DefinitelyTyped/types/bitcoinjs-lib/bitcoinjs-lib-tests.ts

/// <reference types="node" />

import bigi = require('bigi');
import bitcoin = require('bitcoinjs-lib');

declare const it: any;
declare const describe: any;
declare const assert: any;

describe('bitcoinjs-lib (basic)', () => {
    it('can generate a random bitcoin address', () => {
        // for testing only
        function rng() { return new Buffer('zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz'); }

        // generate random keyPair
        const keyPair = bitcoin.ECPair.makeRandom({ rng });
        const address = keyPair.getAddress();

        assert.strictEqual(address, '1F5VhMHukdnUES9kfXqzPzMeF1GPHKiF64');
    });

    it('can generate an address from a SHA256 hash', () => {
        const hash = bitcoin.crypto.sha256('correct horse battery staple');
        const d = bigi.fromBuffer(hash);

        const keyPair = new bitcoin.ECPair(d);
        const address = keyPair.getAddress();

        assert.strictEqual(address, '1C7zdTfnkzmr13HfA2vNm5SJYRK6nEKyq8');
    });

    it('can generate a random keypair for alternative networks', () => {
        // for testing only
        function rng() { return new Buffer('zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz'); }

        const litecoin = bitcoin.networks.litecoin;

        const keyPair = bitcoin.ECPair.makeRandom({ network: litecoin, rng });
        const wif = keyPair.toWIF();
        const address = keyPair.getAddress();

        assert.strictEqual(address, 'LZJSxZbjqJ2XVEquqfqHg1RQTDdfST5PTn');
        assert.strictEqual(wif, 'T7A4PUSgTDHecBxW1ZiYFrDNRih2o7M8Gf9xpoCgudPF9gDiNvuS');
    });

    it('can import an address via WIF', () => {
        const keyPair = bitcoin.ECPair.fromWIF('Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct');
        const address = keyPair.getAddress();

        assert.strictEqual(address, '19AAjaTUbRjQCMuVczepkoPswiZRhjtg31');
    });

    it('can create a Transaction', () => {
        const keyPair = bitcoin.ECPair.fromWIF('L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy');
        const tx = new bitcoin.TransactionBuilder();

        tx.addInput('aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31', 0);
        tx.addOutput('1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK', 15000);
        tx.sign(0, keyPair);

        // tslint:disable-next-line:max-line-length
        assert.strictEqual(tx.build().toHex(), '0100000001313eb630b128102b60241ca895f1d0ffca2170d5a0990e094f2182c102ab94aa000000006b483045022100aefbcf847900b01dd3e3debe054d3b6d03d715d50aea8525f5ea3396f168a1fb022013d181d05b15b90111808b22ef4f9ebe701caf2ab48db269691fdf4e9048f4f60121029f50f51d63b345039a290c94bffd3180c99ed659ff6ea6b1242bca47eb93b59fffffffff01983a0000000000001976a914ad618cf4333b3b248f9744e8e81db2964d0ae39788ac00000000');
    });
});