86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
var assert = require('assert')
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var BufferExt = require('../').BufferExt
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var fixtures = require('./fixtures/buffer.js')
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describe('Buffer Extensions', function() {
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describe('readUInt64LE', function() {
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it('matches test vectors', function() {
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fixtures.valid.forEach(function(f) {
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var buffer = new Buffer(f.hex64, 'hex')
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var number = BufferExt.readUInt64LE(buffer, 0)
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assert.equal(number, f.dec)
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})
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})
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})
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describe('readVarInt', function() {
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it('matches test vectors', function() {
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fixtures.valid.forEach(function(f) {
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var buffer = new Buffer(f.hexVI, 'hex')
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var d = BufferExt.readVarInt(buffer, 0)
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assert.equal(d.number, f.dec)
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assert.equal(d.size, buffer.length)
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})
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})
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})
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describe('varIntSize', function() {
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it('matches test vectors', function() {
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fixtures.valid.forEach(function(f) {
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var number = parseInt(f.dec)
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var size = BufferExt.varIntSize(number)
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assert.equal(size, f.hexVI.length / 2)
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})
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})
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})
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describe('writeUInt64LE', function() {
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it('matches test vectors', function() {
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fixtures.valid.forEach(function(f) {
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var buffer = new Buffer(8)
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buffer.fill(0)
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BufferExt.writeUInt64LE(buffer, f.dec, 0)
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assert.equal(buffer.toString('hex'), f.hex64)
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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.description, function() {
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assert.throws(function() {
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var buffer = new Buffer(8)
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buffer.fill(0)
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BufferExt.writeUInt64LE(buffer, f.dec, 0)
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})
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})
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})
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})
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describe('writeVarInt', function() {
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it('matches test vectors', function() {
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fixtures.valid.forEach(function(f) {
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var buffer = new Buffer(9)
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buffer.fill(0)
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var n = BufferExt.writeVarInt(buffer, f.dec, 0)
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assert.equal(buffer.slice(0, n).toString('hex'), f.hexVI)
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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.description, function() {
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assert.throws(function() {
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var buffer = new Buffer(9)
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buffer.fill(0)
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BufferExt.writeVarInt(buffer, f.dec, 0)
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})
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})
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})
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})
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})
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