aboutsummaryrefslogtreecommitdiff
path: root/src/test/streams_tests.cpp
blob: e666e11758209128e615ed2d281c854b40a05457 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
// Copyright (c) 2012-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <streams.h>
#include <test/util/random.h>
#include <test/util/setup_common.h>
#include <util/fs.h>
#include <util/strencodings.h>

#include <boost/test/unit_test.hpp>

using namespace std::string_literals;

BOOST_FIXTURE_TEST_SUITE(streams_tests, BasicTestingSetup)

BOOST_AUTO_TEST_CASE(xor_file)
{
    fs::path xor_path{m_args.GetDataDirBase() / "test_xor.bin"};
    auto raw_file{[&](const auto& mode) { return fsbridge::fopen(xor_path, mode); }};
    const std::vector<uint8_t> test1{1, 2, 3};
    const std::vector<uint8_t> test2{4, 5};
    const std::vector<std::byte> xor_pat{std::byte{0xff}, std::byte{0x00}};
    {
        // Check errors for missing file
        AutoFile xor_file{raw_file("rb"), xor_pat};
        BOOST_CHECK_EXCEPTION(xor_file << std::byte{}, std::ios_base::failure, HasReason{"AutoFile::write: file handle is nullpt"});
        BOOST_CHECK_EXCEPTION(xor_file >> std::byte{}, std::ios_base::failure, HasReason{"AutoFile::read: file handle is nullpt"});
        BOOST_CHECK_EXCEPTION(xor_file.ignore(1), std::ios_base::failure, HasReason{"AutoFile::ignore: file handle is nullpt"});
    }
    {
#ifdef __MINGW64__
        // Our usage of mingw-w64 and the msvcrt runtime does not support
        // the x modifier for the _wfopen().
        const char* mode = "wb";
#else
        const char* mode = "wbx";
#endif
        AutoFile xor_file{raw_file(mode), xor_pat};
        xor_file << test1 << test2;
    }
    {
        // Read raw from disk
        AutoFile non_xor_file{raw_file("rb")};
        std::vector<std::byte> raw(7);
        non_xor_file >> Span{raw};
        BOOST_CHECK_EQUAL(HexStr(raw), "fc01fd03fd04fa");
        // Check that no padding exists
        BOOST_CHECK_EXCEPTION(non_xor_file.ignore(1), std::ios_base::failure, HasReason{"AutoFile::ignore: end of file"});
    }
    {
        AutoFile xor_file{raw_file("rb"), xor_pat};
        std::vector<std::byte> read1, read2;
        xor_file >> read1 >> read2;
        BOOST_CHECK_EQUAL(HexStr(read1), HexStr(test1));
        BOOST_CHECK_EQUAL(HexStr(read2), HexStr(test2));
        // Check that eof was reached
        BOOST_CHECK_EXCEPTION(xor_file >> std::byte{}, std::ios_base::failure, HasReason{"AutoFile::read: end of file"});
    }
    {
        AutoFile xor_file{raw_file("rb"), xor_pat};
        std::vector<std::byte> read2;
        // Check that ignore works
        xor_file.ignore(4);
        xor_file >> read2;
        BOOST_CHECK_EQUAL(HexStr(read2), HexStr(test2));
        // Check that ignore and read fail now
        BOOST_CHECK_EXCEPTION(xor_file.ignore(1), std::ios_base::failure, HasReason{"AutoFile::ignore: end of file"});
        BOOST_CHECK_EXCEPTION(xor_file >> std::byte{}, std::ios_base::failure, HasReason{"AutoFile::read: end of file"});
    }
}

BOOST_AUTO_TEST_CASE(streams_vector_writer)
{
    unsigned char a(1);
    unsigned char b(2);
    unsigned char bytes[] = { 3, 4, 5, 6 };
    std::vector<unsigned char> vch;

    // Each test runs twice. Serializing a second time at the same starting
    // point should yield the same results, even if the first test grew the
    // vector.

