140 lines
4.2 KiB
JavaScript
140 lines
4.2 KiB
JavaScript
'use strict';
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var chai = require('chai');
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var should = chai.should();
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var sinon = require('sinon');
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var async = require('async');
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var proxyquire = require('proxyquire');
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var memdown = require('memdown');
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var bitcoindjs = require('../');
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var DB = bitcoindjs.DB;
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var Chain = bitcoindjs.Chain;
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var Block = bitcoindjs.Block;
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var chainData = require('./data/testnet-blocks.json');
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describe('Bitcoin Chain', function() {
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describe('@constructor', function() {
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it('can create a new instance with and without `new`', function() {
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var chain = new Chain();
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chain = Chain();
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});
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});
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describe('#start', function() {
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it('should call the callback when base chain is initialized', function(done) {
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var chain = new Chain();
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chain.node = {};
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chain.node.bitcoind = {};
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chain.node.bitcoind.genesisBuffer = new Buffer('0100000043497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000bac8b0fa927c0ac8234287e33c5f74d38d354820e24756ad709d7038fc5f31f020e7494dffff001d03e4b6720101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0e0420e7494d017f062f503253482fffffffff0100f2052a010000002321021aeaf2f8638a129a3156fbe7e5ef635226b0bafd495ff03afe2c843d7e3a4b51ac00000000', 'hex');
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chain.initialize = function() {
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chain.emit('initialized');
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};
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chain.start(done);
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});
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});
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describe('#stop', function() {
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it('should call the callback', function(done) {
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var chain = new Chain();
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chain.stop(done);
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});
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});
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describe('#_writeBlock', function() {
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it('should update hashes and call putBlock', function(done) {
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var chain = new Chain();
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chain.db = {
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putBlock: sinon.stub().callsArg(1)
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};
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chain._writeBlock({hash: 'hash', prevHash: 'prevhash'}, function(err) {
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should.not.exist(err);
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chain.db.putBlock.callCount.should.equal(1);
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chain.cache.hashes.hash.should.equal('prevhash');
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done();
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});
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});
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});
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describe('#_validateBlock', function() {
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it('should call the callback', function(done) {
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var chain = new Chain();
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chain._validateBlock('block', function(err) {
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should.not.exist(err);
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done();
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});
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});
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});
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describe('#buildGenesisBlock', function() {
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it('can handle no options', function() {
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var db = {
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buildGenesisData: sinon.stub().returns({})
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};
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var chain = new Chain({db: db});
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var block = chain.buildGenesisBlock();
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should.exist(block);
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block.should.be.instanceof(Block);
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db.buildGenesisData.calledOnce.should.equal(true);
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});
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it('set timestamp, nonce, bits, merkleRoot and data of the genesis', function() {
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var db = {
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buildGenesisData: sinon.stub().returns({
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merkleRoot: 'merkleRoot',
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buffer: new Buffer('abcdef', 'hex')
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})
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};
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var chain = new Chain({db: db});
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var timestamp = '2015-03-20T14:46:01.118Z';
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var block = chain.buildGenesisBlock({
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timestamp: timestamp,
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nonce: 1,
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bits: 520617984
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});
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should.exist(block);
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block.should.be.instanceof(Block);
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block.timestamp.toISOString().should.equal(timestamp);
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block.nonce.should.equal(1);
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block.bits.should.equal(520617984);
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block.merkleRoot.should.equal('merkleRoot');
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block.data.should.deep.equal(new Buffer('abcdef', 'hex'));
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db.buildGenesisData.calledOnce.should.equal(true);
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});
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});
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describe('#getWeight', function() {
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var work = '000000000000000000000000000000000000000000005a7b3c42ea8b844374e9';
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var chain = new Chain();
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chain.db = {
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bitcoind: {
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getBlockIndex: sinon.stub().returns({
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chainWork: work
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})
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}
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};
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it('should give the weight as a BN', function(done) {
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chain.getWeight('hash', function(err, weight) {
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should.not.exist(err);
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weight.toString(16, 64).should.equal(work);
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done();
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});
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});
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it('should give an error if the weight is undefined', function(done) {
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chain.db.bitcoind.getBlockIndex = sinon.stub().returns(undefined);
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chain.getWeight('hash2', function(err, weight) {
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should.exist(err);
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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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