77 lines
2.6 KiB
JavaScript
77 lines
2.6 KiB
JavaScript
/* global describe, it */
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var assert = require('assert')
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var bitcoin = require('../../')
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var blockchain = require('./_blockchain')
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describe('bitcoinjs-lib (advanced)', function () {
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it('can sign a Bitcoin message', function () {
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var keyPair = bitcoin.ECPair.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
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var message = 'This is an example of a signed message.'
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var signature = bitcoin.message.sign(keyPair, message)
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assert.strictEqual(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
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})
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it('can verify a Bitcoin message', function () {
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var address = '1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'
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var signature = 'HJLQlDWLyb1Ef8bQKEISzFbDAKctIlaqOpGbrk3YVtRsjmC61lpE5ErkPRUFtDKtx98vHFGUWlFhsh3DiW6N0rE'
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var message = 'This is an example of a signed message.'
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assert(bitcoin.message.verify(address, signature, message))
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})
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it('can create an OP_RETURN transaction', function (done) {
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this.timeout(20000)
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var network = bitcoin.networks.testnet
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var keyPair = bitcoin.ECPair.makeRandom({ network: network })
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var address = keyPair.getAddress()
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blockchain.t.faucet(address, 2e4, function (err) {
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if (err) return done(err)
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blockchain.t.addresses.unspents(address, function (err, unspents) {
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if (err) return done(err)
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// filter small unspents
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unspents = unspents.filter(function (unspent) {
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return unspent.value > 1e4
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})
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// use the oldest unspent
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var unspent = unspents.pop()
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if (!unspent) throw new Error('Faucet didn\'t provide an unspent')
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var tx = new bitcoin.TransactionBuilder(network)
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var data = new Buffer('bitcoinjs-lib')
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var dataScript = bitcoin.script.nullDataOutput(data)
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tx.addInput(unspent.txId, unspent.vout)
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tx.addOutput(dataScript, 1000)
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tx.sign(0, keyPair)
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var txBuilt = tx.build()
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blockchain.t.transactions.propagate(txBuilt.toHex(), function (err) {
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if (err) return done(err)
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// check that the message was propagated
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blockchain.t.transactions.get(txBuilt.getId(), function (err, transaction) {
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if (err) return done(err)
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var actual = bitcoin.Transaction.fromHex(transaction.txHex)
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var dataScript2 = actual.outs[0].script
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var data2 = bitcoin.script.decompile(dataScript2)[1]
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assert.deepEqual(dataScript, dataScript2)
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assert.deepEqual(data, data2)
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done()
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})
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})
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})
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})
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})
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})
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