1 /*
2 * Copyright (c) 2012, 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 8004212 8005394 8007298 8006315 8006530
26 * @summary tests java.util.Base64
27 */
28
29 import java.io.ByteArrayInputStream;
30 import java.io.ByteArrayOutputStream;
31 import java.io.InputStream;
32 import java.io.IOException;
33 import java.io.OutputStream;
34 import java.nio.ByteBuffer;
35 import java.util.Arrays;
36 import java.util.Base64;
37 import java.util.Random;
38
39 public class TestBase64 {
40
41 public static void main(String args[]) throws Throwable {
42 int numRuns = 10;
43 int numBytes = 200;
44 if (args.length > 1) {
45 numRuns = Integer.parseInt(args[0]);
46 numBytes = Integer.parseInt(args[1]);
47 }
48
49 test(Base64.getEncoder(), Base64.getDecoder(),
50 numRuns, numBytes);
51 test(Base64.getUrlEncoder(), Base64.getUrlDecoder(),
52 numRuns, numBytes);
53 test(Base64.getMimeEncoder(), Base64.getMimeDecoder(),
54 numRuns, numBytes);
55
56 Random rnd = new java.util.Random();
57 byte[] nl_1 = new byte[] {'\n'};
58 byte[] nl_2 = new byte[] {'\n', '\r'};
59 byte[] nl_3 = new byte[] {'\n', '\r', '\n'};
60 for (int i = 0; i < 10; i++) {
61 int len = rnd.nextInt(200) + 4;
62 test(Base64.getEncoder(len, nl_1),
63 Base64.getMimeDecoder(),
64 numRuns, numBytes);
65 test(Base64.getEncoder(len, nl_2),
66 Base64.getMimeDecoder(),
67 numRuns, numBytes);
68 test(Base64.getEncoder(len, nl_3),
69 Base64.getMimeDecoder(),
70 numRuns, numBytes);
71 }
72
73 testNull(Base64.getEncoder());
74 testNull(Base64.getUrlEncoder());
75 testNull(Base64.getMimeEncoder());
76 testNull(Base64.getEncoder(10, new byte[]{'\n'}));
77 testNull(Base64.getDecoder());
78 testNull(Base64.getUrlDecoder());
79 testNull(Base64.getMimeDecoder());
80 checkNull(new Runnable() { public void run() { Base64.getEncoder(10, null); }});
81
82 testIOE(Base64.getEncoder());
83 testIOE(Base64.getUrlEncoder());
84 testIOE(Base64.getMimeEncoder());
85 testIOE(Base64.getEncoder(10, new byte[]{'\n'}));
86
87 byte[] src = new byte[1024];
88 new Random().nextBytes(src);
89 final byte[] decoded = Base64.getEncoder().encode(src);
90 testIOE(Base64.getDecoder(), decoded);
91 testIOE(Base64.getMimeDecoder(), decoded);
92 testIOE(Base64.getUrlDecoder(), Base64.getUrlEncoder().encode(src));
93
94 // illegal line separator
95 checkIAE(new Runnable() { public void run() { Base64.getEncoder(10, new byte[]{'\r', 'N'}); }});
96
97 // illegal base64 character
98 decoded[2] = (byte)0xe0;
99 checkIAE(new Runnable() {
100 public void run() { Base64.getDecoder().decode(decoded); }});
101 checkIAE(new Runnable() {
102 public void run() { Base64.getDecoder().decode(decoded, new byte[1024]); }});
103 checkIAE(new Runnable() { public void run() {
104 Base64.getDecoder().decode(ByteBuffer.wrap(decoded)); }});
105 checkIAE(new Runnable() { public void run() {
106 Base64.getDecoder().decode(ByteBuffer.wrap(decoded), ByteBuffer.allocate(1024)); }});
107 checkIAE(new Runnable() { public void run() {
108 Base64.getDecoder().decode(ByteBuffer.wrap(decoded), ByteBuffer.allocateDirect(1024)); }});
109
110 // test return value from decode(ByteBuffer, ByteBuffer)
111 testDecBufRet();
112
113 // test single-non-base64 character for mime decoding
114 testSingleNonBase64MimeDec();
115
116 // test decoding of unpadded data
117 testDecodeUnpadded();
118
119 // test mime decoding with ignored character after padding
120 testDecodeIgnoredAfterPadding();
121 }
122
123 private static sun.misc.BASE64Encoder sunmisc = new sun.misc.BASE64Encoder();
