150 lines
4.1 KiB
JavaScript
150 lines
4.1 KiB
JavaScript
/* global describe, it, beforeEach */
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const assert = require('assert')
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const Block = require('../src/block')
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const fixtures = require('./fixtures/block')
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describe('Block', function () {
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describe('version', function () {
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it('should be interpreted as an int32le', function () {
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const blockHex = 'ffffffff0000000000000000000000000000000000000000000000000000000000000000414141414141414141414141414141414141414141414141414141414141414101000000020000000300000000'
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const block = Block.fromHex(blockHex)
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assert.equal(-1, block.version)
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assert.equal(1, block.timestamp)
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})
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})
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describe('calculateTarget', function () {
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fixtures.targets.forEach(function (f) {
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it('returns ' + f.expected + ' for 0x' + f.bits, function () {
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const bits = parseInt(f.bits, 16)
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assert.equal(Block.calculateTarget(bits).toString('hex'), f.expected)
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})
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})
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})
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describe('fromBuffer/fromHex', function () {
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fixtures.valid.forEach(function (f) {
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it('imports ' + f.description, function () {
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const block = Block.fromHex(f.hex)
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assert.strictEqual(block.version, f.version)
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assert.strictEqual(block.prevHash.toString('hex'), f.prevHash)
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assert.strictEqual(block.merkleRoot.toString('hex'), f.merkleRoot)
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assert.strictEqual(block.timestamp, f.timestamp)
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assert.strictEqual(block.bits, f.bits)
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assert.strictEqual(block.nonce, f.nonce)
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assert.strictEqual(!block.transactions, f.hex.length === 160)
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})
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})
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fixtures.invalid.forEach(function (f) {
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it('throws on ' + f.exception, function () {
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assert.throws(function () {
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Block.fromHex(f.hex)
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}, new RegExp(f.exception))
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})
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})
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})
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describe('toBuffer/toHex', function () {
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fixtures.valid.forEach(function (f) {
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('exports ' + f.description, function () {
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assert.strictEqual(block.toHex(true), f.hex.slice(0, 160))
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assert.strictEqual(block.toHex(), f.hex)
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})
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})
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})
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describe('getHash/getId', function () {
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fixtures.valid.forEach(function (f) {
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('returns ' + f.id + ' for ' + f.description, function () {
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assert.strictEqual(block.getHash().toString('hex'), f.hash)
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assert.strictEqual(block.getId(), f.id)
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})
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})
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})
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describe('getUTCDate', function () {
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fixtures.valid.forEach(function (f) {
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('returns UTC date of ' + f.id, function () {
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const utcDate = block.getUTCDate().getTime()
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assert.strictEqual(utcDate, f.timestamp * 1e3)
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})
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})
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})
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describe('calculateMerkleRoot', function () {
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it('should throw on zero-length transaction array', function () {
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assert.throws(function () {
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Block.calculateMerkleRoot([])
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}, /Cannot compute merkle root for zero transactions/)
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})
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fixtures.valid.forEach(function (f) {
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if (f.hex.length === 160) return
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('returns ' + f.merkleRoot + ' for ' + f.id, function () {
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assert.strictEqual(Block.calculateMerkleRoot(block.transactions).toString('hex'), f.merkleRoot)
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})
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})
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})
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describe('checkMerkleRoot', function () {
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fixtures.valid.forEach(function (f) {
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if (f.hex.length === 160) return
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('returns ' + f.valid + ' for ' + f.id, function () {
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assert.strictEqual(block.checkMerkleRoot(), true)
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})
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})
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})
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describe('checkProofOfWork', function () {
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fixtures.valid.forEach(function (f) {
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let block
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beforeEach(function () {
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block = Block.fromHex(f.hex)
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})
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it('returns ' + f.valid + ' for ' + f.id, function () {
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assert.strictEqual(block.checkProofOfWork(), f.valid)
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})
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})
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})
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})
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