92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
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'use strict';
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// inspired in bitcoin core test:
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// https://github.com/bitcoin/bitcoin/blob/7d49a9173ab636d118c2a81fc3c3562192e7813a/src/test/sighash_tests.cpp
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var chai = chai || require('chai');
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var should = chai.should();
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var bitcore = bitcore || require('../bitcore');
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var Transaction = bitcore.Transaction;
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var Script = bitcore.Script;
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var Opcode = bitcore.Opcode;
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var randInt = function(low, high) {
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return Math.floor(Math.random() * (high - low + 1) + low);
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};
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var randUIntN = function(nBits) {
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return randInt(0, Math.pow(2, nBits));
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};
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var randUInt32 = function() {
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return randUIntN(32);
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};
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var randBool = function() {
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return Math.random() < 0.5;
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};
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var hexAlphabet = '0123456789abcdef';
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var randHex = function() {
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return hexAlphabet[randInt(0, 15)];
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};
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var randHexN = function(n) {
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var s = '';
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while (n--) {
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s += randHex();
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}
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return s;
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};
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var randTxHash = function() {
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return randHexN(64);
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};
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var randPick = function(list) {
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return list[randInt(0, list.length-1)];
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};
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var opList = Opcode.asList();
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var randomScript = function() {
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var s = new Script();
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var ops = randInt(0,10);
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for (var i=0; i<ops; i++) {
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var op = randPick(opList);
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s.writeOp(Opcode.map[op]);
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}
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return s;
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};
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var randomTx = function(single) {
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var tx = new Transaction({
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version: randUInt32(),
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lock_time: randBool() ? randUInt32() : 0
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});
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var insN = randInt(1, 5);
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var outsN = single ? insN : randInt(1, 5);
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for (var i = 0; i < insN; i++) {
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var txin = new Transaction.In({
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oTxHash: randTxHash(),
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oIndex: randInt(0, 4),
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script: randomScript().serialize(),
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sequence: randBool() ? randUInt32() : 0xffffffff
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});
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tx.ins.push(txin);
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}
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for (i = 0; i < outsN; i++) {
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var txout = Transaction.Out({
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value: randInt(0,100000000),
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script: randomScript().serialize()
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});
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tx.outs.push(txout);
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}
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return tx;
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};
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describe('Transaction sighash (#hashForSignature)', function() {
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for (var i = 0; i < 10; i++) {
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it('should hash correctly random tx #'+(i+1), function() {
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var tx = randomTx();
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console.log(tx);
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tx.hashForSignature(script, inIndex, hashType);
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return;
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});
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}
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});
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