mirror of
https://github.com/JasonYANG170/IOTConnect-Web.git
synced 2024-11-23 20:26:28 +00:00
949 lines
23 KiB
JavaScript
949 lines
23 KiB
JavaScript
// @ts-check
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'use strict'
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const tape = require('tape')
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const crypto = require('crypto')
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const fs = require('fs')
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const path = require('path')
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const os = require('os')
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const BufferListStream = require('../')
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const { Buffer } = require('buffer')
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/**
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* This typedef allows us to add _bufs to the API without declaring it publicly on types.
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* @typedef { BufferListStream & { _bufs?: Buffer[] }} BufferListStreamWithPrivate
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*/
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/**
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* Just for typechecking in js
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* @type { NodeJS.Process & { browser?: boolean }}
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*/
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const process = globalThis.process
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/** @type {BufferEncoding[]} */
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const encodings = ['ascii', 'utf8', 'utf-8', 'hex', 'binary', 'base64']
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if (process.browser) {
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encodings.push(
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'ucs2',
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'ucs-2',
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'utf16le',
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/**
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* This alias is not in typescript typings for BufferEncoding. Still have to fix
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* @see https://nodejs.org/api/buffer.html#buffers-and-character-encodings
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*/
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// @ts-ignore
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'utf-16le'
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)
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}
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require('./indexOf')
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require('./isBufferList')
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require('./convert')
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tape('single bytes from single buffer', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abcd'))
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t.equal(bl.length, 4)
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t.equal(bl.get(-1), undefined)
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t.equal(bl.get(0), 97)
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t.equal(bl.get(1), 98)
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t.equal(bl.get(2), 99)
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t.equal(bl.get(3), 100)
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t.equal(bl.get(4), undefined)
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t.end()
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})
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tape('single bytes from multiple buffers', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abcd'))
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bl.append(Buffer.from('efg'))
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bl.append(Buffer.from('hi'))
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bl.append(Buffer.from('j'))
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t.equal(bl.length, 10)
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t.equal(bl.get(0), 97)
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t.equal(bl.get(1), 98)
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t.equal(bl.get(2), 99)
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t.equal(bl.get(3), 100)
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t.equal(bl.get(4), 101)
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t.equal(bl.get(5), 102)
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t.equal(bl.get(6), 103)
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t.equal(bl.get(7), 104)
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t.equal(bl.get(8), 105)
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t.equal(bl.get(9), 106)
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t.end()
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})
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tape('multi bytes from single buffer', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abcd'))
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t.equal(bl.length, 4)
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t.equal(bl.slice(0, 4).toString('ascii'), 'abcd')
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t.equal(bl.slice(0, 3).toString('ascii'), 'abc')
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t.equal(bl.slice(1, 4).toString('ascii'), 'bcd')
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t.equal(bl.slice(-4, -1).toString('ascii'), 'abc')
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t.end()
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})
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tape('multi bytes from single buffer (negative indexes)', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('buffer'))
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t.equal(bl.length, 6)
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t.equal(bl.slice(-6, -1).toString('ascii'), 'buffe')
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t.equal(bl.slice(-6, -2).toString('ascii'), 'buff')
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t.equal(bl.slice(-5, -2).toString('ascii'), 'uff')
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t.end()
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})
