1 /*
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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
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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
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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$WhiteBoxPermission
31  *
32  * @run main/othervm/timeout=600 -Xbatch -DcheckOutput=true
33  *       -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
34  *      compiler.intrinsics.base64.TestBase64
35  */
36 
37 package compiler.intrinsics.base64;
38 
39 import java.io.BufferedReader;
40 import java.io.FileReader;
41 import java.nio.ByteBuffer;
42 import java.nio.charset.Charset;
43 import java.nio.charset.StandardCharsets;
44 import java.nio.file.Files;
45 import java.nio.file.Paths;
46 import java.util.Base64;
47 import java.util.Base64.Decoder;
48 import java.util.Base64.Encoder;
49 import java.util.Objects;
50 import java.util.Random;
51 
52 import compiler.whitebox.CompilerWhiteBoxTest;
53 import sun.hotspot.code.Compiler;
54 import jtreg.SkippedException;
55 
56 public class TestBase64 {
57     static boolean checkOutput = Boolean.getBoolean("checkOutput");
58 
main(String[] args)59     public static void main(String[] args) throws Exception {
60         if (!Compiler.isIntrinsicAvailable(CompilerWhiteBoxTest.COMP_LEVEL_FULL_OPTIMIZATION, "java.util.Base64$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 
test0(Base64Type type, Encoder encoder, Decoder decoder, String srcFile, String encodedFile, int numIterations)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 
assertEqual(Object result, Object expect)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 }
182