124
125 private static void test(Base64.Encoder enc, Base64.Decoder dec,
126 int numRuns, int numBytes) throws Throwable {
127 Random rnd = new java.util.Random();
128
129 enc.encode(new byte[0]);
130 dec.decode(new byte[0]);
131
132 for (int i=0; i<numRuns; i++) {
133 for (int j=1; j<numBytes; j++) {
134 byte[] orig = new byte[j];
135 rnd.nextBytes(orig);
136
137 // --------testing encode/decode(byte[])--------
138 byte[] encoded = enc.encode(orig);
139 byte[] decoded = dec.decode(encoded);
140
141 checkEqual(orig, decoded,
142 "Base64 array encoding/decoding failed!");
143
144 // compare to sun.misc.BASE64Encoder
145 byte[] encoded2 = sunmisc.encode(orig).getBytes("ASCII");
146 checkEqual(normalize(encoded),
147 normalize(encoded2),
148 "Base64 enc.encode() does not match sun.misc.base64!");
149
150 // remove padding '=' to test non-padding decoding case
151 if (encoded[encoded.length -2] == '=')
152 encoded2 = Arrays.copyOf(encoded, encoded.length -2);
153 else if (encoded[encoded.length -1] == '=')
154 encoded2 = Arrays.copyOf(encoded, encoded.length -1);
155 else
156 encoded2 = null;
157
158 // --------testing encodetoString(byte[])/decode(String)--------
159 String str = enc.encodeToString(orig);
160 if (!Arrays.equals(str.getBytes("ASCII"), encoded)) {
161 throw new RuntimeException(
162 "Base64 encodingToString() failed!");
163 }
164 byte[] buf = dec.decode(new String(encoded, "ASCII"));
165 checkEqual(buf, orig, "Base64 decoding(String) failed!");
166
167 if (encoded2 != null) {
168 buf = dec.decode(new String(encoded2, "ASCII"));
169 checkEqual(buf, orig, "Base64 decoding(String) failed!");
170 }
171
172 //-------- testing encode/decode(Buffer)--------
173 testEncode(enc, ByteBuffer.wrap(orig), encoded);
174 ByteBuffer bin = ByteBuffer.allocateDirect(orig.length);
175 bin.put(orig).flip();
176 testEncode(enc, bin, encoded);
177
178 testDecode(dec, ByteBuffer.wrap(encoded), orig);
179 bin = ByteBuffer.allocateDirect(encoded.length);
180 bin.put(encoded).flip();
181 testDecode(dec, bin, orig);
182
183 if (encoded2 != null)
184 testDecode(dec, ByteBuffer.wrap(encoded2), orig);
185
186 // -------- testing encode(Buffer, Buffer)--------
187 testEncode(enc, encoded,
188 ByteBuffer.wrap(orig),
189 ByteBuffer.allocate(encoded.length + 10));
190
191 testEncode(enc, encoded,
192 ByteBuffer.wrap(orig),
193 ByteBuffer.allocateDirect(encoded.length + 10));
194
195 // --------testing decode(Buffer, Buffer);--------
196 testDecode(dec, orig,
197 ByteBuffer.wrap(encoded),
198 ByteBuffer.allocate(orig.length + 10));
199
200 testDecode(dec, orig,
201 ByteBuffer.wrap(encoded),
202 ByteBuffer.allocateDirect(orig.length + 10));
203
204 // --------testing decode.wrap(input stream)--------
205 // 1) random buf length
206 ByteArrayInputStream bais = new ByteArrayInputStream(encoded);
207 InputStream is = dec.wrap(bais);
208 buf = new byte[orig.length + 10];
209 int len = orig.length;
210 int off = 0;
211 while (true) {
212 int n = rnd.nextInt(len);
213 if (n == 0)
214 n = 1;
215 n = is.read(buf, off, n);
216 if (n == -1) {
217 checkEqual(off, orig.length,
218 "Base64 stream decoding failed");
219 break;
220 }
221 off += n;
222 len -= n;
223 if (len == 0)
224 break;
225 }
226 buf = Arrays.copyOf(buf, off);
227 checkEqual(buf, orig, "Base64 stream decoding failed!");
228
229 // 2) read one byte each
230 bais.reset();
231 is = dec.wrap(bais);
232 buf = new byte[orig.length + 10];
233 off = 0;
234 int b;
235 while ((b = is.read()) != -1) {
236 buf[off++] = (byte)b;