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tape('multiple bytes from multiple buffers', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abcd'))
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bl.append(Buffer.from('efg'))
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bl.append(Buffer.from('hi'))
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bl.append(Buffer.from('j'))
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t.equal(bl.length, 10)
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t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij')
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t.equal(bl.slice(3, 10).toString('ascii'), 'defghij')
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t.equal(bl.slice(3, 6).toString('ascii'), 'def')
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t.equal(bl.slice(3, 8).toString('ascii'), 'defgh')
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t.equal(bl.slice(5, 10).toString('ascii'), 'fghij')
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t.equal(bl.slice(-7, -4).toString('ascii'), 'def')
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t.end()
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})
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tape('multiple bytes from multiple buffer lists', function (t) {
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const bl = new BufferListStream()
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bl.append(new BufferListStream([Buffer.from('abcd'), Buffer.from('efg')]))
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bl.append(new BufferListStream([Buffer.from('hi'), Buffer.from('j')]))
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t.equal(bl.length, 10)
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t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij')
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t.equal(bl.slice(3, 10).toString('ascii'), 'defghij')
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t.equal(bl.slice(3, 6).toString('ascii'), 'def')
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t.equal(bl.slice(3, 8).toString('ascii'), 'defgh')
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t.equal(bl.slice(5, 10).toString('ascii'), 'fghij')
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t.end()
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})
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// same data as previous test, just using nested constructors
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tape('multiple bytes from crazy nested buffer lists', function (t) {
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const bl = new BufferListStream()
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bl.append(
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new BufferListStream([
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new BufferListStream([
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new BufferListStream(Buffer.from('abc')),
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Buffer.from('d'),
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new BufferListStream(Buffer.from('efg'))
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]),
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new BufferListStream([Buffer.from('hi')]),
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new BufferListStream(Buffer.from('j'))
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])
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)
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t.equal(bl.length, 10)
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t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij')
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t.equal(bl.slice(3, 10).toString('ascii'), 'defghij')
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t.equal(bl.slice(3, 6).toString('ascii'), 'def')
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t.equal(bl.slice(3, 8).toString('ascii'), 'defgh')
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t.equal(bl.slice(5, 10).toString('ascii'), 'fghij')
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t.end()
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})
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tape('append accepts arrays of Buffers', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abc'))
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bl.append([Buffer.from('def')])
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bl.append([Buffer.from('ghi'), Buffer.from('jkl')])
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bl.append([Buffer.from('mnop'), Buffer.from('qrstu'), Buffer.from('vwxyz')])
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t.equal(bl.length, 26)
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t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz')
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t.end()
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})
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tape('append accepts arrays of Uint8Arrays', function (t) {
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const bl = new BufferListStream()
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bl.append(new Uint8Array([97, 98, 99]))
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bl.append([Uint8Array.from([100, 101, 102])])
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bl.append([new Uint8Array([103, 104, 105]), new Uint8Array([106, 107, 108])])
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bl.append([new Uint8Array([109, 110, 111, 112]), new Uint8Array([113, 114, 115, 116, 117]), new Uint8Array([118, 119, 120, 121, 122])])
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t.equal(bl.length, 26)
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t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz')
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t.end()
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})
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tape('append accepts arrays of BufferLists', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abc'))
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bl.append([new BufferListStream('def')])
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bl.append(
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new BufferListStream([Buffer.from('ghi'), new BufferListStream('jkl')])
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)
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bl.append([
