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
|
// Copyright (c) 2012-2021 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 <script/script.h>
#include <test/util/setup_common.h>
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(script_segwit_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Valid)
{
uint256 dummy;
CScript p2wsh;
p2wsh << OP_0 << ToByteVector(dummy);
BOOST_CHECK(p2wsh.IsPayToWitnessScriptHash());
std::vector<unsigned char> bytes = {OP_0, 32};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(CScript(bytes.begin(), bytes.end()).IsPayToWitnessScriptHash());
}
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Invalid_NotOp0)
{
uint256 dummy;
CScript notp2wsh;
notp2wsh << OP_1 << ToByteVector(dummy);
BOOST_CHECK(!notp2wsh.IsPayToWitnessScriptHash());
}
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Invalid_Size)
{
uint160 dummy;
CScript notp2wsh;
notp2wsh << OP_0 << ToByteVector(dummy);
BOOST_CHECK(!notp2wsh.IsPayToWitnessScriptHash());
}
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Invalid_Nop)
{
uint256 dummy;
CScript notp2wsh;
notp2wsh << OP_0 << OP_NOP << ToByteVector(dummy);
BOOST_CHECK(!notp2wsh.IsPayToWitnessScriptHash());
}
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Invalid_EmptyScript)
{
CScript notp2wsh;
BOOST_CHECK(!notp2wsh.IsPayToWitnessScriptHash());
}
BOOST_AUTO_TEST_CASE(IsPayToWitnessScriptHash_Invalid_Pushdata)
{
// A script is not P2WSH if OP_PUSHDATA is used to push the hash.
std::vector<unsigned char> bytes = {OP_0, OP_PUSHDATA1, 32};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(!CScript(bytes.begin(), bytes.end()).IsPayToWitnessScriptHash());
bytes = {OP_0, OP_PUSHDATA2, 32, 0};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(!CScript(bytes.begin(), bytes.end()).IsPayToWitnessScriptHash());
bytes = {OP_0, OP_PUSHDATA4, 32, 0, 0, 0};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(!CScript(bytes.begin(), bytes.end()).IsPayToWitnessScriptHash());
}
namespace {
bool IsExpectedWitnessProgram(const CScript& script, const int expectedVersion, const std::vector<unsigned char>& expectedProgram)
{
int actualVersion;
std::vector<unsigned char> actualProgram;
if (!script.IsWitnessProgram(actualVersion, actualProgram)) {
return false;
}
BOOST_CHECK_EQUAL(actualVersion, expectedVersion);
BOOST_CHECK(actualProgram == expectedProgram);
return true;
}
bool IsNoWitnessProgram(const CScript& script)
{
int dummyVersion;
std::vector<unsigned char> dummyProgram;
return !script.IsWitnessProgram(dummyVersion, dummyProgram);
}
} // anonymous namespace
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Valid)
{
// Witness programs have a minimum data push of 2 bytes.
std::vector<unsigned char> program = {42, 18};
CScript wit;
wit << OP_0 << program;
BOOST_CHECK(IsExpectedWitnessProgram(wit, 0, program));
wit.clear();
// Witness programs have a maximum data push of 40 bytes.
program.resize(40);
wit << OP_16 << program;
BOOST_CHECK(IsExpectedWitnessProgram(wit, 16, program));
program.resize(32);
std::vector<unsigned char> bytes = {OP_5, static_cast<unsigned char>(program.size())};
bytes.insert(bytes.end(), program.begin(), program.end());
BOOST_CHECK(IsExpectedWitnessProgram(CScript(bytes.begin(), bytes.end()), 5, program));
}
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Invalid_Version)
{
std::vector<unsigned char> program(10);
CScript nowit;
nowit << OP_1NEGATE << program;
BOOST_CHECK(IsNoWitnessProgram(nowit));
}
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Invalid_Size)
{
std::vector<unsigned char> program(1);
CScript nowit;
nowit << OP_0 << program;
BOOST_CHECK(IsNoWitnessProgram(nowit));
nowit.clear();
program.resize(41);
nowit << OP_0 << program;
BOOST_CHECK(IsNoWitnessProgram(nowit));
}
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Invalid_Nop)
{
std::vector<unsigned char> program(10);
CScript nowit;
nowit << OP_0 << OP_NOP << program;
BOOST_CHECK(IsNoWitnessProgram(nowit));
}
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Invalid_EmptyScript)
{
CScript nowit;
BOOST_CHECK(IsNoWitnessProgram(nowit));
}
BOOST_AUTO_TEST_CASE(IsWitnessProgram_Invalid_Pushdata)
{
// A script is no witness program if OP_PUSHDATA is used to push the hash.
std::vector<unsigned char> bytes = {OP_0, OP_PUSHDATA1, 32};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(IsNoWitnessProgram(CScript(bytes.begin(), bytes.end())));
bytes = {OP_0, OP_PUSHDATA2, 32, 0};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(IsNoWitnessProgram(CScript(bytes.begin(), bytes.end())));
bytes = {OP_0, OP_PUSHDATA4, 32, 0, 0, 0};
bytes.insert(bytes.end(), 32, 0);
BOOST_CHECK(IsNoWitnessProgram(CScript(bytes.begin(), bytes.end())));
}
BOOST_AUTO_TEST_SUITE_END()
|
