277 lines
9.7 KiB
JavaScript
277 lines
9.7 KiB
JavaScript
var assert = require('assert')
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var networks = require('../src/networks')
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var Address = require('../src/address')
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var ECKey = require('../src/eckey')
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var Transaction = require('../src/transaction').Transaction
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var Script = require('../src/script')
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var fixtureTxes = require('./fixtures/mainnet_tx')
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var fixtureTx1Hex = fixtureTxes.prevTx
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var fixtureTx2Hex = fixtureTxes.tx
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var fixtureTxBigHex = fixtureTxes.bigTx
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function b2h(b) { return new Buffer(b).toString('hex') }
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function h2b(h) { return new Buffer(h, 'hex') }
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describe('Transaction', function() {
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describe('deserialize', function() {
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var tx, serializedTx
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beforeEach(function() {
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serializedTx = [
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'0100000001344630cbff61fbc362f7e1ff2f11a344c29326e4ee96e78',
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'7dc0d4e5cc02fd069000000004a493046022100ef89701f460e8660c8',
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'0808a162bbf2d676f40a331a243592c36d6bd1f81d6bdf022100d29c0',
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'72f1b18e59caba6e1f0b8cadeb373fd33a25feded746832ec179880c2',
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'3901ffffffff0100f2052a010000001976a914dd40dedd8f7e3746662',
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'4c4dacc6362d8e7be23dd88ac00000000'
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].join('')
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tx = Transaction.fromHex(serializedTx)
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})
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it('returns the original after serialized again', function() {
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var actual = tx.toBuffer()
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var expected = serializedTx
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assert.equal(b2h(actual), expected)
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})
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it('does not mutate the input buffer', function() {
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var buffer = new Buffer(serializedTx, 'hex')
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Transaction.fromBuffer(buffer)
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assert.equal(buffer.toString('hex'), serializedTx)
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})
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it('decodes version correctly', function(){
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assert.equal(tx.version, 1)
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})
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it('decodes locktime correctly', function(){
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assert.equal(tx.locktime, 0)
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})
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it('decodes inputs correctly', function(){
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assert.equal(tx.ins.length, 1)
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var input = tx.ins[0]
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assert.equal(input.sequence, 4294967295)
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assert.equal(input.outpoint.index, 0)
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assert.equal(input.outpoint.hash, "69d02fc05c4e0ddc87e796eee42693c244a3112fffe1f762c3fb61ffcb304634")
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assert.equal(b2h(input.script.buffer),
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"493046022100ef89701f460e8660c80808a162bbf2d676f40a331a243592c36d6bd1f81d6bdf022100d29c072f1b18e59caba6e1f0b8cadeb373fd33a25feded746832ec179880c23901")
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})
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it('decodes outputs correctly', function(){
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assert.equal(tx.outs.length, 1)
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var output = tx.outs[0]
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assert.equal(output.value, 5000000000)
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assert.deepEqual(output.script, Address.fromBase58Check('n1gqLjZbRH1biT5o4qiVMiNig8wcCPQeB9').toScriptPubKey())
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})
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it('assigns hash to deserialized object', function(){
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var hashHex = "a9d4599e15b53f3eb531608ddb31f48c695c3d0b3538a6bda871e8b34f2f430c"
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assert.equal(tx.hash, hashHex)
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})
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it('decodes large inputs correctly', function() {
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// transaction has only 1 input
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var tx = new Transaction()
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tx.addInput("0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57", 0)
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tx.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3", 100)
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var buffer = tx.toBuffer()
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// we're going to replace the 8bit VarInt for tx.ins.length with a stretched 32bit equivalent
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var mutated = Buffer.concat([
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buffer.slice(0, 4),
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new Buffer([254, 1, 0, 0, 0]),
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buffer.slice(5)
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])
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// the deserialized-serialized transaction should return to its non-mutated state (== tx)
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var buffer2 = Transaction.fromBuffer(mutated).toBuffer()
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assert.deepEqual(buffer, buffer2)
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})
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})
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describe('creating a transaction', function() {
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var tx, prevTx
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beforeEach(function() {
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prevTx = Transaction.fromHex(fixtureTx1Hex)
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tx = new Transaction()
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})
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describe('addInput', function(){
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it('allows a Transaction object to be passed in', function(){
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tx.addInput(prevTx, 0)
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verifyTransactionIn()
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})
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it('allows a Transaction hash to be passed in', function(){
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tx.addInput("0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57", 0)
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verifyTransactionIn()
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})
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it('allows a TransactionIn object to be passed in', function(){
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var txCopy = tx.clone()
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txCopy.addInput(prevTx, 0)
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var transactionIn = txCopy.ins[0]
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tx.addInput(transactionIn)
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verifyTransactionIn()
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})
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it('allows a string in the form of txhash:index to be passed in', function(){
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tx.addInput("0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57:0")
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verifyTransactionIn()
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})
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function verifyTransactionIn(){
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assert.equal(tx.ins.length, 1)
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var input = tx.ins[0]
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assert.equal(input.sequence, 4294967295)