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Buffer.from('mnop'),
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new BufferListStream([Buffer.from('qrstu'), Buffer.from('vwxyz')])
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])
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t.equal(bl.length, 26)
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t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz')
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t.end()
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})
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tape('append chainable', function (t) {
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const bl = new BufferListStream()
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t.ok(bl.append(Buffer.from('abcd')) === bl)
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t.ok(bl.append([Buffer.from('abcd')]) === bl)
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t.ok(bl.append(new BufferListStream(Buffer.from('abcd'))) === bl)
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t.ok(bl.append([new BufferListStream(Buffer.from('abcd'))]) === bl)
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t.end()
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})
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tape('append chainable (test results)', function (t) {
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const bl = new BufferListStream('abc')
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.append([new BufferListStream('def')])
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.append(
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new BufferListStream([Buffer.from('ghi'), new BufferListStream('jkl')])
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)
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.append([
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Buffer.from('mnop'),
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new BufferListStream([Buffer.from('qrstu'), Buffer.from('vwxyz')])
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])
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t.equal(bl.length, 26)
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t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz')
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t.end()
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})
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tape('consuming from multiple buffers', function (t) {
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const bl = new BufferListStream()
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bl.append(Buffer.from('abcd'))
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bl.append(Buffer.from('efg'))
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bl.append(Buffer.from('hi'))
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bl.append(Buffer.from('j'))
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t.equal(bl.length, 10)
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t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij')
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bl.consume(3)
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t.equal(bl.length, 7)
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t.equal(bl.slice(0, 7).toString('ascii'), 'defghij')
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bl.consume(2)
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t.equal(bl.length, 5)
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t.equal(bl.slice(0, 5).toString('ascii'), 'fghij')
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bl.consume(1)
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t.equal(bl.length, 4)
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t.equal(bl.slice(0, 4).toString('ascii'), 'ghij')
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bl.consume(1)
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t.equal(bl.length, 3)
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t.equal(bl.slice(0, 3).toString('ascii'), 'hij')
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bl.consume(2)
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t.equal(bl.length, 1)
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t.equal(bl.slice(0, 1).toString('ascii'), 'j')
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t.end()
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})
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tape('complete consumption', function (t) {
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/** @type {BufferListStreamWithPrivate} */
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const bl = new BufferListStream()
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bl.append(Buffer.from('a'))
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bl.append(Buffer.from('b'))
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bl.consume(2)
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t.equal(bl.length, 0)
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t.equal(bl._bufs.length, 0)
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t.end()
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})
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tape('test readUInt8 / readInt8', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(3)
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const bl = new BufferListStream()
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buf1[0] = 0x1
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buf2[1] = 0x3
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buf2[2] = 0x4
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buf3[0] = 0x23
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buf3[1] = 0x42
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bl.append(buf1)
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bl.append(buf2)
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bl.append(buf3)
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t.equal(bl.readUInt8(), 0x1)
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t.equal(bl.readUInt8(2), 0x3)
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t.equal(bl.readInt8(2), 0x3)
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t.equal(bl.readUInt8(3), 0x4)
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t.equal(bl.readInt8(3), 0x4)
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t.equal(bl.readUInt8(4), 0x23)
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t.equal(bl.readInt8(4), 0x23)
