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
|
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
#include "gtest/gtest.h"
#include "RiceDeltaDecoder.h"
#include "mozilla/ArrayUtils.h"
using namespace mozilla;
using namespace mozilla::safebrowsing;
struct TestingData {
std::vector<uint32_t> mExpectedDecoded;
std::vector<uint8_t> mEncoded;
uint32_t mRiceParameter;
};
static bool runOneTest(TestingData& aData);
TEST(RiceDeltaDecoder, SingleEncodedValue) {
TestingData td = { { 99 }, { 99 }, 0 };
ASSERT_TRUE(runOneTest(td));
}
// In this batch of tests, the encoded data would be like
// what we originally receive from the network. See comment
// in |runOneTest| for more detail.
TEST(RiceDeltaDecoder, Empty) {
// The following structure and testing data is copied from Chromium source code:
//
// https://chromium.googlesource.com/chromium/src.git/+/950f9975599768b6a08c7146cb4befa161be87aa/components/safe_browsing_db/v4_rice_unittest.cc#75
//
// and will be translated to our own testing format.
struct RiceDecodingTestInfo {
uint32_t mRiceParameter;
std::vector<uint32_t> mDeltas;
std::string mEncoded;
RiceDecodingTestInfo(uint32_t aRiceParameter,
const std::vector<uint32_t>& aDeltas,
const std::string& aEncoded)
: mRiceParameter(aRiceParameter)
, mDeltas(aDeltas)
, mEncoded(aEncoded)
{
}
};
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the media/webrtc/trunk/webrtc/LICENSE.
// ----- Start of Chromium test code ----
const std::vector<RiceDecodingTestInfo> TESTING_DATA_CHROMIUM = {
RiceDecodingTestInfo(2, {15, 9}, "\xf7\x2"),
RiceDecodingTestInfo(
28, {1777762129, 2093280223, 924369848},
"\xbf\xa8\x3f\xfb\xfc\xfb\x5e\x27\xe6\xc3\x1d\xc6\x38"),
RiceDecodingTestInfo(
28, {62763050, 1046523781, 192522171, 1800511020, 4442775, 582142548},
"\x54\x60\x7b\xe7\x0a\x5f\xc1\xdc\xee\x69\xde"
"\xfe\x58\x3c\xa3\xd6\xa5\xf2\x10\x8c\x4a\x59"
"\x56\x00"),
RiceDecodingTestInfo(
28, {26067715, 344823336, 8420095, 399843890, 95029378, 731622412,
35811335, 1047558127, 1117722715, 78698892},
"\x06\x86\x1b\x23\x14\xcb\x46\xf2\xaf\x07\x08\xc9\x88\x54\x1f\x41\x04"
"\xd5\x1a\x03\xeb\xe6\x3a\x80\x13\x91\x7b\xbf\x83\xf3\xb7\x85\xf1\x29"
"\x18\xb3\x61\x09"),
RiceDecodingTestInfo(
27, {225846818, 328287420, 166748623, 29117720, 552397365, 350353215,
558267528, 4738273, 567093445, 28563065, 55077698, 73091685,
339246010, 98242620, 38060941, 63917830, 206319759, 137700744},
"\x89\x98\xd8\x75\xbc\x44\x91\xeb\x39\x0c\x3e\x30\x9a\x78\xf3\x6a\xd4"
"\xd9\xb1\x9f\xfb\x70\x3e\x44\x3e\xa3\x08\x67\x42\xc2\x2b\x46\x69\x8e"
"\x3c\xeb\xd9\x10\x5a\x43\x9a\x32\xa5\x2d\x4e\x77\x0f\x87\x78\x20\xb6"
"\xab\x71\x98\x48\x0c\x9e\x9e\xd7\x23\x0c\x13\x43\x2c\xa9\x01"),
RiceDecodingTestInfo(
28, {339784008, 263128563, 63871877, 69723256, 826001074, 797300228,
671166008, 207712688},
std::string("\x21\xc5\x02\x91\xf9\x82\xd7\x57\xb8\xe9\x3c\xf0\xc8\x4f"
"\xe8\x64\x8d\x77\x62\x04\xd6\x85\x3f\x1c\x97\x00\x04\x1b"
"\x17\xc6",
30)),
RiceDecodingTestInfo(
28, {471820069, 196333855, 855579133, 122737976, 203433838, 85354544,
1307949392, 165938578, 195134475, 553930435, 49231136},