    VectorWriter{vch, 0, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{1, 2}}));
    VectorWriter{vch, 0, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{1, 2}}));
    vch.clear();

    VectorWriter{vch, 2, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2}}));
    VectorWriter{vch, 2, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2}}));
    vch.clear();

    vch.resize(5, 0);
    VectorWriter{vch, 2, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2, 0}}));
    VectorWriter{vch, 2, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 1, 2, 0}}));
    vch.clear();

    vch.resize(4, 0);
    VectorWriter{vch, 3, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 1, 2}}));
    VectorWriter{vch, 3, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 1, 2}}));
    vch.clear();

    vch.resize(4, 0);
    VectorWriter{vch, 4, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 0, 1, 2}}));
    VectorWriter{vch, 4, a, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{0, 0, 0, 0, 1, 2}}));
    vch.clear();

    VectorWriter{vch, 0, bytes};
    BOOST_CHECK((vch == std::vector<unsigned char>{{3, 4, 5, 6}}));
    VectorWriter{vch, 0, bytes};
    BOOST_CHECK((vch == std::vector<unsigned char>{{3, 4, 5, 6}}));
    vch.clear();

    vch.resize(4, 8);
    VectorWriter{vch, 2, a, bytes, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{8, 8, 1, 3, 4, 5, 6, 2}}));
    VectorWriter{vch, 2, a, bytes, b};
    BOOST_CHECK((vch == std::vector<unsigned char>{{8, 8, 1, 3, 4, 5, 6, 2}}));
    vch.clear();
}

BOOST_AUTO_TEST_CASE(streams_vector_reader)
{
    std::vector<unsigned char> vch = {1, 255, 3, 4, 5, 6};

    SpanReader reader{vch};
    BOOST_CHECK_EQUAL(reader.size(), 6U);
    BOOST_CHECK(!reader.empty());

    // Read a single byte as an unsigned char.
    unsigned char a;
    reader >> a;
    BOOST_CHECK_EQUAL(a, 1);
    BOOST_CHECK_EQUAL(reader.size(), 5U);
    BOOST_CHECK(!reader.empty());

    // Read a single byte as a int8_t.
    int8_t b;
    reader >> b;
    BOOST_CHECK_EQUAL(b, -1);
    BOOST_CHECK_EQUAL(reader.size(), 4U);
    BOOST_CHECK(!reader.empty());

    // Read a 4 bytes as an unsigned int.
    unsigned int c;
    reader >> c;
    BOOST_CHECK_EQUAL(c, 100992003U); // 3,4,5,6 in little-endian base-256
    BOOST_CHECK_EQUAL(reader.size(), 0U);
    BOOST_CHECK(reader.empty());

    // Reading after end of byte vector throws an error.
    signed int d;
    BOOST_CHECK_THROW(reader >> d, std::ios_base::failure);

    // Read a 4 bytes as a signed int from the beginning of the buffer.
    SpanReader new_reader{vch};
    new_reader >> d;
    BOOST_CHECK_EQUAL(d, 67370753); // 1,255,3,4 in little-endian base-256
    BOOST_CHECK_EQUAL(new_reader.size(), 2U);
    BOOST_CHECK(!new_reader.empty());

    // Reading after end of byte vector throws an error even if the reader is
    // not totally empty.
    BOOST_CHECK_THROW(new_reader >> d, std::ios_base::failure);
}

BOOST_AUTO_TEST_CASE(streams_vector_reader_rvalue)
{
    std::vector<uint8_t> data{0x82, 0xa7, 0x31};
    SpanReader reader{data};
    uint32_t varint = 0;
    // Deserialize into r-value
    reader >> VARINT(varint);
    BOOST_CHECK_EQUAL(varint, 54321U);
    BOOST_CHECK(reader.empty());
}

BOOST_AUTO_TEST_CASE(bitstream_reader_writer)
{
    DataStream data{};

    BitStreamWriter bit_writer{data};
    bit_writer.Write(0, 1);
    bit_writer.Write(2, 2);
    bit_writer.Write(6, 3);
    bit_writer.Write(11, 4);
    bit_writer.Write(1, 5);
    bit_writer.Write(32, 6);
    bit_writer.Write(7, 7);
    bit_writer.Write(30497, 16);
    bit_writer.Flush();

    DataStream data_copy{data};
    uint32_t serialized_int1;
    data >> serialized_int1;
    BOOST_CHECK_EQUAL(serialized_int1, uint32_t{0x7700C35A}); // NOTE: Serialized as LE
    uint16_t serialized_int2;
    data >> serialized_int2;
    BOOST_CHECK_EQUAL(serialized_int2, uint16_t{0x1072}); // NOTE: Serialized as LE