237 }
238 buf = Arrays.copyOf(buf, off);
239 checkEqual(buf, orig, "Base64 stream decoding failed!");
240
241 // --------testing encode.wrap(output stream)--------
242 ByteArrayOutputStream baos = new ByteArrayOutputStream((orig.length + 2) / 3 * 4 + 10);
243 OutputStream os = enc.wrap(baos);
244 off = 0;
245 len = orig.length;
246 for (int k = 0; k < 5; k++) {
247 if (len == 0)
248 break;
249 int n = rnd.nextInt(len);
250 if (n == 0)
251 n = 1;
252 os.write(orig, off, n);
253 off += n;
254 len -= n;
255 }
256 if (len != 0)
257 os.write(orig, off, len);
258 os.close();
259 buf = baos.toByteArray();
260 checkEqual(buf, encoded, "Base64 stream encoding failed!");
261
262 // 2) write one byte each
263 baos.reset();
264 os = enc.wrap(baos);
265 off = 0;
266 while (off < orig.length) {
267 os.write(orig[off++]);
268 }
269 os.close();
270 buf = baos.toByteArray();
271 checkEqual(buf, encoded, "Base64 stream encoding failed!");
272
273 // --------testing encode(in, out); -> bigger buf--------
274 buf = new byte[encoded.length + rnd.nextInt(100)];
275 int ret = enc.encode(orig, buf);
276 checkEqual(ret, encoded.length,
277 "Base64 enc.encode(src, null) returns wrong size!");
278 buf = Arrays.copyOf(buf, ret);
279 checkEqual(buf, encoded,
280 "Base64 enc.encode(src, dst) failed!");
281
282 // --------testing decode(in, out); -> bigger buf--------
283 buf = new byte[orig.length + rnd.nextInt(100)];
284 ret = dec.decode(encoded, buf);
285 checkEqual(ret, orig.length,
286 "Base64 enc.encode(src, null) returns wrong size!");
287 buf = Arrays.copyOf(buf, ret);
288 checkEqual(buf, orig,
289 "Base64 dec.decode(src, dst) failed!");
290
291 }
292 }
293 }
294
295 private static final byte[] ba_null = null;
296 private static final String str_null = null;
297 private static final ByteBuffer bb_null = null;
298
299 private static void testNull(final Base64.Encoder enc) {
300 checkNull(new Runnable() { public void run() { enc.encode(ba_null); }});
301 checkNull(new Runnable() { public void run() { enc.encodeToString(ba_null); }});
302 checkNull(new Runnable() { public void run() { enc.encode(ba_null, new byte[10]); }});
303 checkNull(new Runnable() { public void run() { enc.encode(new byte[10], ba_null); }});
304 checkNull(new Runnable() { public void run() { enc.encode(bb_null); }});
305 checkNull(new Runnable() { public void run() { enc.encode(bb_null, ByteBuffer.allocate(10), 0); }});
306 checkNull(new Runnable() { public void run() { enc.encode(ByteBuffer.allocate(10), bb_null, 0); }});
307 checkNull(new Runnable() { public void run() { enc.wrap(null); }});
308 }
309
310 private static void testNull(final Base64.Decoder dec) {
311 checkNull(new Runnable() { public void run() { dec.decode(ba_null); }});
312 checkNull(new Runnable() { public void run() { dec.decode(str_null); }});
313 checkNull(new Runnable() { public void run() { dec.decode(ba_null, new byte[10]); }});
314 checkNull(new Runnable() { public void run() { dec.decode(new byte[10], ba_null); }});
315 checkNull(new Runnable() { public void run() { dec.decode(bb_null); }});
316 checkNull(new Runnable() { public void run() { dec.decode(bb_null, ByteBuffer.allocate(10)); }});
317 checkNull(new Runnable() { public void run() { dec.decode(ByteBuffer.allocate(10), bb_null); }});
318 checkNull(new Runnable() { public void run() { dec.wrap(null); }});
319 }
320
321 private static interface Testable {
322 public void test() throws Throwable;
323 }
324
325 private static void testIOE(final Base64.Encoder enc) throws Throwable {
