test-bitcoin.js

const fs        = require('fs');
const Bitcoin   = require('../');


const bitcoin = new Bitcoin('testnet');
const opReturn = '12345678901234567890123456789012345678901234567890123456789012345678901234567890';
const bin = new Buffer(8);
bin.writeDoubleBE(Math.random());


describe('Bitcoin', function () {
    describe('#register(data)', function () {
        function testRegister(data, done) {
            bitcoin.register(data)
                .then(txId => {
                    if (typeof txId !== 'string') throw `${txId} is not a string`;
                    if (!/^[a-fA-F0-9]{64}$/.test(txId)) throw `${txId} is not a valid transaction id`;
                    done();
                })
                .catch(done);
        }

        it('should return the transaction id', function (done) {
            testRegister('', done);
        });

        it('should return the transaction id', function (done) {
            testRegister(opReturn, done);
        });

        it('should return the transaction id', function (done) {
            testRegister(bin, done);
        });

        it('should throw an error', function (done) {
            bitcoin.register(opReturn + opReturn)
                .then(txId => done('returned'))
                .catch(() => done());
        });
    });

    describe('#verify(txId)', function () {
        function testVerify(data, done) {
            bitcoin.register(data)
                .then(bitcoin.verify.bind(bitcoin))
                .then(tx => {
                    if (typeof tx.data !== 'object') throw `data ${tx.data} is not an object`;
                    if (tx.data.toString() !== data.toString()) throw `data ${tx.data} is not equal to ${data}`;
                    if (tx.time <= 0) throw `time ${time} is not greater than 0`;
                    if (tx.confirmations < 0) throw `confirmations ${confirmations} is not equal to or greater than 0`;
                    done();
                })
                .catch(done);
        }

        it('should return the transaction data', function (done) {
            testVerify(opReturn, done);
        });

        it('should return the transaction data', function (done) {
            testVerify(bin, done);
        });
    });
});