295 lines
9.7 KiB
JavaScript
295 lines
9.7 KiB
JavaScript
var assert = require('assert')
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var scripts = require('../src/scripts')
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var BigInteger = require('bigi')
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var ECKey = require('../src/eckey')
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var Script = require('../src/script')
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var Transaction = require('../src/transaction')
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var TransactionBuilder = require('../src/transaction_builder')
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var fixtures = require('./fixtures/transaction_builder')
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describe('TransactionBuilder', function() {
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var privAddress, privScript
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var prevTx, prevTxHash
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var privKey
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var txb
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beforeEach(function() {
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txb = new TransactionBuilder()
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prevTx = new Transaction()
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prevTx.addOutput('1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH', 0)
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prevTx.addOutput('1cMh228HTCiwS8ZsaakH8A8wze1JR5ZsP', 1)
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prevTxHash = prevTx.getHash()
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privKey = new ECKey(BigInteger.ONE, false)
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privAddress = privKey.pub.getAddress()
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privScript = privAddress.toOutputScript()
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})
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describe('addInput', function() {
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it('accepts a txHash, index [and sequence number]', function() {
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var vin = txb.addInput(prevTxHash, 1, 54)
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assert.equal(vin, 0)
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var txin = txb.tx.ins[0]
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assert.equal(txin.hash, prevTxHash)
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assert.equal(txin.index, 1)
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assert.equal(txin.sequence, 54)
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assert.equal(txb.prevOutScripts[0], undefined)
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})
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it('accepts a txHash, index [, sequence number and scriptPubKey]', function() {
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var vin = txb.addInput(prevTxHash, 1, 54, prevTx.outs[1].script)
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assert.equal(vin, 0)
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var txin = txb.tx.ins[0]
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assert.equal(txin.hash, prevTxHash)
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assert.equal(txin.index, 1)
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assert.equal(txin.sequence, 54)
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assert.equal(txb.prevOutScripts[0], prevTx.outs[1].script)
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})
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it('accepts a prevTx, index [and sequence number]', function() {
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var vin = txb.addInput(prevTx, 1, 54)
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assert.equal(vin, 0)
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var txin = txb.tx.ins[0]
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assert.deepEqual(txin.hash, prevTxHash)
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assert.equal(txin.index, 1)
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assert.equal(txin.sequence, 54)
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assert.equal(txb.prevOutScripts[0], prevTx.outs[1].script)
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})
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it('returns the input index', function() {
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assert.equal(txb.addInput(prevTxHash, 0), 0)
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assert.equal(txb.addInput(prevTxHash, 1), 1)
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})
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it('throws if prevOutScript is not supported', function() {
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assert.throws(function() {
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txb.addInput(prevTxHash, 0, undefined, Script.EMPTY)
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}, /PrevOutScript not supported \(nonstandard\)/)
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})
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it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function() {
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txb.addInput(prevTxHash, 0)
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txb.sign(0, privKey)
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assert.throws(function() {
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txb.addInput(prevTxHash, 0)
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}, /No, this would invalidate signatures/)
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})
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})
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describe('addOutput', function() {
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it('throws if SIGHASH_ALL has been used to sign any existing scriptSigs', function() {
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txb.addInput(prevTxHash, 0)
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txb.addOutput(privScript, 2000)
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txb.sign(0, privKey)
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assert.throws(function() {
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txb.addOutput(privScript, 9000)
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}, /No, this would invalidate signatures/)
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})
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})
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describe('sign', function() {
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describe('when prevOutScript is undefined', function() {
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it('assumes pubKeyHash', function() {
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txb.addInput(prevTxHash, 0)
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txb.sign(0, privKey)
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assert.strictEqual(txb.signatures[0].redeemScript, undefined)
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assert.equal(txb.signatures[0].scriptType, 'pubkeyhash')
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})
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})
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it('throws if scriptType doesn\'t support multiple signatures', function() {
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txb.addInput(prevTxHash, 0)
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txb.sign(0, privKey)
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assert.throws(function() {
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txb.sign(0, privKey)
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}, /pubkeyhash doesn\'t support multiple signatures/)
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})
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describe('when redeemScript is undefined', function() {
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it('throws if prevOutScript is P2SH', function() {
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var privScriptP2SH = scripts.scriptHashOutput(privScript.getHash())
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txb.addInput(prevTxHash, 0, undefined, privScriptP2SH)
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assert.throws(function() {
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txb.sign(0, privKey)
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}, /PrevOutScript is P2SH, missing redeemScript/)
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})
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})
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describe('when redeemScript is defined', function() {
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it('assumes scriptHash', function() {
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txb.addInput(prevTxHash, 0)
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txb.sign(0, privKey, privScript)
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assert.equal(txb.signatures[0].redeemScript, privScript)
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})
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it('throws if prevOutScript is not P2SH', function() {
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txb.addInput(prevTx, 0)
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assert.throws(function() {
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txb.sign(0, privKey, privScript)
