bitcoinjs-lib/test/integration/advanced.js

66 lines
2.3 KiB
JavaScript

var assert = require('assert')
var bitcoin = require('../../')
var blockchain = new (require('cb-helloblock'))('testnet')
describe('bitcoinjs-lib (advanced)', function() {
it('can sign a Bitcoin message', function() {
var key = bitcoin.ECKey.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
var message = 'This is an example of a signed message.'
var signature = bitcoin.Message.sign(key, message)
assert.equal(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
})
it('can verify a Bitcoin message', function() {
var address = '1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'
var signature = 'HJLQlDWLyb1Ef8bQKEISzFbDAKctIlaqOpGbrk3YVtRsjmC61lpE5ErkPRUFtDKtx98vHFGUWlFhsh3DiW6N0rE'
var message = 'This is an example of a signed message.'
assert(bitcoin.Message.verify(address, signature, message))
})
it('can create an OP_RETURN transaction', function(done) {
this.timeout(20000)
var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")
var address = key.pub.getAddress(bitcoin.networks.testnet).toString()
blockchain.addresses.__faucetWithdraw(address, 2e4, function(err) {
if (err) return done(err)
blockchain.addresses.unspents(address, function(err, unspents) {
if (err) return done(err)
var tx = new bitcoin.TransactionBuilder()
var data = new Buffer('bitcoinjs-lib')
var dataScript = bitcoin.scripts.nullDataOutput(data)
var unspent = unspents.pop()
tx.addInput(unspent.txId, unspent.vout)
tx.addOutput(dataScript, 1000)
tx.sign(0, key)
var txBuilt = tx.build()
blockchain.transactions.propagate(txBuilt.toHex(), function(err) {
if (err) return done(err)
// check that the message was propagated
blockchain.transactions.get(txBuilt.getId(), function(err, transaction) {
if (err) return done(err)
var actual = bitcoin.Transaction.fromHex(transaction.txHex)
var dataScript2 = actual.outs[0].script
var data2 = dataScript2.chunks[1]
assert.deepEqual(dataScript, dataScript2)
assert.deepEqual(data, data2)
done()
})
})
})
})
})
})