326 ByteArrayOutputStream baos = new ByteArrayOutputStream(8192);
327 final OutputStream os = enc.wrap(baos);
328 os.write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9});
329 os.close();
330 checkIOE(new Testable() { public void test() throws Throwable { os.write(10); }});
331 checkIOE(new Testable() { public void test() throws Throwable { os.write(new byte[] {10}); }});
332 checkIOE(new Testable() { public void test() throws Throwable { os.write(new byte[] {10}, 1, 4); }});
333 }
334
335 private static void testIOE(final Base64.Decoder dec, byte[] decoded) throws Throwable {
336 ByteArrayInputStream bais = new ByteArrayInputStream(decoded);
337 final InputStream is = dec.wrap(bais);
338 is.read(new byte[10]);
339 is.close();
340 checkIOE(new Testable() { public void test() throws Throwable { is.read(); }});
341 checkIOE(new Testable() { public void test() throws Throwable { is.read(new byte[] {10}); }});
342 checkIOE(new Testable() { public void test() throws Throwable { is.read(new byte[] {10}, 1, 4); }});
343 checkIOE(new Testable() { public void test() throws Throwable { is.available(); }});
344 checkIOE(new Testable() { public void test() throws Throwable { is.skip(20); }});
345 }
346
347 private static final void checkNull(Runnable r) {
348 try {
349 r.run();
350 throw new RuntimeException("NPE is not thrown as expected");
351 } catch (NullPointerException npe) {}
352 }
353
354 private static final void checkIOE(Testable t) throws Throwable {
355 try {
356 t.test();
357 throw new RuntimeException("IOE is not thrown as expected");
358 } catch (IOException ioe) {}
359 }
360
361 private static final void checkIAE(Runnable r) throws Throwable {
362 try {
363 r.run();
364 throw new RuntimeException("IAE is not thrown as expected");
365 } catch (IllegalArgumentException iae) {}
366 }
367
368 private static void testDecodeIgnoredAfterPadding() throws Throwable {
369 for (byte nonBase64 : new byte[] {'#', '(', '!', '\\', '-', '_', '\n', '\r'}) {
370 byte[][] src = new byte[][] {
371 "A".getBytes("ascii"),
372 "AB".getBytes("ascii"),
373 "ABC".getBytes("ascii"),
374 "ABCD".getBytes("ascii"),
375 "ABCDE".getBytes("ascii")
376 };
377 Base64.Encoder encM = Base64.getMimeEncoder();
378 Base64.Decoder decM = Base64.getMimeDecoder();
379 Base64.Encoder enc = Base64.getEncoder();
380 Base64.Decoder dec = Base64.getDecoder();
381 for (int i = 0; i < src.length; i++) {
382 // decode(byte[])
383 byte[] encoded = encM.encode(src[i]);
384 encoded = Arrays.copyOf(encoded, encoded.length + 1);
385 encoded[encoded.length - 1] = nonBase64;
386 checkEqual(decM.decode(encoded), src[i], "Non-base64 char is not ignored");
387 try {
388 dec.decode(encoded);
389 throw new RuntimeException("No IAE for non-base64 char");
390 } catch (IllegalArgumentException iae) {}
391
392 // decode(ByteBuffer[], ByteBuffer[])
393 ByteBuffer encodedBB = ByteBuffer.wrap(encoded);
394 ByteBuffer decodedBB = ByteBuffer.allocate(100);
395 int ret = decM.decode(encodedBB, decodedBB);
396 byte[] buf = new byte[ret];
397 decodedBB.flip();
398 decodedBB.get(buf);
399 checkEqual(buf, src[i], "Non-base64 char is not ignored");
400 try {
401 encodedBB.rewind();
402 decodedBB.clear();
403 dec.decode(encodedBB, decodedBB);
404 throw new RuntimeException("No IAE for non-base64 char");
405 } catch (IllegalArgumentException iae) {}
406 // direct
407 encodedBB.rewind();
408 decodedBB = ByteBuffer.allocateDirect(100);
409 ret = decM.decode(encodedBB, decodedBB);
410 buf = new byte[ret];