"\x95\x9c\x7d\xb0\x8f\xe8\xd9\xbd\xfe\x8c\x7f\x81\x53\x0d\x75\xdc\x4e"
"\x40\x18\x0c\x9a\x45\x3d\xa8\xdc\xfa\x26\x59\x40\x9e\x16\x08\x43\x77"
"\xc3\x4e\x04\x01\xa4\xe6\x5d\x00"),
RiceDecodingTestInfo(
27, {87336845, 129291033, 30906211, 433549264, 30899891, 53207875,
11959529, 354827862, 82919275, 489637251, 53561020, 336722992,
408117728, 204506246, 188216092, 9047110, 479817359, 230317256},
"\x1a\x4f\x69\x2a\x63\x9a\xf6\xc6\x2e\xaf\x73\xd0\x6f\xd7\x31\xeb\x77"
"\x1d\x43\xe3\x2b\x93\xce\x67\x8b\x59\xf9\x98\xd4\xda\x4f\x3c\x6f\xb0"
"\xe8\xa5\x78\x8d\x62\x36\x18\xfe\x08\x1e\x78\xd8\x14\x32\x24\x84\x61"
"\x1c\xf3\x37\x63\xc4\xa0\x88\x7b\x74\xcb\x64\xc8\x5c\xba\x05"),
RiceDecodingTestInfo(
28, {297968956, 19709657, 259702329, 76998112, 1023176123, 29296013,
1602741145, 393745181, 177326295, 55225536, 75194472},
"\xf1\x94\x0a\x87\x6c\x5f\x96\x90\xe3\xab\xf7\xc0\xcb\x2d\xe9\x76\xdb"
"\xf8\x59\x63\xc1\x6f\x7c\x99\xe3\x87\x5f\xc7\x04\xde\xb9\x46\x8e\x54"
"\xc0\xac\x4a\x03\x0d\x6c\x8f\x00"),
RiceDecodingTestInfo(
28, {532220688, 780594691, 436816483, 163436269, 573044456, 1069604,
39629436, 211410997, 227714491, 381562898, 75610008, 196754597,
40310339, 15204118, 99010842},
"\x41\x2c\xe4\xfe\x06\xdc\x0d\xbd\x31\xa5\x04\xd5\x6e\xdd\x9b\x43\xb7"
"\x3f\x11\x24\x52\x10\x80\x4f\x96\x4b\xd4\x80\x67\xb2\xdd\x52\xc9\x4e"
"\x02\xc6\xd7\x60\xde\x06\x92\x52\x1e\xdd\x35\x64\x71\x26\x2c\xfe\xcf"
"\x81\x46\xb2\x79\x01"),
RiceDecodingTestInfo(
28, {219354713, 389598618, 750263679, 554684211, 87381124, 4523497,
287633354, 801308671, 424169435, 372520475, 277287849},
"\xb2\x2c\x26\x3a\xcd\x66\x9c\xdb\x5f\x07\x2e\x6f\xe6\xf9\x21\x10\x52"
"\xd5\x94\xf4\x82\x22\x48\xf9\x9d\x24\xf6\xff\x2f\xfc\x6d\x3f\x21\x65"
"\x1b\x36\x34\x56\xea\xc4\x21\x00"),
};
// ----- End of Chromium test code ----
for (auto tdc : TESTING_DATA_CHROMIUM) {
// Populate chromium testing data to our native testing data struct.
TestingData d;
d.mRiceParameter = tdc.mRiceParameter; // Populate rice parameter.
// Populate encoded data from std::string to vector<uint8>.
d.mEncoded.resize(tdc.mEncoded.size());
memcpy(&d.mEncoded[0], tdc.mEncoded.c_str(), tdc.mEncoded.size());
// Populate deltas to expected decoded data. The first value would be just
// set to an arbitrary value, say 7, to avoid any assumption to the
// first value in the implementation.
d.mExpectedDecoded.resize(tdc.mDeltas.size() + 1);
for (size_t i = 0; i < d.mExpectedDecoded.size(); i++) {
if (0 == i) {
d.mExpectedDecoded[i] = 7; // "7" is an arbitrary starting value
} else {
d.mExpectedDecoded[i] = d.mExpectedDecoded[i - 1] + tdc.mDeltas[i - 1];
}
}
ASSERT_TRUE(runOneTest(d));
}
}
static bool
runOneTest(TestingData& aData)
{
RiceDeltaDecoder decoder(&aData.mEncoded[0], aData.mEncoded.size());
std::vector<uint32_t> decoded(aData.mExpectedDecoded.size());
uint32_t firstValue = aData.mExpectedDecoded[0];
bool rv = decoder.Decode(aData.mRiceParameter,
firstValue,
decoded.size() - 1, // # of entries (first value not included).
&decoded[0]);
return rv && decoded == aData.mExpectedDecoded;
}
|