    BitStreamReader bit_reader{data_copy};
    BOOST_CHECK_EQUAL(bit_reader.Read(1), 0U);
    BOOST_CHECK_EQUAL(bit_reader.Read(2), 2U);
    BOOST_CHECK_EQUAL(bit_reader.Read(3), 6U);
    BOOST_CHECK_EQUAL(bit_reader.Read(4), 11U);
    BOOST_CHECK_EQUAL(bit_reader.Read(5), 1U);
    BOOST_CHECK_EQUAL(bit_reader.Read(6), 32U);
    BOOST_CHECK_EQUAL(bit_reader.Read(7), 7U);
    BOOST_CHECK_EQUAL(bit_reader.Read(16), 30497U);
    BOOST_CHECK_THROW(bit_reader.Read(8), std::ios_base::failure);
}

BOOST_AUTO_TEST_CASE(streams_serializedata_xor)
{
    std::vector<std::byte> in;

    // Degenerate case
    {
        DataStream ds{in};
        ds.Xor({0x00, 0x00});
        BOOST_CHECK_EQUAL(""s, ds.str());
    }

    in.push_back(std::byte{0x0f});
    in.push_back(std::byte{0xf0});

    // Single character key
    {
        DataStream ds{in};
        ds.Xor({0xff});
        BOOST_CHECK_EQUAL("\xf0\x0f"s, ds.str());
    }

    // Multi character key

    in.clear();
    in.push_back(std::byte{0xf0});
    in.push_back(std::byte{0x0f});

    {
        DataStream ds{in};
        ds.Xor({0xff, 0x0f});
        BOOST_CHECK_EQUAL("\x0f\x00"s, ds.str());
    }
}

BOOST_AUTO_TEST_CASE(streams_buffered_file)
{
    fs::path streams_test_filename = m_args.GetDataDirBase() / "streams_test_tmp";
    AutoFile file{fsbridge::fopen(streams_test_filename, "w+b")};

    // The value at each offset is the offset.
    for (uint8_t j = 0; j < 40; ++j) {
        file << j;
    }
    std::rewind(file.Get());

    // The buffer size (second arg) must be greater than the rewind
    // amount (third arg).
    try {
        BufferedFile bfbad{file, 25, 25};
        BOOST_CHECK(false);
    } catch (const std::exception& e) {
        BOOST_CHECK(strstr(e.what(),
                        "Rewind limit must be less than buffer size") != nullptr);
    }

    // The buffer is 25 bytes, allow rewinding 10 bytes.
    BufferedFile bf{file, 25, 10};
    BOOST_CHECK(!bf.eof());

    uint8_t i;
    bf >> i;
    BOOST_CHECK_EQUAL(i, 0);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 1);

    // After reading bytes 0 and 1, we're positioned at 2.
    BOOST_CHECK_EQUAL(bf.GetPos(), 2U);

    // Rewind to offset 0, ok (within the 10 byte window).
    BOOST_CHECK(bf.SetPos(0));
    bf >> i;
    BOOST_CHECK_EQUAL(i, 0);

    // We can go forward to where we've been, but beyond may fail.
    BOOST_CHECK(bf.SetPos(2));
    bf >> i;
    BOOST_CHECK_EQUAL(i, 2);

    // If you know the maximum number of bytes that should be
    // read to deserialize the variable, you can limit the read
    // extent. The current file offset is 3, so the following
    // SetLimit() allows zero bytes to be read.
    BOOST_CHECK(bf.SetLimit(3));
    try {
        bf >> i;
        BOOST_CHECK(false);
    } catch (const std::exception& e) {
        BOOST_CHECK(strstr(e.what(),
                           "Attempt to position past buffer limit") != nullptr);
    }
    // The default argument removes the limit completely.
    BOOST_CHECK(bf.SetLimit());
    // The read position should still be at 3 (no change).
    BOOST_CHECK_EQUAL(bf.GetPos(), 3U);

    // Read from current offset, 3, forward until position 10.
    for (uint8_t j = 3; j < 10; ++j) {
        bf >> i;
        BOOST_CHECK_EQUAL(i, j);
    }
    BOOST_CHECK_EQUAL(bf.GetPos(), 10U);

    // We're guaranteed (just barely) to be able to rewind to zero.
    BOOST_CHECK(bf.SetPos(0));
    BOOST_CHECK_EQUAL(bf.GetPos(), 0U);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 0);

