1 /*
   2  * Copyright (c) 2018 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 /*
  25  * @test
  26  * @author Eric Wang <yiming.wang@oracle.com>
  27  * @summary tests java.util.Base64
  28  * @library /test/lib /
  29  * @build sun.hotspot.WhiteBox
  30  * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
  31  *
  32  * @run main/othervm/timeout=600 -Xbatch -DcheckOutput=true
  33  *       -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  34  *      compiler.intrinsics.base64.TestBase64
  35  */
  36 
  37 package compiler.intrinsics.base64;
  38 
  39 import java.io.BufferedReader;
  40 import java.io.FileReader;
  41 import java.nio.ByteBuffer;
  42 import java.nio.charset.Charset;
  43 import java.nio.charset.StandardCharsets;
  44 import java.nio.file.Files;
  45 import java.nio.file.Paths;
  46 import java.util.Base64;
  47 import java.util.Base64.Decoder;
  48 import java.util.Base64.Encoder;
  49 import java.util.Objects;
  50 import java.util.Random;
  51 
  52 import compiler.whitebox.CompilerWhiteBoxTest;
  53 import sun.hotspot.code.Compiler;
  54 import jtreg.SkippedException;
  55 
  56 public class TestBase64 {
  57     static boolean checkOutput = Boolean.getBoolean("checkOutput");
  58 
  59     public static void main(String[] args) throws Exception {
  60         if (!Compiler.isIntrinsicAvailable(CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION, "java.util.Base64$Encoder", "encodeBlock", byte[].class, int.class, int.class, byte[].class, int.class, boolean.class)) {
  61             throw new SkippedException("Base64 intrinsic is not available");

  62         }
  63         int iters = (args.length > 0 ? Integer.valueOf(args[0]) : 100000);
  64         System.out.println(iters + " iterations");
  65 
  66         test0(Base64Type.BASIC, Base64.getEncoder(), Base64.getDecoder(),"plain.txt", "baseEncode.txt", iters);
  67         test0(Base64Type.URLSAFE, Base64.getUrlEncoder(), Base64.getUrlDecoder(),"plain.txt", "urlEncode.txt", iters);
  68         test0(Base64Type.MIME, Base64.getMimeEncoder(), Base64.getMimeDecoder(),"plain.txt", "mimeEncode.txt", iters);
  69     }
  70 
  71     public static void test0(Base64Type type, Encoder encoder, Decoder decoder, String srcFile, String encodedFile, int numIterations) throws Exception {
  72 
  73         String[] srcLns = Files.readAllLines(Paths.get(SRCDIR, srcFile), DEF_CHARSET)
  74                                .toArray(new String[0]);
  75         String[] encodedLns = Files.readAllLines(Paths.get(SRCDIR, encodedFile), DEF_CHARSET)
  76                                    .toArray(new String[0]);
  77 
  78         for (int i = 0; i < numIterations; i++) {
  79             int lns = 0;
  80             for (String srcStr : srcLns) {
  81                 String encodedStr = null;
  82                 if (type != Base64Type.MIME) {
  83                     encodedStr = encodedLns[lns++];
  84                 } else {
  85                     while (lns < encodedLns.length) {
  86                         String s = encodedLns[lns++];
  87                         if (s.length() == 0)
  88                             break;
  89                         if (encodedStr != null) {
  90                             encodedStr += DEFAULT_CRLF + s;
  91                         } else {
  92                             encodedStr = s;
  93                         }
  94                     }
  95                     if (encodedStr == null && srcStr.length() == 0) {
  96                         encodedStr = "";
  97                     }
  98                 }
  99 
 100                 byte[] srcArr = srcStr.getBytes(DEF_CHARSET);
 101                 byte[] encodedArr = encodedStr.getBytes(DEF_CHARSET);
 102 
 103                 ByteBuffer srcBuf = ByteBuffer.wrap(srcArr);
 104                 ByteBuffer encodedBuf = ByteBuffer.wrap(encodedArr);
 105                 byte[] resArr = new byte[encodedArr.length];
 106 
 107                 // test int encode(byte[], byte[])
 108                 int len = encoder.encode(srcArr, resArr);
 109                 assertEqual(len, encodedArr.length);
 110                 assertEqual(resArr, encodedArr);
 111 
 112                 // test byte[] encode(byte[])
 113                 resArr = encoder.encode(srcArr);
 114                 assertEqual(resArr, encodedArr);
 115 
 116                 // test ByteBuffer encode(ByteBuffer)
 117                 int limit = srcBuf.limit();
 118                 ByteBuffer resBuf = encoder.encode(srcBuf);
 119                 assertEqual(srcBuf.position(), limit);
 120                 assertEqual(srcBuf.limit(), limit);
 121                 assertEqual(resBuf, encodedBuf);
 122                 srcBuf.rewind(); // reset for next test
 123 
 124                 // test String encodeToString(byte[])
 125                 String resEncodeStr = encoder.encodeToString(srcArr);
 126                 assertEqual(resEncodeStr, encodedStr);
 127 
 128                 // test int decode(byte[], byte[])
 129                 resArr = new byte[srcArr.length];
 130                 len = decoder.decode(encodedArr, resArr);
 131                 assertEqual(len, srcArr.length);
 132                 assertEqual(resArr, srcArr);
 133 
 134                 // test byte[] decode(byte[])
 135                 resArr = decoder.decode(encodedArr);
 136                 assertEqual(resArr, srcArr);
 137 
 138                 // test ByteBuffer decode(ByteBuffer)
 139                 limit = encodedBuf.limit();
 140                 resBuf = decoder.decode(encodedBuf);
 141                 assertEqual(encodedBuf.position(), limit);
 142                 assertEqual(encodedBuf.limit(), limit);
 143                 assertEqual(resBuf, srcBuf);
 144                 encodedBuf.rewind(); // reset for next test
 145 
 146                 // test byte[] decode(String)
 147                 resArr = decoder.decode(encodedStr);
 148                 assertEqual(resArr, srcArr);
 149 
 150             }
 151         }
 152     }
 153 
 154     // helper
 155     enum Base64Type {
 156         BASIC, URLSAFE, MIME
 157     }
 158 
 159     private static final String SRCDIR = System.getProperty("test.src", "compiler/intrinsics/base64/");
 160     private static final Charset DEF_CHARSET = StandardCharsets.US_ASCII;
 161     private static final String DEF_EXCEPTION_MSG =
 162         "Assertion failed! The result is not same as expected\n";
 163     private static final String DEFAULT_CRLF = "\r\n";
 164 
 165     private static void assertEqual(Object result, Object expect) {
 166         if (checkOutput) {
 167             if (!Objects.deepEquals(result, expect)) {
 168                 String resultStr = result.toString();
 169                 String expectStr = expect.toString();
 170                 if (result instanceof byte[]) {
 171                     resultStr = new String((byte[]) result, DEF_CHARSET);
 172                 }
 173                 if (expect instanceof byte[]) {
 174                     expectStr = new String((byte[]) expect, DEF_CHARSET);
 175                 }
 176                 throw new RuntimeException(DEF_EXCEPTION_MSG +
 177                     " result: " + resultStr + " expected: " + expectStr);
 178             }
 179         }
 180     }
 181 }
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