411 decodedBB.flip();
412 decodedBB.get(buf);
413 checkEqual(buf, src[i], "Non-base64 char is not ignored");
414 try {
415 encodedBB.rewind();
416 decodedBB.clear();
417 dec.decode(encodedBB, decodedBB);
418 throw new RuntimeException("No IAE for non-base64 char");
419 } catch (IllegalArgumentException iae) {}
420 }
421 }
422 }
423
424 private static void testDecodeUnpadded() throws Throwable {
425 byte[] srcA = new byte[] { 'Q', 'Q' };
426 byte[] srcAA = new byte[] { 'Q', 'Q', 'E'};
427 Base64.Decoder dec = Base64.getDecoder();
428 byte[] ret = dec.decode(srcA);
429 if (ret[0] != 'A')
430 throw new RuntimeException("Decoding unpadding input A failed");
431 ret = dec.decode(srcAA);
432 if (ret[0] != 'A' && ret[1] != 'A')
433 throw new RuntimeException("Decoding unpadding input AA failed");
434 ret = new byte[10];
435 if (dec.wrap(new ByteArrayInputStream(srcA)).read(ret) != 1 &&
436 ret[0] != 'A')
437 throw new RuntimeException("Decoding unpadding input A from stream failed");
438 if (dec.wrap(new ByteArrayInputStream(srcA)).read(ret) != 2 &&
439 ret[0] != 'A' && ret[1] != 'A')
440 throw new RuntimeException("Decoding unpadding input AA from stream failed");
441 }
442
443 // single-non-base64-char should be ignored for mime decoding, but
444 // iae for basic decoding
445 private static void testSingleNonBase64MimeDec() throws Throwable {
446 for (String nonBase64 : new String[] {"#", "(", "!", "\\", "-", "_"}) {
447 if (Base64.getMimeDecoder().decode(nonBase64).length != 0) {
448 throw new RuntimeException("non-base64 char is not ignored");
449 }
450 try {
451 Base64.getDecoder().decode(nonBase64);
452 throw new RuntimeException("No IAE for single non-base64 char");
453 } catch (IllegalArgumentException iae) {}
454 }
455 }
456
457 private static void testDecBufRet() throws Throwable {
458 Random rnd = new java.util.Random();
459 Base64.Encoder encoder = Base64.getEncoder();
460 Base64.Decoder decoder = Base64.getDecoder();
461 // src pos, len expected
462 int[][] tests = { { 6, 3, 3, 3}, // xxx xxx -> yyyy yyyy
463 { 6, 3, 4, 3},
464 { 6, 3, 5, 3},
465 { 6, 3, 6, 6},
466 { 6, 11, 4, 3},
467 { 6, 11, 4, 3},
468 { 6, 11, 5, 3},
469 { 6, 11, 6, 6},
470 { 7, 3, 6, 6}, // xxx xxx x -> yyyy yyyy yy==
471 { 7, 3, 7, 7},
472 { 7, 11, 6, 6},
473 { 7, 11, 7, 7},
474 { 8, 3, 6, 6}, // xxx xxx xx -> yyyy yyyy yyy=
475 { 8, 3, 7, 6},
476 { 8, 3, 8, 8},
477 { 8, 13, 6, 6},
478 { 8, 13, 7, 6},
479 { 8, 13, 8, 8},
480
481 };
482 ByteBuffer dstBuf = ByteBuffer.allocate(100);
483 for (boolean direct : new boolean[] { false, true}) {
484 for (int[] test : tests) {
485 byte[] src = new byte[test[0]];
486 rnd.nextBytes(src);
487 ByteBuffer srcBuf = direct ? ByteBuffer.allocate(100)
488 : ByteBuffer.allocateDirect(100);
489 srcBuf.put(encoder.encode(src)).flip();
490 dstBuf.clear().position(test[1]).limit(test[1]+ test[2]);
491 int ret = decoder.decode(srcBuf, dstBuf);
492 if (ret != test[3]) {
493 System.out.printf(" [%6s] src=%d, pos=%d, len=%d, expected=%d, ret=%d%n",
494 direct?"direct":"",
495 test[0], test[1], test[2], test[3], ret);
496 throw new RuntimeException("ret != expected");
497 }
498 }
499 }
500 }
501
502 private static final void testEncode(Base64.Encoder enc, ByteBuffer bin, byte[] expected)
503 throws Throwable {
504
505 ByteBuffer bout = enc.encode(bin);
506 byte[] buf = new byte[bout.remaining()];
507 bout.get(buf);
508 if (bin.hasRemaining()) {
509 throw new RuntimeException(
510 "Base64 enc.encode(ByteBuffer) failed!");
511 }