    // We can set the position forward again up to the farthest
    // into the stream we've been, but no farther. (Attempting
    // to go farther may succeed, but it's not guaranteed.)
    BOOST_CHECK(bf.SetPos(10));
    bf >> i;
    BOOST_CHECK_EQUAL(i, 10);
    BOOST_CHECK_EQUAL(bf.GetPos(), 11U);

    // Now it's only guaranteed that we can rewind to offset 1
    // (current read position, 11, minus rewind amount, 10).
    BOOST_CHECK(bf.SetPos(1));
    BOOST_CHECK_EQUAL(bf.GetPos(), 1U);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 1);

    // We can stream into large variables, even larger than
    // the buffer size.
    BOOST_CHECK(bf.SetPos(11));
    {
        uint8_t a[40 - 11];
        bf >> a;
        for (uint8_t j = 0; j < sizeof(a); ++j) {
            BOOST_CHECK_EQUAL(a[j], 11 + j);
        }
    }
    BOOST_CHECK_EQUAL(bf.GetPos(), 40U);

    // We've read the entire file, the next read should throw.
    try {
        bf >> i;
        BOOST_CHECK(false);
    } catch (const std::exception& e) {
        BOOST_CHECK(strstr(e.what(),
                        "BufferedFile::Fill: end of file") != nullptr);
    }
    // Attempting to read beyond the end sets the EOF indicator.
    BOOST_CHECK(bf.eof());

    // Still at offset 40, we can go back 10, to 30.
    BOOST_CHECK_EQUAL(bf.GetPos(), 40U);
    BOOST_CHECK(bf.SetPos(30));
    bf >> i;
    BOOST_CHECK_EQUAL(i, 30);
    BOOST_CHECK_EQUAL(bf.GetPos(), 31U);

    // We're too far to rewind to position zero.
    BOOST_CHECK(!bf.SetPos(0));
    // But we should now be positioned at least as far back as allowed
    // by the rewind window (relative to our farthest read position, 40).
    BOOST_CHECK(bf.GetPos() <= 30U);

    // We can explicitly close the file, or the destructor will do it.
    file.fclose();

    fs::remove(streams_test_filename);
}

BOOST_AUTO_TEST_CASE(streams_buffered_file_skip)
{
    fs::path streams_test_filename = m_args.GetDataDirBase() / "streams_test_tmp";
    AutoFile file{fsbridge::fopen(streams_test_filename, "w+b")};
    // The value at each offset is the byte offset (e.g. byte 1 in the file has the value 0x01).
    for (uint8_t j = 0; j < 40; ++j) {
        file << j;
    }
    std::rewind(file.Get());

    // The buffer is 25 bytes, allow rewinding 10 bytes.
    BufferedFile bf{file, 25, 10};

    uint8_t i;
    // This is like bf >> (7-byte-variable), in that it will cause data
    // to be read from the file into memory, but it's not copied to us.
    bf.SkipTo(7);
    BOOST_CHECK_EQUAL(bf.GetPos(), 7U);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 7);

    // The bytes in the buffer up to offset 7 are valid and can be read.
    BOOST_CHECK(bf.SetPos(0));
    bf >> i;
    BOOST_CHECK_EQUAL(i, 0);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 1);

    bf.SkipTo(11);
    bf >> i;
    BOOST_CHECK_EQUAL(i, 11);

    // SkipTo() honors the transfer limit; we can't position beyond the limit.
    bf.SetLimit(13);
    try {
        bf.SkipTo(14);
        BOOST_CHECK(false);
    } catch (const std::exception& e) {
        BOOST_CHECK(strstr(e.what(), "Attempt to position past buffer limit") != nullptr);
    }

    // We can position exactly to the transfer limit.
    bf.SkipTo(13);
    BOOST_CHECK_EQUAL(bf.GetPos(), 13U);

    file.fclose();
    fs::remove(streams_test_filename);
}

BOOST_AUTO_TEST_CASE(streams_buffered_file_rand)
{
    // Make this test deterministic.
    SeedInsecureRand(SeedRand::ZEROS);

    fs::path streams_test_filename = m_args.GetDataDirBase() / "streams_test_tmp";
    for (int rep = 0; rep < 50; ++rep) {
        AutoFile file{fsbridge::fopen(streams_test_filename, "w+b")};
        size_t fileSize = InsecureRandRange(256);
        for (uint8_t i = 0; i < fileSize; ++i) {
            file << i;
        }
        std::rewind(file.Get());

        size_t bufSize = InsecureRandRange(300) + 1;
        size_t rewindSize = InsecureRandRange(bufSize);
        BufferedFile bf{file, bufSize, rewindSize};
        size_t currentPos = 0;
        size_t maxPos = 0;
        for (int step = 0; step < 100; ++step) {
            if (currentPos >= fileSize)
                break;