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assert.equal(input.outpoint.index, 0)
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assert.equal(input.outpoint.hash, "0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57")
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assert.deepEqual(input.script.buffer, [])
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}
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})
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describe('addOutput', function(){
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it('allows an address and a value to be passed in', function(){
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tx.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3", 40000)
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verifyTransactionOut()
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})
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it('allows an Address object and value to be passed in', function(){
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tx.addOutput(Address.fromBase58Check('15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3'), 40000)
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verifyTransactionOut()
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})
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it('allows a string in the form of address:index to be passed in', function(){
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tx.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3:40000")
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verifyTransactionOut()
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})
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it('allows a TransactionOut object to be passed in', function(){
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var txCopy = tx.clone()
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txCopy.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3:40000")
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var transactionOut = txCopy.outs[0]
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tx.addOutput(transactionOut)
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verifyTransactionOut()
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})
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it('supports alternative networks', function(){
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var addr = 'mkHJaNR7uuwRG1JrmTZsV4MszaTKjCBvCR'
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tx.addOutput(addr, 40000)
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verifyTransactionOut()
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assert.equal(tx.outs[0].address.toString(), addr)
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})
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function verifyTransactionOut(){
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assert.equal(tx.outs.length, 1)
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var output = tx.outs[0]
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assert.equal(output.value, 40000)
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assert.equal(b2h(output.script.buffer), "76a9143443bc45c560866cfeabf1d52f50a6ed358c69f288ac")
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}
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})
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describe('sign', function(){
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it('works', function(){
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tx.addInput("0cb859105100ebc3344f749c835c7af7d7103ec0d8cbc3d8ccbd5d28c3c36b57:0")
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tx.addOutput("15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3:40000")
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tx.addOutput("1Bu3bhwRmevHLAy1JrRB6AfcxfgDG2vXRd:50000")
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var key = ECKey.fromWIF('L44f7zxJ5Zw4EK9HZtyAnzCYz2vcZ5wiJf9AuwhJakiV4xVkxBeb')
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tx.sign(0, key)
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var script = prevTx.outs[0].script
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var sig = tx.ins[0].script.chunks[0]
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assert.equal(tx.validateSig(0, script, key.pub, sig), true)
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})
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})
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describe('validateSig', function(){
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var validTx
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beforeEach(function() {
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validTx = Transaction.fromHex(fixtureTx2Hex)
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})
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it('returns true for valid signature', function(){
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var key = ECKey.fromWIF('L44f7zxJ5Zw4EK9HZtyAnzCYz2vcZ5wiJf9AuwhJakiV4xVkxBeb')
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var script = prevTx.outs[0].script
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var sig = validTx.ins[0].script.chunks[0]
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assert.equal(validTx.validateSig(0, script, key.pub, sig), true)
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})
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})
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describe('estimateFee', function(){
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it('works for fixture tx 1', function(){
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var tx = Transaction.fromHex(fixtureTx1Hex)
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assert.equal(tx.estimateFee(), 20000)
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})
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it('works for fixture big tx', function(){
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var tx = Transaction.fromHex(fixtureTxBigHex)
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assert.equal(tx.estimateFee(), 60000)
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})
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it('allow feePerKb to be passed in as an argument', function(){
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var tx = Transaction.fromHex(fixtureTx2Hex)
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assert.equal(tx.estimateFee(10000), 10000)
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})
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it('allow feePerKb to be set to 0', function(){
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var tx = Transaction.fromHex(fixtureTx2Hex)
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assert.equal(tx.estimateFee(0), 0)
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})
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})
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})
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describe('signScriptSig', function() {
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it('works for multi-sig redeem script', function() {
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var tx = new Transaction()
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tx.addInput('d6f72aab8ff86ff6289842a0424319bf2ddba85dc7c52757912297f948286389', 0)
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tx.addOutput('mrCDrCybB6J1vRfbwM5hemdJz73FwDBC8r', 1)
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var privKeys = [
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'5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf',
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'5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAvUcVfH'
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].map(function(wif) {
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return ECKey.fromWIF(wif)
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})
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var pubKeys = privKeys.map(function(eck) { return eck.pub })
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var redeemScript = Script.createMultisigScriptPubKey(2, pubKeys)
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var signatures = privKeys.map(function(privKey) {
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return tx.signScriptSig(0, redeemScript, privKey)
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})
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var redeemScriptSig = Script.createMultisigScriptSig(signatures)
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var scriptSig = Script.createP2SHScriptSig(redeemScriptSig, redeemScript)
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tx.setScriptSig(0, scriptSig)
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signatures.forEach(function(sig, i){
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assert(tx.validateSig(0, redeemScript, privKeys[i].pub, sig))
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})
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var expected = '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'
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assert.equal(tx.toHex(), expected)
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})
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})
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})
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