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bufferutils: add PUSHDATA implementation

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This commit is contained in:
Daniel Cousens 2014-05-28 19:34:15 +10:00
parent 36a1d579f8
commit d18f2dba00
3 changed files with 157 additions and 22 deletions

70
test/bufferutils.js
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@ -4,6 +4,32 @@ var bufferutils = require('../src/bufferutils')
var fixtures = require('./fixtures/buffer.json')
describe('bufferutils', function() {
describe('pushDataSize', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f) {
if (!f.hexPD) return
var size = bufferutils.pushDataSize(f.dec)
assert.equal(size, f.hexPD.length / 2)
})
})
})
describe('readPushDataInt', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f) {
if (!f.hexPD) return
var buffer = new Buffer(f.hexPD, 'hex')
var d = bufferutils.readPushDataInt(buffer, 0)
assert.equal(d.number, f.dec)
assert.equal(d.size, buffer.length)
})
})
})
describe('readUInt64LE', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f) {
@ -30,14 +56,38 @@ describe('bufferutils', function() {
describe('varIntSize', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f) {
var number = parseInt(f.dec)
var size = bufferutils.varIntSize(number)
var size = bufferutils.varIntSize(f.dec)
assert.equal(size, f.hexVI.length / 2)
})
})
})
describe('writePushDataInt', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f, i) {
if (!f.hexPD) return
var buffer = new Buffer(5)
buffer.fill(0)
var n = bufferutils.writePushDataInt(buffer, f.dec, 0)
assert.equal(buffer.slice(0, n).toString('hex'), f.hexPD)
})
})
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
var buffer = new Buffer(5)
buffer.fill(0)
assert.throws(function() {
bufferutils.writePushDataInt(buffer, f.dec, 0)
}, /value must be < 2\^53/)
})
})
})
describe('writeUInt64LE', function() {
it('matches test vectors', function() {
fixtures.valid.forEach(function(f) {
@ -51,12 +101,12 @@ describe('bufferutils', function() {
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
assert.throws(function() {
var buffer = new Buffer(8)
buffer.fill(0)
var buffer = new Buffer(8)
buffer.fill(0)
assert.throws(function() {
bufferutils.writeUInt64LE(buffer, f.dec, 0)
})
}, /value must be < 2\^53/)
})
})
})
@ -74,12 +124,12 @@ describe('bufferutils', function() {
fixtures.invalid.forEach(function(f) {
it('throws on ' + f.description, function() {
assert.throws(function() {
var buffer = new Buffer(9)
buffer.fill(0)
var buffer = new Buffer(9)
buffer.fill(0)
assert.throws(function() {
bufferutils.writeVarInt(buffer, f.dec, 0)
})
}, /value must be < 2\^53/)
})
})
})