478 lines
15 KiB
JavaScript
478 lines
15 KiB
JavaScript
var Wallet = require('../src/wallet.js')
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var HDNode = require('../src/hdwallet.js')
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var T = require('../src/transaction.js')
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var Transaction = T.Transaction
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var TransactionOut = T.TransactionOut
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var Script = require('../src/script.js')
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var convert = require('../src/convert.js')
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var assert = require('assert')
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var SHA256 = require('crypto-js/sha256')
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var Crypto = require('crypto-js')
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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 sinon = require('sinon')
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describe('Wallet', function() {
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var seed, wallet;
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beforeEach(function(){
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seed = convert.wordArrayToBytes(SHA256("don't use a string seed like this in real life"))
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wallet = new Wallet(seed)
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})
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describe('constructor', function() {
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it('defaults to Bitcoin mainnet', function() {
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assert.equal(wallet.getMasterKey().network, 'mainnet')
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})
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it("generates m/0' as the main account", function() {
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var mainAccount = wallet.getAccountZero()
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assert.equal(mainAccount.index, 0 + HDNode.HIGHEST_BIT)
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assert.equal(mainAccount.depth, 1)
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})
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it("generates m/0'/0 as the external account", function() {
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var account = wallet.getExternalAccount()
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assert.equal(account.index, 0)
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assert.equal(account.depth, 2)
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})
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it("generates m/0'/1 as the internal account", function() {
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var account = wallet.getInternalAccount()
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assert.equal(account.index, 1)
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assert.equal(account.depth, 2)
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})
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describe('when seed is not specified', function(){
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it('generates a seed', function(){
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var wallet = new Wallet()
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assert.ok(wallet.getMasterKey())
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})
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})
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describe('constructor options', function() {
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beforeEach(function() {
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wallet = new Wallet(seed, {network: 'testnet'})
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})
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it('uses the network if specified', function() {
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assert.equal(wallet.getMasterKey().network, 'testnet')
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})
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})
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})
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describe('newMasterKey', function(){
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it('resets accounts', function(){
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var wallet = new Wallet()
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var oldAccountZero = wallet.getAccountZero()
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var oldExternalAccount = wallet.getExternalAccount()
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var oldInternalAccount = wallet.getInternalAccount()
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wallet.newMasterKey(seed)
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assertNotEqual(wallet.getAccountZero(), oldAccountZero)
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assertNotEqual(wallet.getExternalAccount(), oldExternalAccount)
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assertNotEqual(wallet.getInternalAccount(), oldInternalAccount)
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})
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it('resets addresses', function(){
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var wallet = new Wallet()
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wallet.generateAddress()
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wallet.generateChangeAddress()
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var oldAddresses = wallet.addresses
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var oldChangeAddresses = wallet.changeAddresses
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assert.notDeepEqual(oldAddresses, [])
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assert.notDeepEqual(oldChangeAddresses, [])
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wallet.newMasterKey(seed)
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assert.deepEqual(wallet.addresses, [])
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assert.deepEqual(wallet.changeAddresses, [])
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})
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})
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describe('generateAddress', function(){
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it('generate receiving addresses', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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var expectedAddresses = [
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"n1GyUANZand9Kw6hGSV9837cCC9FFUQzQa",
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"n2fiWrHqD6GM5GiEqkbWAc6aaZQp3ba93X"
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]
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assert.equal(wallet.generateAddress(), expectedAddresses[0])
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assert.equal(wallet.generateAddress(), expectedAddresses[1])
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assert.deepEqual(wallet.addresses, expectedAddresses)
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})
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})
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describe('generateChangeAddress', function(){
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it('generates change addresses', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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var expectedAddresses = ["mnXiDR4MKsFxcKJEZjx4353oXvo55iuptn"]
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assert.equal(wallet.generateChangeAddress(), expectedAddresses[0])
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assert.deepEqual(wallet.changeAddresses, expectedAddresses)
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})
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})
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describe('getPrivateKey', function(){