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t.equal(bl.readUInt8(5), 0x42)
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t.equal(bl.readInt8(5), 0x42)
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t.end()
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})
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tape('test readUInt16LE / readUInt16BE / readInt16LE / readInt16BE', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(3)
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const bl = new BufferListStream()
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buf1[0] = 0x1
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buf2[1] = 0x3
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buf2[2] = 0x4
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buf3[0] = 0x23
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buf3[1] = 0x42
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bl.append(buf1)
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bl.append(buf2)
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bl.append(buf3)
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t.equal(bl.readUInt16BE(), 0x0100)
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t.equal(bl.readUInt16LE(), 0x0001)
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t.equal(bl.readUInt16BE(2), 0x0304)
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t.equal(bl.readUInt16LE(2), 0x0403)
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t.equal(bl.readInt16BE(2), 0x0304)
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t.equal(bl.readInt16LE(2), 0x0403)
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t.equal(bl.readUInt16BE(3), 0x0423)
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t.equal(bl.readUInt16LE(3), 0x2304)
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t.equal(bl.readInt16BE(3), 0x0423)
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t.equal(bl.readInt16LE(3), 0x2304)
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t.equal(bl.readUInt16BE(4), 0x2342)
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t.equal(bl.readUInt16LE(4), 0x4223)
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t.equal(bl.readInt16BE(4), 0x2342)
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t.equal(bl.readInt16LE(4), 0x4223)
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t.end()
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})
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tape('test readUInt32LE / readUInt32BE / readInt32LE / readInt32BE', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(3)
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const bl = new BufferListStream()
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buf1[0] = 0x1
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buf2[1] = 0x3
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buf2[2] = 0x4
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buf3[0] = 0x23
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buf3[1] = 0x42
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bl.append(buf1)
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bl.append(buf2)
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bl.append(buf3)
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t.equal(bl.readUInt32BE(), 0x01000304)
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t.equal(bl.readUInt32LE(), 0x04030001)
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t.equal(bl.readUInt32BE(2), 0x03042342)
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t.equal(bl.readUInt32LE(2), 0x42230403)
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t.equal(bl.readInt32BE(2), 0x03042342)
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t.equal(bl.readInt32LE(2), 0x42230403)
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t.end()
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})
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tape('test readBigUInt64LE / readBigUInt64BE / readBigInt64LE / readBigInt64BE', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(2)
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const buf4 = Buffer.alloc(5)
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const bl = new BufferListStream()
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buf1[0] = 0x05
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buf2[0] = 0x07
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buf2[1] = 0x03
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buf2[2] = 0x04
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buf3[0] = 0x23
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buf3[1] = 0x42
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buf4[0] = 0x00
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buf4[1] = 0x01
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buf4[2] = 0x02
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buf4[3] = 0x03
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buf4[4] = 0x04
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bl.append(buf1)
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bl.append(buf2)
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bl.append(buf3)
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bl.append(buf4)
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t.equal(bl.readBigUInt64BE(2), 0x0304234200010203n)
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t.equal(bl.readBigUInt64LE(2), 0x0302010042230403n)
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t.equal(bl.readBigInt64BE(2), 0x0304234200010203n)
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t.equal(bl.readBigInt64LE(2), 0x0302010042230403n)
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t.end()
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})
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tape('test readUIntLE / readUIntBE / readIntLE / readIntBE', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(3)
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const bl = new BufferListStream()
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buf2[0] = 0x2
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buf2[1] = 0x3
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buf2[2] = 0x4
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buf3[0] = 0x23
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buf3[1] = 0x42
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buf3[2] = 0x61
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bl.append(buf1)
