1 /*
2 * Copyright (c) 2012, 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 /*
25 * @test 4235519
26 * @author Eric Wang <yiming.wang@oracle.com>
27 * @summary tests java.util.Base64
28 */
29
30 import java.io.BufferedReader;
31 import java.io.FileReader;
32 import java.nio.ByteBuffer;
33 import java.nio.charset.Charset;
34 import java.nio.charset.StandardCharsets;
35 import java.nio.file.Files;
36 import java.nio.file.Paths;
37 import java.util.Base64;
38 import java.util.Base64.Decoder;
39 import java.util.Base64.Encoder;
40 import java.util.Objects;
41 import java.util.Random;
42
43 public class TestBase64Golden {
44
45 public static void main(String[] args) throws Exception {
46 test0(Base64Type.BASIC, Base64.getEncoder(), Base64.getDecoder(),
47 "plain.txt", "baseEncode.txt");
48
49 test0(Base64Type.URLSAFE, Base64.getUrlEncoder(), Base64.getUrlDecoder(),
50 "plain.txt", "urlEncode.txt");
51
52 test0(Base64Type.MIME, Base64.getMimeEncoder(), Base64.getMimeDecoder(),
53 "plain.txt", "mimeEncode.txt");
54 test1();
55 }
56
57 public static void test0(Base64Type type, Encoder encoder, Decoder decoder,
58 String srcFile, String encodedFile) throws Exception {
59
60 String[] srcLns = Files.readAllLines(Paths.get(SRCDIR, srcFile), DEF_CHARSET)
61 .toArray(new String[0]);
62 String[] encodedLns = Files.readAllLines(Paths.get(SRCDIR, encodedFile),
63 DEF_CHARSET)
64 .toArray(new String[0]);
65 int lns = 0;
66 for (String srcStr : srcLns) {
67 String encodedStr = null;
68 if (type != Base64Type.MIME) {
69 encodedStr = encodedLns[lns++];
70 } else {
71 while (lns < encodedLns.length) {
72 String s = encodedLns[lns++];
73 if (s.length() == 0)
74 break;
75 if (encodedStr != null) {
76 encodedStr += DEFAULT_CRLF + s;
77 } else {
78 encodedStr = s;
79 }
80 }
81 if (encodedStr == null && srcStr.length() == 0) {
82 encodedStr = "";
83 }
84 }
85 System.out.printf("%n src[%d]: %s%n", srcStr.length(), srcStr);
86 System.out.printf("encoded[%d]: %s%n", encodedStr.length(), encodedStr);
87
88 byte[] srcArr = srcStr.getBytes(DEF_CHARSET);
89 byte[] encodedArr = encodedStr.getBytes(DEF_CHARSET);
90
91 ByteBuffer srcBuf = ByteBuffer.wrap(srcArr);
92 ByteBuffer encodedBuf = ByteBuffer.wrap(encodedArr);
93 byte[] resArr = new byte[encodedArr.length];
94
95 // test int encode(byte[], byte[])
96 int len = encoder.encode(srcArr, resArr);
97 assertEqual(len, encodedArr.length);
98 assertEqual(resArr, encodedArr);
99
100 // test byte[] encode(byte[])
101 resArr = encoder.encode(srcArr);
102 assertEqual(resArr, encodedArr);
103
104 // test ByteBuffer encode(ByteBuffer)
105 int limit = srcBuf.limit();
106 ByteBuffer resBuf = encoder.encode(srcBuf);
107 assertEqual(srcBuf.position(), limit);
108 assertEqual(srcBuf.limit(), limit);
109 assertEqual(resBuf, encodedBuf);
110 srcBuf.rewind(); // reset for next test
111
112 // test String encodeToString(byte[])
113 String resEncodeStr = encoder.encodeToString(srcArr);
114 assertEqual(resEncodeStr, encodedStr);
115
116 // test int decode(byte[], byte[])
117 resArr = new byte[srcArr.length];
118 len = decoder.decode(encodedArr, resArr);
119 assertEqual(len, srcArr.length);
120 assertEqual(resArr, srcArr);
121
122 // test byte[] decode(byte[])
123 resArr = decoder.decode(encodedArr);
124 assertEqual(resArr, srcArr);
125
126 // test ByteBuffer decode(ByteBuffer)
127 limit = encodedBuf.limit();
128 resBuf = decoder.decode(encodedBuf);
129 assertEqual(encodedBuf.position(), limit);
130 assertEqual(encodedBuf.limit(), limit);
131 assertEqual(resBuf, srcBuf);
132 encodedBuf.rewind(); // reset for next test
133
134 // test byte[] decode(String)
135 resArr = decoder.decode(encodedStr);
136 assertEqual(resArr, srcArr);
137
138 }
139 }
140
141 private static void test1() throws Exception {
142 byte[] src = new byte[] {
143 46, -97, -35, -44, 127, -60, -39, -4, -112, 34, -57, 47, -14, 67,
144 40, 18, 90, -59, 68, 112, 23, 121, -91, 94, 35, 49, 104, 17, 30,
145 -80, -104, -3, -53, 27, 38, -72, -47, 113, -52, 18, 5, -126 };
146 Encoder encoder = Base64.getMimeEncoder(49, new byte[] { 0x7e });
147 byte[] encoded = encoder.encode(src);
148 Decoder decoder = Base64.getMimeDecoder();
149 byte[] decoded = decoder.decode(encoded);
150 if (!Objects.deepEquals(src, decoded)) {
151 throw new RuntimeException();
152 }
153 }
154
155 // helper
156 enum Base64Type {
157 BASIC, URLSAFE, MIME
158 }
159
160 private static final String SRCDIR = System.getProperty("test.src", ".");
161 private static final Charset DEF_CHARSET = StandardCharsets.US_ASCII;
162 private static final String DEF_EXCEPTION_MSG =
163 "Assertion failed! The result is not same as expected";
164 private static final String DEFAULT_CRLF = "\r\n";
165
166 private static void assertEqual(Object result, Object expect) {
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 }