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it('returns the private key at the given index of external account', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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assertEqual(wallet.getPrivateKey(0), wallet.getExternalAccount().derive(0).priv)
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assertEqual(wallet.getPrivateKey(1), wallet.getExternalAccount().derive(1).priv)
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})
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})
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describe('getInternalPrivateKey', function(){
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it('returns the private key at the given index of internal account', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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assertEqual(wallet.getInternalPrivateKey(0), wallet.getInternalAccount().derive(0).priv)
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assertEqual(wallet.getInternalPrivateKey(1), wallet.getInternalAccount().derive(1).priv)
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})
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})
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describe('getPrivateKeyForAddress', function(){
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it('returns the private key for the given address', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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wallet.generateChangeAddress()
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wallet.generateAddress()
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wallet.generateAddress()
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assertEqual(wallet.getPrivateKeyForAddress("n2fiWrHqD6GM5GiEqkbWAc6aaZQp3ba93X"),
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wallet.getExternalAccount().derive(1).priv)
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assertEqual(wallet.getPrivateKeyForAddress("mnXiDR4MKsFxcKJEZjx4353oXvo55iuptn"),
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wallet.getInternalAccount().derive(0).priv)
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})
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it('raises an error when address is not found', function(){
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var wallet = new Wallet(seed, {network: 'testnet'})
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assert.throws(function() {
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wallet.getPrivateKeyForAddress("n2fiWrHqD6GM5GiEqkbWAc6aaZQp3ba93X")
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}, Error, 'Unknown address. Make sure the address is from the keychain and has been generated.')
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})
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})
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describe('Unspent Outputs', function(){
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var expectedUtxo, expectedOutputKey;
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beforeEach(function(){
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expectedUtxo = [
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{
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"hash":"6a4062273ac4f9ea4ffca52d9fd102b08f6c32faa0a4d1318e3a7b2e437bb9c7",
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"hashLittleEndian":"c7b97b432e7b3a8e31d1a4a0fa326c8fb002d19f2da5fc4feaf9c43a2762406a",
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"outputIndex": 0,
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"scriptPubKey":"76a91468edf28474ee22f68dfe7e56e76c017c1701b84f88ac",
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"address" : "1AZpKpcfCzKDUeTFBQUL4MokQai3m3HMXv",
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"value": 20000
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}
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]
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expectedOutputKey = expectedUtxo[0].hash + ":" + expectedUtxo[0].outputIndex
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})
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describe('getUnspentOutputs', function(){
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it('parses wallet outputs to the expect format', function(){
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wallet.outputs[expectedOutputKey] = {
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receive: expectedOutputKey,
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scriptPubKey: expectedUtxo[0].scriptPubKey,
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address: expectedUtxo[0].address,
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value: expectedUtxo[0].value
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}
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assert.deepEqual(wallet.getUnspentOutputs(), expectedUtxo)
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})
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})
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describe('setUnspentOutputs', function(){
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var utxo;
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beforeEach(function(){
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utxo = cloneObject(expectedUtxo)
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})
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it('uses hashLittleEndian when hash is not present', function(){
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delete utxo[0]['hash']
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wallet.setUnspentOutputs(utxo)
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verifyOutputs()
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})
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it('uses hash when hashLittleEndian is not present', function(){
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delete utxo[0]['hashLittleEndian']
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wallet.setUnspentOutputs(utxo)
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verifyOutputs()
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})
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it('uses hash when both hash and hashLittleEndian are present', function(){
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wallet.setUnspentOutputs(utxo)
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verifyOutputs()
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})
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describe('required fields', function(){
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it("throws an error when hash and hashLittleEndian are both missing", function(){
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delete utxo[0]['hash']
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delete utxo[0]['hashLittleEndian']
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var errorMessage = 'Invalid unspent output: key hash(or hashLittleEndian) is missing. ' +
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'A valid unspent output must contain outputIndex, scriptPubKey, address, value and hash(or hashLittleEndian)'
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assert.throws(function() {
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wallet.setUnspentOutputs(utxo)
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}, Error, errorMessage)
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});
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['outputIndex', 'scriptPubKey', 'address', 'value'].forEach(function(field){
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it("throws an error when " + field + " is missing", function(){
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delete utxo[0][field]
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var errorMessage = 'Invalid unspent output: key ' + field +
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' is missing. A valid unspent output must contain outputIndex, scriptPubKey, address, value and hash(or hashLittleEndian)'
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assert.throws(function() {