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bl.append(buf2)
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bl.append(buf3)
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t.equal(bl.readUIntBE(1, 1), 0x02)
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t.equal(bl.readUIntBE(1, 2), 0x0203)
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t.equal(bl.readUIntBE(1, 3), 0x020304)
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t.equal(bl.readUIntBE(1, 4), 0x02030423)
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t.equal(bl.readUIntBE(1, 5), 0x0203042342)
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t.equal(bl.readUIntBE(1, 6), 0x020304234261)
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t.equal(bl.readUIntLE(1, 1), 0x02)
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t.equal(bl.readUIntLE(1, 2), 0x0302)
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t.equal(bl.readUIntLE(1, 3), 0x040302)
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t.equal(bl.readUIntLE(1, 4), 0x23040302)
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t.equal(bl.readUIntLE(1, 5), 0x4223040302)
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t.equal(bl.readUIntLE(1, 6), 0x614223040302)
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t.equal(bl.readIntBE(1, 1), 0x02)
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t.equal(bl.readIntBE(1, 2), 0x0203)
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t.equal(bl.readIntBE(1, 3), 0x020304)
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t.equal(bl.readIntBE(1, 4), 0x02030423)
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t.equal(bl.readIntBE(1, 5), 0x0203042342)
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t.equal(bl.readIntBE(1, 6), 0x020304234261)
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t.equal(bl.readIntLE(1, 1), 0x02)
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t.equal(bl.readIntLE(1, 2), 0x0302)
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t.equal(bl.readIntLE(1, 3), 0x040302)
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t.equal(bl.readIntLE(1, 4), 0x23040302)
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t.equal(bl.readIntLE(1, 5), 0x4223040302)
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t.equal(bl.readIntLE(1, 6), 0x614223040302)
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t.end()
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})
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tape('test readFloatLE / readFloatBE', function (t) {
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const buf1 = Buffer.alloc(1)
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const buf2 = Buffer.alloc(3)
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const buf3 = Buffer.alloc(3)
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const bl = new BufferListStream()
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buf1[0] = 0x01
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buf2[1] = 0x00
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buf2[2] = 0x00
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buf3[0] = 0x80
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buf3[1] = 0x3f
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bl.append(buf1)
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bl.append(buf2)
|
|
bl.append(buf3)
|
|
|
|
const canonical = Buffer.concat([buf1, buf2, buf3])
|
|
t.equal(bl.readFloatLE(), canonical.readFloatLE())
|
|
t.equal(bl.readFloatBE(), canonical.readFloatBE())
|
|
t.equal(bl.readFloatLE(2), canonical.readFloatLE(2))
|
|
t.equal(bl.readFloatBE(2), canonical.readFloatBE(2))
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('test readDoubleLE / readDoubleBE', function (t) {
|
|
const buf1 = Buffer.alloc(1)
|
|
const buf2 = Buffer.alloc(3)
|
|
const buf3 = Buffer.alloc(10)
|
|
const bl = new BufferListStream()
|
|
|
|
buf1[0] = 0x01
|
|
buf2[1] = 0x55
|
|
buf2[2] = 0x55
|
|
buf3[0] = 0x55
|
|
buf3[1] = 0x55
|
|
buf3[2] = 0x55
|
|
buf3[3] = 0x55
|
|
buf3[4] = 0xd5
|
|
buf3[5] = 0x3f
|
|
|
|
bl.append(buf1)
|
|
bl.append(buf2)
|
|
bl.append(buf3)
|
|
|
|
const canonical = Buffer.concat([buf1, buf2, buf3])
|
|
t.equal(bl.readDoubleBE(), canonical.readDoubleBE())
|
|
t.equal(bl.readDoubleLE(), canonical.readDoubleLE())
|
|
t.equal(bl.readDoubleBE(2), canonical.readDoubleBE(2))
|
|
t.equal(bl.readDoubleLE(2), canonical.readDoubleLE(2))
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('test toString', function (t) {
|
|
const bl = new BufferListStream()
|
|
|
|
bl.append(Buffer.from('abcd'))
|
|
bl.append(Buffer.from('efg'))
|
|
bl.append(Buffer.from('hi'))
|
|
bl.append(Buffer.from('j'))
|
|
|
|
t.equal(bl.toString('ascii', 0, 10), 'abcdefghij')
|
|
t.equal(bl.toString('ascii', 3, 10), 'defghij')
|
|
t.equal(bl.toString('ascii', 3, 6), 'def')
|
|
t.equal(bl.toString('ascii', 3, 8), 'defgh')
|
|
t.equal(bl.toString('ascii', 5, 10), 'fghij')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('test toString encoding', function (t) {
|
|
const bl = new BufferListStream()
|
|
const b = Buffer.from('abcdefghij\xff\x00')
|
|
|
|
bl.append(Buffer.from('abcd'))
|
|
bl.append(Buffer.from('efg'))
|
|
bl.append(Buffer.from('hi'))
|
|
bl.append(Buffer.from('j'))
|
|
bl.append(Buffer.from('\xff\x00'))
|
|
|
|
encodings.forEach(function (enc) {
|
|
t.equal(bl.toString(enc), b.toString(enc), enc)
|
|
})
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('uninitialized memory', function (t) {
|
|
const secret = crypto.randomBytes(256)
|
|
for (let i = 0; i < 1e6; i++) {
|
|
const clone = Buffer.from(secret)
|
|
const bl = new BufferListStream()
|
|
bl.append(Buffer.from('a'))
|
|
bl.consume(-1024)
|
|
const buf = bl.slice(1)
|
|
if (buf.indexOf(clone) !== -1) {
|
|
t.fail(`Match (at ${i})`)
|
|
break
|
|
}
|
|
}
|
|
t.end()
|
|
})
|
|
|
|
!process.browser && tape('test stream', function (t) {
|
|
const random = crypto.randomBytes(65534)
|
|
|
|
const bl = new BufferListStream((err, buf) => {
|
|
t.ok(Buffer.isBuffer(buf))
|
|
t.ok(err === null)
|
|
t.ok(random.equals(bl.slice()))
|
|
t.ok(random.equals(buf.slice()))
|
|
|
|
bl.pipe(fs.createWriteStream(path.join(os.tmpdir(), 'bl_test_rnd_out.dat')))
|
|
.on('close', function () {
|
|
const rndhash = crypto.createHash('md5').update(random).digest('hex')
|
|
const md5sum = crypto.createHash('md5')
|
|
const s = fs.createReadStream(path.join(os.tmpdir(), 'bl_test_rnd_out.dat'))
|
|
|
|
s.on('data', md5sum.update.bind(md5sum))
|
|
s.on('end', function () {
|
|
t.equal(rndhash, md5sum.digest('hex'), 'woohoo! correct hash!')