            // We haven't read to the end of the file yet.
            BOOST_CHECK(!bf.eof());
            BOOST_CHECK_EQUAL(bf.GetPos(), currentPos);

            // Pretend the file consists of a series of objects of varying
            // sizes; the boundaries of the objects can interact arbitrarily
            // with the CBufferFile's internal buffer. These first three
            // cases simulate objects of various sizes (1, 2, 5 bytes).
            switch (InsecureRandRange(6)) {
            case 0: {
                uint8_t a[1];
                if (currentPos + 1 > fileSize)
                    continue;
                bf.SetLimit(currentPos + 1);
                bf >> a;
                for (uint8_t i = 0; i < 1; ++i) {
                    BOOST_CHECK_EQUAL(a[i], currentPos);
                    currentPos++;
                }
                break;
            }
            case 1: {
                uint8_t a[2];
                if (currentPos + 2 > fileSize)
                    continue;
                bf.SetLimit(currentPos + 2);
                bf >> a;
                for (uint8_t i = 0; i < 2; ++i) {
                    BOOST_CHECK_EQUAL(a[i], currentPos);
                    currentPos++;
                }
                break;
            }
            case 2: {
                uint8_t a[5];
                if (currentPos + 5 > fileSize)
                    continue;
                bf.SetLimit(currentPos + 5);
                bf >> a;
                for (uint8_t i = 0; i < 5; ++i) {
                    BOOST_CHECK_EQUAL(a[i], currentPos);
                    currentPos++;
                }
                break;
            }
            case 3: {
                // SkipTo is similar to the "read" cases above, except
                // we don't receive the data.
                size_t skip_length{static_cast<size_t>(InsecureRandRange(5))};
                if (currentPos + skip_length > fileSize) continue;
                bf.SetLimit(currentPos + skip_length);
                bf.SkipTo(currentPos + skip_length);
                currentPos += skip_length;
                break;
            }
            case 4: {
                // Find a byte value (that is at or ahead of the current position).
                size_t find = currentPos + InsecureRandRange(8);
                if (find >= fileSize)
                    find = fileSize - 1;
                bf.FindByte(std::byte(find));
                // The value at each offset is the offset.
                BOOST_CHECK_EQUAL(bf.GetPos(), find);
                currentPos = find;

                bf.SetLimit(currentPos + 1);
                uint8_t i;
                bf >> i;
                BOOST_CHECK_EQUAL(i, currentPos);
                currentPos++;
                break;
            }
            case 5: {
                size_t requestPos = InsecureRandRange(maxPos + 4);
                bool okay = bf.SetPos(requestPos);
                // The new position may differ from the requested position
                // because we may not be able to rewind beyond the rewind
                // window, and we may not be able to move forward beyond the
                // farthest position we've reached so far.
                currentPos = bf.GetPos();
                BOOST_CHECK_EQUAL(okay, currentPos == requestPos);
                // Check that we can position within the rewind window.
                if (requestPos <= maxPos &&
                    maxPos > rewindSize &&
                    requestPos >= maxPos - rewindSize) {
                    // We requested a position within the rewind window.
                    BOOST_CHECK(okay);
                }
                break;
            }
            }
            if (maxPos < currentPos)
                maxPos = currentPos;
        }
    }
    fs::remove(streams_test_filename);
}

BOOST_AUTO_TEST_CASE(streams_hashed)
{
    DataStream stream{};
    HashedSourceWriter hash_writer{stream};
    const std::string data{"bitcoin"};
    hash_writer << data;

    HashVerifier hash_verifier{stream};
    std::string result;
    hash_verifier >> result;
    BOOST_CHECK_EQUAL(data, result);
    BOOST_CHECK_EQUAL(hash_writer.GetHash(), hash_verifier.GetHash());
}

BOOST_AUTO_TEST_SUITE_END()