failed  -> " + cs.name());
 148 
 149         //new String(csn);
 150         String strSC = new String(sbBA, cs.name());
 151         String strNIO = dec.reset().decode(ByteBuffer.wrap(sbBA)).toString();
 152 
 153         if(!strNIO.equals(strSC))
 154             throw new RuntimeException("new String(csn) failed  -> " + cs.name());
 155 
 156         //new String(cs);
 157         strSC = new String(sbBA, cs);
 158         if (!strNIO.equals(strSC))
 159             throw new RuntimeException("new String(cs) failed  -> " + cs.name());
 160 
 161         //encode unmappable surrogates
 162         if (enc instanceof sun.nio.cs.ArrayEncoder &&
 163             cs.contains(Charset.forName("ASCII"))) {
 164             if (cs.name().equals("UTF-8") ||     // utf8 handles surrogates
 165                 cs.name().equals("CESU-8"))      // utf8 handles surrogates
 166                 return;
 167             enc.replaceWith(new byte[] { (byte)'A'});
 168             sun.nio.cs.ArrayEncoder cae = (sun.nio.cs.ArrayEncoder)enc;
 169 
 170             String str = "ab\uD800\uDC00\uD800\uDC00cd";
 171             byte[] ba = new byte[str.length() - 2];
 172             int n = cae.encode(str.toCharArray(), 0, str.length(), ba);
 173             if (n != 6 || !"abAAcd".equals(new String(ba, cs.name())))
 174                 throw new RuntimeException("encode1(surrogates) failed  -> "
 175                                            + cs.name());
 176 
 177             ba = new byte[str.length()];
 178             n = cae.encode(str.toCharArray(), 0, str.length(), ba);
 179             if (n != 6 || !"abAAcd".equals(new String(ba, 0, n,
 180                                                      cs.name())))
 181                 throw new RuntimeException("encode2(surrogates) failed  -> "
 182                                            + cs.name());
 183             str = "ab\uD800B\uDC00Bcd";
 184             ba = new byte[str.length()];
 185             n = cae.encode(str.toCharArray(), 0, str.length(), ba);
 186             if (n != 8 || !"abABABcd".equals(new String(ba, 0, n,
 187                                                        cs.name())))
 188                 throw new RuntimeException("encode3(surrogates) failed  -> "
 189                                            + cs.name());
 190             /* sun.nio.cs.ArrayDeEncoder works on the assumption that the
 191                invoker (StringCoder) allocates enough output buf, utf8
 192                and double-byte coder does not check the output buffer limit.
 193             ba = new byte[str.length() - 1];
 194             n = cae.encode(str.toCharArray(), 0, str.length(), ba);
 195             if (n != 7 || !"abABABc".equals(new String(ba, 0, n, cs.name()))) {
 196                 throw new RuntimeException("encode4(surrogates) failed  -> "
 197                                            + cs.name());
 198             }
 199             */
 200         }
 201 
 202     }
 203 
 204     static class PermissiveSecurityManger extends SecurityManager {
 205         @Override public void checkPermission(java.security.Permission p) {}
 206     }
 207 }
--- EOF ---