|
|
t.end()
|
|
})
|
|
})
|
|
})
|
|
|
|
fs.writeFileSync(path.join(os.tmpdir(), 'bl_test_rnd.dat'), random)
|
|
fs.createReadStream(path.join(os.tmpdir(), 'bl_test_rnd.dat')).pipe(bl)
|
|
})
|
|
|
|
tape('instantiation with Buffer', function (t) {
|
|
const buf = crypto.randomBytes(1024)
|
|
const buf2 = crypto.randomBytes(1024)
|
|
let b = BufferListStream(buf)
|
|
|
|
t.equal(buf.toString('hex'), b.slice().toString('hex'), 'same buffer')
|
|
b = BufferListStream([buf, buf2])
|
|
t.equal(b.slice().toString('hex'), Buffer.concat([buf, buf2]).toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('test String appendage', function (t) {
|
|
const bl = new BufferListStream()
|
|
const b = Buffer.from('abcdefghij\xff\x00')
|
|
|
|
bl.append('abcd')
|
|
bl.append('efg')
|
|
bl.append('hi')
|
|
bl.append('j')
|
|
bl.append('\xff\x00')
|
|
|
|
encodings.forEach(function (enc) {
|
|
t.equal(bl.toString(enc), b.toString(enc))
|
|
})
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('test Number appendage', function (t) {
|
|
const bl = new BufferListStream()
|
|
const b = Buffer.from('1234567890')
|
|
|
|
bl.append(1234)
|
|
bl.append(567)
|
|
bl.append(89)
|
|
bl.append(0)
|
|
|
|
encodings.forEach(function (enc) {
|
|
t.equal(bl.toString(enc), b.toString(enc))
|
|
})
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('write nothing, should get empty buffer', function (t) {
|
|
t.plan(3)
|
|
BufferListStream(function (err, data) {
|
|
t.notOk(err, 'no error')
|
|
t.ok(Buffer.isBuffer(data), 'got a buffer')
|
|
t.equal(0, data.length, 'got a zero-length buffer')
|
|
t.end()
|
|
}).end()
|
|
})
|
|
|
|
tape('unicode string', function (t) {
|
|
t.plan(2)
|
|
|
|
const inp1 = '\u2600'
|
|
const inp2 = '\u2603'
|
|
const exp = inp1 + ' and ' + inp2
|
|
const bl = BufferListStream()
|
|
|
|
bl.write(inp1)
|
|
bl.write(' and ')
|
|
bl.write(inp2)
|
|
t.equal(exp, bl.toString())
|
|
t.equal(Buffer.from(exp).toString('hex'), bl.toString('hex'))
|
|
})
|
|
|
|
tape('should emit finish', function (t) {
|
|
const source = BufferListStream()
|
|
const dest = BufferListStream()
|
|
|
|
source.write('hello')
|
|
source.pipe(dest)
|
|
|
|
dest.on('finish', function () {
|
|
t.equal(dest.toString('utf8'), 'hello')
|
|
t.end()
|
|
})
|
|
})
|
|
|
|
tape('basic copy', function (t) {
|
|
const buf = crypto.randomBytes(1024)
|
|
const buf2 = Buffer.alloc(1024)
|
|
const b = BufferListStream(buf)
|
|
|
|
b.copy(buf2)
|
|
t.equal(b.slice().toString('hex'), buf2.toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('copy after many appends', function (t) {
|
|
const buf = crypto.randomBytes(512)
|
|
const buf2 = Buffer.alloc(1024)
|
|
const b = BufferListStream(buf)
|
|
|
|
b.append(buf)
|
|
b.copy(buf2)
|
|
t.equal(b.slice().toString('hex'), buf2.toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('copy at a precise position', function (t) {
|
|
const buf = crypto.randomBytes(1004)
|
|
const buf2 = Buffer.alloc(1024)
|
|
const b = BufferListStream(buf)
|
|
|
|