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wallet.setUnspentOutputs(utxo)
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}, Error, errorMessage)
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})
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})
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})
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function verifyOutputs() {
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var output = wallet.outputs[expectedOutputKey]
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assert(output)
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assert.equal(output.value, utxo[0].value)
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assert.equal(output.address, utxo[0].address)
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assert.equal(output.scriptPubKey, utxo[0].scriptPubKey)
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}
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})
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})
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describe('processTx', function(){
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var tx;
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beforeEach(function(){
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tx = Transaction.deserialize(fixtureTx1Hex)
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})
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describe("when tx outs contains an address owned by the wallet, an 'output' gets added to wallet.outputs", function(){
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it("works for receive address", function(){
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var totalOuts = outputCount()
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wallet.addresses = [tx.outs[0].address.toString()]
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wallet.processTx(tx)
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assert.equal(outputCount(), totalOuts + 1)
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verifyOutputAdded(0)
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})
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it("works for change address", function(){
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var totalOuts = outputCount()
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wallet.changeAddresses = [tx.outs[1].address.toString()]
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wallet.processTx(tx)
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assert.equal(outputCount(), totalOuts + 1)
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verifyOutputAdded(1)
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})
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function outputCount(){
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return Object.keys(wallet.outputs).length
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}
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function verifyOutputAdded(index) {
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var txOut = tx.outs[index]
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var key = convert.bytesToHex(tx.getHash()) + ":" + index
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var output = wallet.outputs[key]
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assert.equal(output.receive, key)
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assert.equal(output.value, txOut.value)
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assert.equal(output.address, txOut.address)
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assert.equal(output.scriptPubKey, convert.bytesToHex(txOut.script.buffer))
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}
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})
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describe("when tx ins outpoint contains a known txhash:i, the corresponding 'output' gets updated", function(){
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beforeEach(function(){
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wallet.addresses = [tx.outs[0].address.toString()] // the address fixtureTx2 used as input
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wallet.processTx(tx)
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tx = Transaction.deserialize(fixtureTx2Hex)
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})
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it("does not add to wallet.outputs", function(){
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var outputs = wallet.outputs
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wallet.processTx(tx)
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assert.deepEqual(wallet.outputs, outputs)
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})
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it("sets spend with the transaction hash and input index", function(){
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wallet.processTx(tx)
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var txIn = tx.ins[0]
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var key = txIn.outpoint.hash + ":" + txIn.outpoint.index
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var output = wallet.outputs[key]
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assert.equal(output.spend, convert.bytesToHex(tx.getHash()) + ':' + 0)
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})
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})
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it("does nothing when none of the involved addresses belong to the wallet", function(){
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var outputs = wallet.outputs
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wallet.processTx(tx)
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assert.deepEqual(wallet.outputs, outputs)
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})
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})
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describe('createTx', function(){
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var to, value;
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var address1, address2;
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beforeEach(function(){
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to = '15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3'
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value = 500000
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// generate 2 addresses
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address1 = wallet.generateAddress()
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address2 = wallet.generateAddress()
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// set up 3 utxo
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utxo = [
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{
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"hash": fakeTxHash(1),
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"outputIndex": 0,
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"scriptPubKey": scriptPubKeyFor(address1, 300000),
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"address" : address1,
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"value": 400000 // not enough for value
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},
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{
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"hash": fakeTxHash(2),
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"outputIndex": 1,
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"scriptPubKey": scriptPubKeyFor(address1, 500000),
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"address" : address1,
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"value": 500000 // enough for only value
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},
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{
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"hash": fakeTxHash(3),
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"outputIndex": 0,
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"scriptPubKey": scriptPubKeyFor(address2, 520000),
