var assert = require('assert') var scripts = require('../src/scripts') var Address = require('../src/address') var ECKey = require('../src/eckey') var Transaction = require('../src/transaction') var Script = require('../src/script') var fixtures = require('./fixtures/transaction') describe('Transaction', function() { function fromRaw(raw) { var tx = new Transaction() tx.version = raw.version tx.locktime = raw.locktime raw.ins.forEach(function(txIn) { var txHash = new Buffer(txIn.hash, 'hex') var script = txIn.script ? Script.fromASM(txIn.script) : undefined tx.addInput(txHash, txIn.index, txIn.sequence, script) }) raw.outs.forEach(function(txOut) { tx.addOutput(Script.fromASM(txOut.script), txOut.value) }) return tx } describe('fromBuffer/fromHex', function() { fixtures.valid.forEach(function(f) { it('imports ' + f.id + ' correctly', function() { var actual = Transaction.fromHex(f.hex) assert.deepEqual(actual.toHex(), f.hex) }) }) fixtures.invalid.fromBuffer.forEach(function(f) { it('throws on ' + f.exception, function() { assert.throws(function() { Transaction.fromHex(f.hex) }, new RegExp(f.exception)) }) }) }) describe('toBuffer/toHex', function() { fixtures.valid.forEach(function(f) { it('exports ' + f.id + ' correctly', function() { var actual = fromRaw(f.raw) assert.deepEqual(actual.toHex(), f.hex) }) }) }) describe('addInput', function() { // FIXME: not as pretty as could be // Probably a bit representative of the API var prevTxHash, prevTxId, prevTx beforeEach(function() { var f = fixtures.valid[0] prevTx = Transaction.fromHex(f.hex) prevTxHash = prevTx.getHash() prevTxId = prevTx.getId() }) it('accepts a transaction id', function() { var tx = new Transaction() tx.addInput(prevTxId, 0) assert.deepEqual(tx.ins[0].hash, prevTxHash) }) it('accepts a transaction hash', function() { var tx = new Transaction() tx.addInput(prevTxHash, 0) assert.deepEqual(tx.ins[0].hash, prevTxHash) }) it('accepts a Transaction object', function() { var tx = new Transaction() tx.addInput(prevTx, 0) assert.deepEqual(tx.ins[0].hash, prevTxHash) }) it('returns an index', function() { var tx = new Transaction() assert.equal(tx.addInput(prevTxHash, 0), 0) assert.equal(tx.addInput(prevTxHash, 0), 1) }) it('defaults to DEFAULT_SEQUENCE', function() { var tx = new Transaction() tx.addInput(prevTxHash, 0) assert.equal(tx.ins[0].sequence, Transaction.DEFAULT_SEQUENCE) }) it('defaults to empty script', function() { var tx = new Transaction() tx.addInput(prevTxHash, 0) assert.equal(tx.ins[0].script, Script.EMPTY) }) fixtures.valid.forEach(function(f) { it('should add the inputs for ' + f.id + ' correctly', function() { var tx = new Transaction() f.raw.ins.forEach(function(txIn, i) { var txHash = new Buffer(txIn.hash, 'hex') var script = txIn.script ? Script.fromASM(txIn.script) : undefined var j = tx.addInput(txHash, txIn.index, txIn.sequence, script) var sequence = txIn.sequence if (sequence === undefined || sequence === null ) { sequence = Transaction.DEFAULT_SEQUENCE } assert.equal(i, j) assert.equal(tx.ins[i].hash.toString('hex'), txIn.hash) assert.equal(tx.ins[i].index, txIn.index) assert.equal(tx.ins[i].sequence, sequence) assert.deepEqual(tx.ins[i].script, script || Script.EMPTY) }) }) }) fixtures.invalid.addInput.forEach(function(f) { it('throws on ' + f.exception, function() { var tx = new Transaction() var hash = new Buffer(f.hash, 'hex') assert.throws(function() { tx.addInput(hash, f.index) }, new RegExp(f.exception)) }) }) }) describe('addOutput', function() { // FIXME: not as pretty as could be // Probably a bit representative of the API var destAddressB58, destAddress, destScript beforeEach(function() { destAddressB58 = '15mMHKL96tWAUtqF3tbVf99Z8arcmnJrr3' destAddress = Address.fromBase58Check(destAddressB58) destScript = destAddress.toOutputScript() }) it('accepts an address string', function() { var tx = new Transaction() tx.addOutput(destAddressB58, 40000) assert.deepEqual(tx.outs[0].script, destScript) assert.equal(tx.outs[0].value, 40000) }) it('accepts an Address', function() { var tx = new Transaction() tx.addOutput(destAddress, 40000) assert.deepEqual(tx.outs[0].script, destScript) assert.equal(tx.outs[0].value, 40000) }) it('accepts a scriptPubKey', function() { var tx = new Transaction() tx.addOutput(destScript, 40000) assert.deepEqual(tx.outs[0].script, destScript) assert.equal(tx.outs[0].value, 40000) }) it('returns an index', function() { var tx = new Transaction() assert.equal(tx.addOutput(destScript, 40000), 0) assert.equal(tx.addOutput(destScript, 40000), 1) }) fixtures.valid.forEach(function(f) { it('should add the outputs for ' + f.id + ' correctly', function() { var tx = new Transaction() f.raw.outs.forEach(function(txOut, i) { var scriptPubKey = Script.fromASM(txOut.script) var j = tx.addOutput(scriptPubKey, txOut.value) assert.equal(i, j) assert.equal(tx.outs[i].script, scriptPubKey) assert.equal(tx.outs[i].value, txOut.value) }) }) }) }) describe('clone', function() { fixtures.valid.forEach(function(f) { var expected = Transaction.fromHex(f.hex) var actual = expected.clone() it('should have value equality', function() { assert.deepEqual(actual, expected) }) it('should not have reference equality', function() { assert.notEqual(actual, expected) }) }) }) describe('getId', function() { fixtures.valid.forEach(function(f) { it('should return the id for ' + f.id, function() { var tx = Transaction.fromHex(f.hex) var actual = tx.getId() assert.equal(actual, f.id) }) }) }) describe('getHash', function() { fixtures.valid.forEach(function(f) { it('should return the hash for ' + f.id, function() { var tx = Transaction.fromHex(f.hex) var actual = tx.getHash().toString('hex') assert.equal(actual, f.hash) }) }) }) // TODO: // hashForSignature: [Function], // FIXME: remove in 2.x.y describe('signInput/validateInput', function() { it('works for multi-sig redeem script', function() { var tx = new Transaction() tx.addInput('d6f72aab8ff86ff6289842a0424319bf2ddba85dc7c52757912297f948286389', 0) tx.addOutput('mrCDrCybB6J1vRfbwM5hemdJz73FwDBC8r', 1) var privKeys = [ '5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf', '5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAvUcVfH' ].map(function(wif) { return ECKey.fromWIF(wif) }) var pubKeys = privKeys.map(function(eck) { return eck.pub }) var redeemScript = scripts.multisigOutput(2, pubKeys) var signatures = privKeys.map(function(privKey) { return tx.signInput(0, redeemScript, privKey) }) var redeemScriptSig = scripts.multisigInput(signatures) var scriptSig = scripts.scriptHashInput(redeemScriptSig, redeemScript) tx.setInputScript(0, scriptSig) signatures.forEach(function(sig, i){ assert(tx.validateInput(0, redeemScript, privKeys[i].pub, sig)) }) var expected = '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' assert.equal(tx.toHex(), expected) }) }) })