b.copy(buf2, 20)
|
|
t.equal(b.slice().toString('hex'), buf2.slice(20).toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('copy starting from a precise location', function (t) {
|
|
const buf = crypto.randomBytes(10)
|
|
const buf2 = Buffer.alloc(5)
|
|
const b = BufferListStream(buf)
|
|
|
|
b.copy(buf2, 0, 5)
|
|
t.equal(b.slice(5).toString('hex'), buf2.toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('copy in an interval', function (t) {
|
|
const rnd = crypto.randomBytes(10)
|
|
const b = BufferListStream(rnd) // put the random bytes there
|
|
const actual = Buffer.alloc(3)
|
|
const expected = Buffer.alloc(3)
|
|
|
|
rnd.copy(expected, 0, 5, 8)
|
|
b.copy(actual, 0, 5, 8)
|
|
|
|
t.equal(actual.toString('hex'), expected.toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('copy an interval between two buffers', function (t) {
|
|
const buf = crypto.randomBytes(10)
|
|
const buf2 = Buffer.alloc(10)
|
|
const b = BufferListStream(buf)
|
|
|
|
b.append(buf)
|
|
b.copy(buf2, 0, 5, 15)
|
|
|
|
t.equal(b.slice(5, 15).toString('hex'), buf2.toString('hex'), 'same buffer')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('shallow slice across buffer boundaries', function (t) {
|
|
const bl = new BufferListStream(['First', 'Second', 'Third'])
|
|
|
|
t.equal(bl.shallowSlice(3, 13).toString(), 'stSecondTh')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('shallow slice within single buffer', function (t) {
|
|
t.plan(2)
|
|
|
|
const bl = new BufferListStream(['First', 'Second', 'Third'])
|
|
|
|
t.equal(bl.shallowSlice(5, 10).toString(), 'Secon')
|
|
t.equal(bl.shallowSlice(7, 10).toString(), 'con')
|
|
|
|
t.end()
|
|
})
|
|
|
|
tape('shallow slice single buffer', function (t) {
|
|
t.plan(3)
|
|
|
|
const bl = new BufferListStream(['First', 'Second', 'Third'])
|
|
|
|
t.equal(bl.shallowSlice(0, 5).toString(), 'First')
|
|
t.equal(bl.shallowSlice(5, 11).toString(), 'Second')
|
|
t.equal(bl.shallowSlice(11, 16).toString(), 'Third')
|
|
})
|
|
|
|
tape('shallow slice with negative or omitted indices', function (t) {
|
|
t.plan(4)
|
|
|
|
const bl = new BufferListStream(['First', 'Second', 'Third'])
|
|
|
|
t.equal(bl.shallowSlice().toString(), 'FirstSecondThird')
|
|
t.equal(bl.shallowSlice(5).toString(), 'SecondThird')
|
|
t.equal(bl.shallowSlice(5, -3).toString(), 'SecondTh')
|
|
t.equal(bl.shallowSlice(-8).toString(), 'ondThird')
|
|
})
|
|
|
|
tape('shallow slice does not make a copy', function (t) {
|
|
t.plan(1)
|
|
|
|
const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')]
|
|
const bl = new BufferListStream(buffers).shallowSlice(5, -3)
|
|
|
|
buffers[1].fill('h')
|
|
buffers[2].fill('h')
|
|
|
|
t.equal(bl.toString(), 'hhhhhhhh')
|
|
})
|
|
|
|
tape('shallow slice with 0 length', function (t) {
|
|
t.plan(1)
|
|
|
|
const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')]
|
|
const bl = (new BufferListStream(buffers)).shallowSlice(0, 0)
|
|
|
|
t.equal(bl.length, 0)
|
|
})
|
|
|
|
tape('shallow slice with 0 length from middle', function (t) {
