forked from bitcoinjs/bitcoinjs-lib
-
Notifications
You must be signed in to change notification settings - Fork 4
/
script.spec.ts
192 lines (162 loc) · 5.4 KB
/
script.spec.ts
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
import * as assert from 'assert';
import { describe, it } from 'mocha';
import * as bscript from '../src/script';
import * as fixtures from './fixtures/script.json';
const minimalData = require('minimaldata');
describe('script', () => {
// TODO
describe('isCanonicalPubKey', () => {
it('rejects if not provided a Buffer', () => {
assert.strictEqual(false, bscript.isCanonicalPubKey(0 as any));
});
it('rejects smaller than 33', () => {
for (let i = 0; i < 33; i++) {
assert.strictEqual(
false,
bscript.isCanonicalPubKey(Buffer.allocUnsafe(i)),
);
}
});
});
describe.skip('isCanonicalScriptSignature', () => {
assert.ok(true);
});
describe('fromASM/toASM', () => {
fixtures.valid.forEach(f => {
it('encodes/decodes ' + f.asm, () => {
const script = bscript.fromASM(f.asm);
assert.strictEqual(bscript.toASM(script), f.asm);
});
});
fixtures.invalid.fromASM.forEach(f => {
it('throws ' + f.description, () => {
assert.throws(() => {
bscript.fromASM(f.script);
}, new RegExp(f.description));
});
});
});
describe('toASM', () => {
const OP_RETURN = bscript.OPS.OP_RETURN;
it('encodes empty buffer as OP_0', () => {
const chunks = [OP_RETURN, Buffer.from([])];
assert.strictEqual(bscript.toASM(chunks), 'OP_RETURN OP_0');
});
for (let i = 1; i <= 16; i++) {
it(`encodes one byte buffer [${i}] as OP_${i}`, () => {
const chunks = [OP_RETURN, Buffer.from([i])];
assert.strictEqual(bscript.toASM(chunks), 'OP_RETURN OP_' + i);
});
}
});
describe('fromASM/toASM (templates)', () => {
fixtures.valid2.forEach(f => {
if (f.inputHex) {
const ih = bscript.toASM(Buffer.from(f.inputHex, 'hex'));
it('encodes/decodes ' + ih, () => {
const script = bscript.fromASM(f.input);
assert.strictEqual(script.toString('hex'), f.inputHex);
assert.strictEqual(bscript.toASM(script), f.input);
});
}
if (f.outputHex) {
it('encodes/decodes ' + f.output, () => {
const script = bscript.fromASM(f.output);
assert.strictEqual(script.toString('hex'), f.outputHex);
assert.strictEqual(bscript.toASM(script), f.output);
});
}
});
});
describe('isPushOnly', () => {
fixtures.valid.forEach(f => {
it('returns ' + !!f.stack + ' for ' + f.asm, () => {
const script = bscript.fromASM(f.asm);
const chunks = bscript.decompile(script);
assert.strictEqual(bscript.isPushOnly(chunks!), !!f.stack);
});
});
});
describe('toStack', () => {
fixtures.valid.forEach(f => {
it('returns ' + !!f.stack + ' for ' + f.asm, () => {
if (!f.stack || !f.asm) return;
const script = bscript.fromASM(f.asm);
const stack = bscript.toStack(script);
assert.deepStrictEqual(
stack.map(x => {
return x.toString('hex');
}),
f.stack,
);
assert.strictEqual(
bscript.toASM(bscript.compile(stack)),
f.asm,
'should rebuild same script from stack',
);
});
});
});
describe('compile (via fromASM)', () => {
fixtures.valid.forEach(f => {
it('compiles ' + f.asm, () => {
const scriptSig = bscript.fromASM(f.asm);
assert.strictEqual(scriptSig.toString('hex'), f.script);
if (f.nonstandard) {
const scriptSigNS = bscript.fromASM(f.nonstandard.scriptSig);
assert.strictEqual(scriptSigNS.toString('hex'), f.script);
}
});
});
});
describe('decompile', () => {
fixtures.valid.forEach(f => {
it('decompiles ' + f.asm, () => {
const chunks = bscript.decompile(Buffer.from(f.script, 'hex'));
assert.strictEqual(bscript.compile(chunks!).toString('hex'), f.script);
assert.strictEqual(bscript.toASM(chunks!), f.asm);
if (f.nonstandard) {
const chunksNS = bscript.decompile(
Buffer.from(f.nonstandard.scriptSigHex, 'hex'),
);
assert.strictEqual(
bscript.compile(chunksNS!).toString('hex'),
f.script,
);
// toASM converts verbatim, only `compile` transforms the script to a minimalpush compliant script
assert.strictEqual(bscript.toASM(chunksNS!), f.nonstandard.scriptSig);
}
});
});
fixtures.invalid.decompile.forEach(f => {
it(
'fails to decompile ' + f.script + ', because "' + f.description + '"',
() => {
const chunks = bscript.decompile(Buffer.from(f.script, 'hex'));
assert.strictEqual(chunks, null);
},
);
});
});
describe('SCRIPT_VERIFY_MINIMALDATA policy', () => {
fixtures.valid.forEach(f => {
it('compliant for scriptSig ' + f.asm, () => {
const script = Buffer.from(f.script, 'hex');
assert(minimalData(script));
});
});
function testEncodingForSize(num: number): void {
it('compliant for data PUSH of length ' + num, () => {
const buffer = Buffer.alloc(num);
const script = bscript.compile([buffer]);
assert(
minimalData(script),
'Failed for ' + num + ' length script: ' + script.toString('hex'),
);
});
}
for (let i = 0; i < 520; ++i) {
testEncodingForSize(i);
}
});
});