bitcoinjs-lib/test/integration/csv.js
2018-05-30 15:52:03 +10:00

126 lines
4.4 KiB
JavaScript

/* global describe, it, before */
let assert = require('assert')
let bitcoin = require('../../')
let regtestUtils = require('./_regtest')
let regtest = regtestUtils.network
let bip68 = require('bip68')
let alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', regtest)
let bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', regtest)
describe('bitcoinjs-lib (transactions w/ CSV)', function () {
// force update MTP
before(function (done) {
regtestUtils.mine(11, done)
})
let hashType = bitcoin.Transaction.SIGHASH_ALL
// IF MTP (from when confirmed) > seconds, aQ can redeem
function csvCheckSigOutput (aQ, bQ, sequence) {
return bitcoin.script.compile([
bitcoin.opcodes.OP_IF,
bitcoin.script.number.encode(sequence),
bitcoin.opcodes.OP_CHECKSEQUENCEVERIFY,
bitcoin.opcodes.OP_DROP,
bitcoin.opcodes.OP_ELSE,
bQ.publicKey,
bitcoin.opcodes.OP_CHECKSIGVERIFY,
bitcoin.opcodes.OP_ENDIF,
aQ.publicKey,
bitcoin.opcodes.OP_CHECKSIG
])
}
// expiry will pass, {Alice's signature} OP_TRUE
it('can create (and broadcast via 3PBP) a Transaction where Alice can redeem the output after the expiry (in the future)', function (done) {
this.timeout(30000)
regtestUtils.height(function (err, height) {
if (err) return done(err)
// 5 blocks from now
let sequence = bip68.encode({ blocks: 5 })
let redeemScript = csvCheckSigOutput(alice, bob, sequence)
let scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
let address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
// fund the P2SH(CSV) address
regtestUtils.faucet(address, 1e5, function (err, unspent) {
if (err) return done(err)
let txb = new bitcoin.TransactionBuilder(regtest)
txb.addInput(unspent.txId, unspent.vout, sequence)
txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4)
// {Alice's signature} OP_TRUE
let tx = txb.buildIncomplete()
let signatureHash = tx.hashForSignature(0, redeemScript, hashType)
let redeemScriptSig = bitcoin.script.scriptHash.input.encode([
bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
bitcoin.opcodes.OP_TRUE
], redeemScript)
tx.setInputScript(0, redeemScriptSig)
// TODO: test that it failures _prior_ to expiry, unfortunately, race conditions when run concurrently
// ...
// into the future!
regtestUtils.mine(10, function (err) {
if (err) return done(err)
regtestUtils.broadcast(tx.toHex(), function (err) {
if (err) return done(err)
regtestUtils.verify({
txId: tx.getId(),
address: regtestUtils.RANDOM_ADDRESS,
vout: 0,
value: 7e4
}, done)
})
})
})
})
})
// expiry in the future, {Alice's signature} OP_TRUE
it('can create (but fail to broadcast via 3PBP) a Transaction where Alice attempts to redeem before the expiry', function (done) {
this.timeout(30000)
// two hours after confirmation
let sequence = bip68.encode({ seconds: 7168 })
let redeemScript = csvCheckSigOutput(alice, bob, sequence)
let scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
let address = bitcoin.address.fromOutputScript(scriptPubKey, regtest)
// fund the P2SH(CSV) address
regtestUtils.faucet(address, 2e4, function (err, unspent) {
if (err) return done(err)
let txb = new bitcoin.TransactionBuilder(regtest)
txb.addInput(unspent.txId, unspent.vout, sequence)
txb.addOutput(regtestUtils.RANDOM_ADDRESS, 1e4)
// {Alice's signature} OP_TRUE
let tx = txb.buildIncomplete()
let signatureHash = tx.hashForSignature(0, redeemScript, hashType)
let redeemScriptSig = bitcoin.script.scriptHash.input.encode([
bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
bitcoin.script.signature.encode(bob.sign(signatureHash), hashType),
bitcoin.opcodes.OP_TRUE
], redeemScript)
tx.setInputScript(0, redeemScriptSig)
regtestUtils.broadcast(tx.toHex(), function (err) {
assert.throws(function () {
if (err) throw err
}, /Error: 64: non-BIP68-final/)
done()
})
})
})
})