3 changed files with 127 additions and 11 deletions
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/* global describe, it */ |
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let assert = require('assert') |
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let bitcoin = require('../../') |
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let regtestUtils = require('./_regtest') |
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let regtest = regtestUtils.network |
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let bip68 = require('bip68') |
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let alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', regtest) |
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let bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', regtest) |
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describe('bitcoinjs-lib (transactions w/ CSV)', function () { |
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let hashType = bitcoin.Transaction.SIGHASH_ALL |
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// IF MTP (from when confirmed) > seconds, aQ can redeem
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function csvCheckSigOutput (aQ, bQ, sequence) { |
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return bitcoin.script.compile([ |
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bitcoin.opcodes.OP_IF, |
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bitcoin.script.number.encode(sequence), |
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bitcoin.opcodes.OP_CHECKSEQUENCEVERIFY, |
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bitcoin.opcodes.OP_DROP, |
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bitcoin.opcodes.OP_ELSE, |
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bQ.getPublicKeyBuffer(), |
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bitcoin.opcodes.OP_CHECKSIGVERIFY, |
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bitcoin.opcodes.OP_ENDIF, |
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aQ.getPublicKeyBuffer(), |
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bitcoin.opcodes.OP_CHECKSIG |
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]) |
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} |
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// expiry will pass, {Alice's signature} OP_TRUE
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it('can create (and broadcast via 3PBP) a Transaction where Alice can redeem the output after the expiry (in the future)', function (done) { |
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this.timeout(30000) |
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regtestUtils.height(function (err, height) { |
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if (err) return done(err) |
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// 5 blocks from now
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let sequence = bip68.encode({ blocks: 5 }) |
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let redeemScript = csvCheckSigOutput(alice, bob, sequence) |
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let scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript)) |
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let address = bitcoin.address.fromOutputScript(scriptPubKey, regtest) |
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// fund the P2SH(CSV) address
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regtestUtils.faucet(address, 1e5, function (err, unspent) { |
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if (err) return done(err) |
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let txb = new bitcoin.TransactionBuilder(regtest) |
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txb.addInput(unspent.txId, unspent.vout, sequence) |
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4) |
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// {Alice's signature} OP_TRUE
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let tx = txb.buildIncomplete() |
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let signatureHash = tx.hashForSignature(0, redeemScript, hashType) |
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let redeemScriptSig = bitcoin.script.scriptHash.input.encode([ |
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType), |
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bitcoin.opcodes.OP_TRUE |
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], redeemScript) |
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tx.setInputScript(0, redeemScriptSig) |
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// TODO: test that it failures _prior_ to expiry, unfortunately, race conditions when run concurrently
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// ...
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// into the future!
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regtestUtils.mine(10, function (err) { |
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if (err) return done(err) |
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regtestUtils.broadcast(tx.toHex(), function (err) { |
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if (err) return done(err) |
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regtestUtils.verify({ |
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txId: tx.getId(), |
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address: regtestUtils.RANDOM_ADDRESS, |
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vout: 0, |
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value: 7e4 |
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}, done) |
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}) |
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}) |
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}) |
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}) |
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}) |
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// expiry in the future, {Alice's signature} OP_TRUE
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it('can create (but fail to broadcast via 3PBP) a Transaction where Alice attempts to redeem before the expiry', function (done) { |
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this.timeout(30000) |
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// two hours after confirmation
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let sequence = bip68.encode({ seconds: 7168 }) |
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let redeemScript = csvCheckSigOutput(alice, bob, sequence) |
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let scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript)) |
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let address = bitcoin.address.fromOutputScript(scriptPubKey, regtest) |
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// fund the P2SH(CSV) address
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regtestUtils.faucet(address, 2e4, function (err, unspent) { |
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if (err) return done(err) |
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let txb = new bitcoin.TransactionBuilder(regtest) |
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txb.addInput(unspent.txId, unspent.vout, sequence) |
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txb.addOutput(regtestUtils.RANDOM_ADDRESS, 1e4) |
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// {Alice's signature} OP_TRUE
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let tx = txb.buildIncomplete() |
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let signatureHash = tx.hashForSignature(0, redeemScript, hashType) |
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let redeemScriptSig = bitcoin.script.scriptHash.input.encode([ |
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bitcoin.script.signature.encode(alice.sign(signatureHash), hashType), |
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bitcoin.script.signature.encode(bob.sign(signatureHash), hashType), |
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bitcoin.opcodes.OP_TRUE |
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], redeemScript) |
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tx.setInputScript(0, redeemScriptSig) |
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regtestUtils.broadcast(tx.toHex(), function (err) { |
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assert.throws(function () { |
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if (err) throw err |
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}, /Error: 64: non-BIP68-final/) |
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done() |
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}) |
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}) |
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}) |
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}) |
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