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}, /PrevOutScript must be P2SH/)
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})
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it('throws if redeemScript is P2SH', function() {
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txb.addInput(prevTxHash, 0)
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var privScriptP2SH = scripts.scriptHashOutput(privScript.getHash())
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assert.throws(function() {
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txb.sign(0, privKey, privScriptP2SH)
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}, /RedeemScript can\'t be P2SH/)
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})
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it('throws if redeemScript not supported', function() {
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txb.addInput(prevTxHash, 0)
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assert.throws(function() {
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txb.sign(0, privKey, Script.EMPTY)
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}, /RedeemScript not supported \(nonstandard\)/)
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})
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})
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})
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describe('build', function() {
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fixtures.valid.build.forEach(function(f) {
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it('builds the correct transaction', function() {
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f.inputs.forEach(function(input) {
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var prevTxScript
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if (input.prevTxScript) {
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prevTxScript = Script.fromASM(input.prevTxScript)
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}
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txb.addInput(input.prevTx, input.index, input.sequence, prevTxScript)
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})
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f.outputs.forEach(function(output) {
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var script = Script.fromASM(output.script)
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txb.addOutput(script, output.value)
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})
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f.inputs.forEach(function(input, index) {
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var redeemScript
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if (input.redeemScript) {
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redeemScript = Script.fromASM(input.redeemScript)
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}
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input.privKeys.forEach(function(wif) {
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var privKey = ECKey.fromWIF(wif)
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txb.sign(index, privKey, redeemScript)
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})
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})
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// FIXME: add support for locktime/version in TransactionBuilder API
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if (f.version !== undefined) txb.tx.version = f.version
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if (f.locktime !== undefined) txb.tx.locktime = f.locktime
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var tx = txb.build()
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assert.equal(tx.getId(), f.txid)
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assert.equal(tx.toHex(), f.txhex)
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})
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})
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fixtures.invalid.build.forEach(function(f) {
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it('throws on ' + f.exception, function() {
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f.inputs.forEach(function(input) {
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var prevTxScript
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if (input.prevTxScript) {
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prevTxScript = Script.fromASM(input.prevTxScript)
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}
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txb.addInput(input.prevTx, input.index, input.sequence, prevTxScript)
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})
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f.outputs.forEach(function(output) {
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var script = Script.fromASM(output.script)
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txb.addOutput(script, output.value)
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})
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f.inputs.forEach(function(input, index) {
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var redeemScript
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if (input.redeemScript) {
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redeemScript = Script.fromASM(input.redeemScript)
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}
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input.privKeys.forEach(function(wif) {
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var privKey = ECKey.fromWIF(wif)
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txb.sign(index, privKey, redeemScript)
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})
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})
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assert.throws(function() {
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txb.build()
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}, new RegExp(f.exception))
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})
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})
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})
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describe('fromTransaction', function() {
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fixtures.valid.build.forEach(function(f) {
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it('builds the correct TransactionBuilder for ' + f.description, function() {
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var tx = Transaction.fromHex(f.txhex)
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var txb = TransactionBuilder.fromTransaction(tx)
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assert.equal(txb.build().toHex(), f.txhex)
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})
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})
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fixtures.invalid.fromTransaction.forEach(function(f) {
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it('throws on ' + f.exception, function() {
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var tx = Transaction.fromHex(f.hex)
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assert.throws(function() {
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TransactionBuilder.fromTransaction(tx)
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}, new RegExp(f.exception))
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})
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})
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it('works for the P2SH multisig case', function() {
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var privKeys = [
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"91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgwmaKkrx",
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"91avARGdfge8E4tZfYLoxeJ5sGBdNJQH4kvjJoQFacbgww7vXtT"
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].map(ECKey.fromWIF)
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var redeemScript = Script.fromASM("OP_2 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 04c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee51ae168fea63dc339a3c58419466ceaeef7f632653266d0e1236431a950cfe52a OP_2 OP_CHECKMULTISIG")
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txb.addInput("4971f016798a167331bcbc67248313fbc444c6e92e4416efd06964425588f5cf", 0)
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txb.addOutput("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH", 10000)
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txb.sign(0, privKeys[0], redeemScript)
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var tx = txb.buildIncomplete()
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// in another galaxy...
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// ... far, far away
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var txb2 = TransactionBuilder.fromTransaction(tx)
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// [you should] verify that Transaction is what you want...
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// ... then sign it
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txb2.sign(0, privKeys[1], redeemScript)
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var tx2 = txb2.build()
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assert.equal(tx2.toHex(), '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')
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})
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})
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})
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