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"address" : address2,
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"value": 520000 // enough for value and fee
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}
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]
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wallet.setUnspentOutputs(utxo)
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function scriptPubKeyFor(address, value){
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var txOut = new TransactionOut({
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value: value,
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script: Script.createOutputScript(address)
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})
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return txOut.scriptPubKey()
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}
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})
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describe('choosing utxo', function(){
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it('calculates fees', function(){
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var tx = wallet.createTx(to, value)
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assert.equal(tx.ins.length, 1)
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assert.deepEqual(tx.ins[0].outpoint, { hash: fakeTxHash(3), index: 0 })
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})
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it('allows fee to be specified', function(){
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var fee = 30000
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var tx = wallet.createTx(to, value, fee)
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assert.equal(tx.ins.length, 2)
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assert.deepEqual(tx.ins[0].outpoint, { hash: fakeTxHash(3), index: 0 })
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assert.deepEqual(tx.ins[1].outpoint, { hash: fakeTxHash(2), index: 1 })
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})
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})
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describe('transaction outputs', function(){
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it('includes the specified address and amount', function(){
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var tx = wallet.createTx(to, value)
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assert.equal(tx.outs.length, 1)
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var out = tx.outs[0]
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assert.equal(out.address, to)
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assert.equal(out.value, value)
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})
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describe('change', function(){
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it('uses the last change address if there is any', function(){
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var fee = 15000
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wallet.generateChangeAddress()
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wallet.generateChangeAddress()
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var tx = wallet.createTx(to, value, fee)
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assert.equal(tx.outs.length, 2)
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var out = tx.outs[1]
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assert.equal(out.address, wallet.changeAddresses[1])
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assert.equal(out.value, 5000)
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})
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it('generates a change address if there is not any', function(){
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var fee = 15000
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assert.equal(wallet.changeAddresses.length, 0)
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var tx = wallet.createTx(to, value, fee)
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assert.equal(wallet.changeAddresses.length, 1)
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var out = tx.outs[1]
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assert.equal(out.address, wallet.changeAddresses[0])
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assert.equal(out.value, 5000)
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})
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})
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})
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describe('signing', function(){
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afterEach(function(){
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Transaction.prototype.sign.restore()
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})
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it('signes the inputs with respective keys', function(){
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var fee = 30000
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sinon.stub(Transaction.prototype, "sign")
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var tx = wallet.createTx(to, value, fee)
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assert(Transaction.prototype.sign.calledWith(0, wallet.getPrivateKeyForAddress(address2)))
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assert(Transaction.prototype.sign.calledWith(1, wallet.getPrivateKeyForAddress(address1)))
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})
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})
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describe('when value is below dust threshold', function(){
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it('throws an error', function(){
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var value = 5429
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assert.throws(function() {
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wallet.createTx(to, value)
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}, Error, 'Value below dust threshold')
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})
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})
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describe('when there is not enough money', function(){
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it('throws an error', function(){
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var value = 1400001
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assert.throws(function() {
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wallet.createTx(to, value)
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}, Error, 'Not enough money to send funds including transaction fee. Have: 1420000, needed: 1420001')
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})
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})
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function fakeTxHash(i) {
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return "txtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtxtx" + i
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}
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})
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function assertEqual(obj1, obj2){
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assert.equal(obj1.toString(), obj2.toString())
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}
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function assertNotEqual(obj1, obj2){
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assert.notEqual(obj1.toString(), obj2.toString())
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}
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// quick and dirty: does not deal with functions on object
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function cloneObject(obj){
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return JSON.parse(JSON.stringify(obj))
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}
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})
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