512 checkEqual(buf, expected, "Base64 enc.encode(bf, bf) failed!");
513 }
514
515 private static final void testDecode(Base64.Decoder dec, ByteBuffer bin, byte[] expected)
516 throws Throwable {
517
518 ByteBuffer bout = dec.decode(bin);
519 byte[] buf = new byte[bout.remaining()];
520 bout.get(buf);
521 checkEqual(buf, expected, "Base64 dec.decode(bf) failed!");
522 }
523
524 private static final void testEncode(Base64.Encoder enc, byte[] expected,
525 ByteBuffer ibb, ByteBuffer obb)
526 throws Throwable {
527 Random rnd = new Random();
528 int bytesOut = enc.encode(ibb, obb, 0);
529 if (ibb.hasRemaining()) {
530 throw new RuntimeException(
531 "Base64 enc.encode(bf, bf) failed with wrong return!");
532 }
533 obb.flip();
534 byte[] buf = new byte[obb.remaining()];
535 obb.get(buf);
536 checkEqual(buf, expected, "Base64 enc.encode(bf, bf) failed!");
537 ibb.rewind();
538 obb.position(0);
539 obb.limit(0);
540 bytesOut = 0;
541
542 do { // increase the "limit" incrementally & randomly
543 int n = rnd.nextInt(expected.length - obb.position());
544 if (n == 0)
545 n = 1;
546 obb.limit(obb.limit() + n);
547 //obb.limit(Math.min(obb.limit() + n, expected.length));
548 bytesOut = enc.encode(ibb, obb, bytesOut);
549 } while (ibb.hasRemaining());
550 obb.flip();
551 buf = new byte[obb.remaining()];
552 obb.get(buf);
553 checkEqual(buf, expected, "Base64 enc.encode(bf, bf) failed!");
554 }
555
556 private static final void testDecode(Base64.Decoder dec, byte[] expected,
557 ByteBuffer ibb, ByteBuffer obb)
558 throws Throwable {
559 Random rnd = new Random();
560
561 dec.decode(ibb, obb);
562 if (ibb.hasRemaining()) {
563 throw new RuntimeException(
564 "Base64 dec.decode(bf, bf) failed with un-decoded ibb!");
565 }
566 obb.flip();
567 byte[] buf = new byte[obb.remaining()];
568 obb.get(buf);
569 checkEqual(buf, expected, "Base64 dec.decode(bf, bf) failed!");
570
571 ibb.rewind();
572 obb.position(0);
573 obb.limit(0);
574 do { // increase the "limit" incrementally & randomly
575 int n = rnd.nextInt(expected.length - obb.position());
576 if (n == 0)
577 n = 1;
578 obb.limit(obb.limit() + n);
579 dec.decode(ibb, obb);
580 } while (ibb.hasRemaining());
581
582
583 obb.flip();
584 buf = new byte[obb.remaining()];
585 obb.get(buf);
586 checkEqual(buf, expected, "Base64 dec.decode(bf, bf) failed!");
587 }
588
589 private static final void checkEqual(int v1, int v2, String msg)
590 throws Throwable {
591 if (v1 != v2) {
592 System.out.printf(" v1=%d%n", v1);
593 System.out.printf(" v2=%d%n", v2);
594 throw new RuntimeException(msg);
595 }
596 }
597
598 private static final void checkEqual(byte[] r1, byte[] r2, String msg)
599 throws Throwable {
600 if (!Arrays.equals(r1, r2)) {
601 System.out.printf(" r1[%d]=[%s]%n", r1.length, new String(r1));
602 System.out.printf(" r2[%d]=[%s]%n", r2.length, new String(r2));
603 throw new RuntimeException(msg);
604 }
605 }
606
607 // remove line feeds,
608 private static final byte[] normalize(byte[] src) {
609 int n = 0;
610 boolean hasUrl = false;
611 for (int i = 0; i < src.length; i++) {
612 if (src[i] == '\r' || src[i] == '\n')
613 n++;
614 if (src[i] == '-' || src[i] == '_')
615 hasUrl = true;
616 }
617 if (n == 0 && hasUrl == false)
618 return src;
619 byte[] ret = new byte[src.length - n];
620 int j = 0;
621 for (int i = 0; i < src.length; i++) {
622 if (src[i] == '-')
623 ret[j++] = '+';
624 else if (src[i] == '_')
625 ret[j++] = '/';
626 else if (src[i] != '\r' && src[i] != '\n')
627 ret[j++] = src[i];
628 }
629 return ret;
630 }
631 }