|
|
t.plan(1)
|
|
|
|
const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')]
|
|
const bl = (new BufferListStream(buffers)).shallowSlice(10, 10)
|
|
|
|
t.equal(bl.length, 0)
|
|
})
|
|
|
|
tape('duplicate', function (t) {
|
|
t.plan(2)
|
|
|
|
const bl = new BufferListStream('abcdefghij\xff\x00')
|
|
const dup = bl.duplicate()
|
|
|
|
t.equal(bl.prototype, dup.prototype)
|
|
t.equal(bl.toString('hex'), dup.toString('hex'))
|
|
})
|
|
|
|
tape('destroy no pipe', function (t) {
|
|
t.plan(2)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream('alsdkfja;lsdkfja;lsdk')
|
|
|
|
bl.destroy()
|
|
|
|
t.equal(bl._bufs.length, 0)
|
|
t.equal(bl.length, 0)
|
|
})
|
|
|
|
tape('destroy with error', function (t) {
|
|
t.plan(3)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream('alsdkfja;lsdkfja;lsdk')
|
|
const err = new Error('kaboom')
|
|
|
|
bl.destroy(err)
|
|
bl.on('error', function (_err) {
|
|
t.equal(_err, err)
|
|
})
|
|
|
|
t.equal(bl._bufs.length, 0)
|
|
t.equal(bl.length, 0)
|
|
})
|
|
|
|
!process.browser && tape('destroy with pipe before read end', function (t) {
|
|
t.plan(2)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream()
|
|
fs.createReadStream(path.join(__dirname, '/test.js'))
|
|
.pipe(bl)
|
|
|
|
bl.destroy()
|
|
|
|
t.equal(bl._bufs.length, 0)
|
|
t.equal(bl.length, 0)
|
|
})
|
|
|
|
!process.browser && tape('destroy with pipe before read end with race', function (t) {
|
|
t.plan(2)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream()
|
|
|
|
fs.createReadStream(path.join(__dirname, '/test.js'))
|
|
.pipe(bl)
|
|
|
|
setTimeout(function () {
|
|
bl.destroy()
|
|
setTimeout(function () {
|
|
t.equal(bl._bufs.length, 0)
|
|
t.equal(bl.length, 0)
|
|
}, 500)
|
|
}, 500)
|
|
})
|
|
|
|
!process.browser && tape('destroy with pipe after read end', function (t) {
|
|
t.plan(2)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream()
|
|
fs.createReadStream(path.join(__dirname, '/test.js'))
|
|
.on('end', onEnd)
|
|
.pipe(bl)
|
|
|
|
function onEnd () {
|
|
bl.destroy()
|
|
|
|
t.equal(bl._bufs.length, 0)
|
|
t.equal(bl.length, 0)
|
|
}
|
|
})
|
|
|
|
!process.browser && tape('destroy with pipe while writing to a destination', function (t) {
|
|
t.plan(4)
|
|
|
|
/** @type {BufferListStreamWithPrivate} */
|
|
const bl = new BufferListStream()
|
|
const ds = new BufferListStream()
|
|
|
|
fs.createReadStream(path.join(__dirname, '/test.js'))
|
|
.on('end', onEnd)
|
|
.pipe(bl)
|
|
|
|
function onEnd () {
|
|
bl.pipe(ds)
|
|
|
|
setTimeout(function () {
|
|
bl.destroy()
|
|
|
|
t.equals(bl._bufs.length, 0)
|
|
t.equals(bl.length, 0)
|
|
|
|
ds.destroy()
|
|
|
|
t.equals(bl._bufs.length, 0)
|
|
t.equals(bl.length, 0)
|
|
}, 100)
|
|
}
|
|
})
|
|
|
|
!process.browser && tape('handle error', function (t) {
|
|
t.plan(2)
|
|
|
|
fs.createReadStream('/does/not/exist').pipe(BufferListStream(function (err, data) {
|
|
t.ok(err instanceof Error, 'has error')
|
|
t.notOk(data, 'no data')
|
|
}))
|
|
})
|