lepu-test-platform-web/node_modules/stream-http/test/browser/binary-streaming.js

71 lines
2.0 KiB
JavaScript

var Buffer = require('buffer').Buffer
var fs = require('fs')
var test = require('tape')
var UAParser = require('ua-parser-js')
var http = require('../..')
var browser = (new UAParser()).setUA(navigator.userAgent).getBrowser()
var browserName = browser.name
var browserVersion = browser.major
// Binary streaming doesn't work in IE10 or below
var skipStreamingCheck = (browserName === 'IE' && browserVersion <= 10)
// Binary data gets corrupted in IE8 or below
var skipVerification = (browserName === 'IE' && browserVersion <= 8)
// IE8 tends to throw up modal dialogs complaining about scripts running too long
// Since streaming doesn't actually work there anyway, just use one copy
var COPIES = skipVerification ? 1 : 20
var MIN_PIECES = 2
var referenceOnce = fs.readFileSync(__dirname + '/../server/static/browserify.png')
var reference = new Buffer(referenceOnce.length * COPIES)
for(var i = 0; i < COPIES; i++) {
referenceOnce.copy(reference, referenceOnce.length * i)
}
test('binary streaming', function (t) {
http.get({
path: '/browserify.png?copies=' + COPIES,
mode: 'allow-wrong-content-type'
}, function (res) {
var buffers = []
res.on('end', function () {
if (skipVerification)
t.skip('binary data not preserved on IE <= 8')
else
t.ok(reference.equals(Buffer.concat(buffers)), 'contents match')
if (skipStreamingCheck)
t.skip('streaming not available on IE <= 8')
else
t.ok(buffers.length >= MIN_PIECES, 'received in multiple parts')
t.end()
})
res.on('data', function (data) {
buffers.push(data)
})
})
})
test('large binary request without streaming', function (t) {
http.get({
path: '/browserify.png?copies=' + COPIES,
mode: 'default',
}, function (res) {
var buffers = []
res.on('end', function () {
if (skipVerification)
t.skip('binary data not preserved on IE <= 8')
else
t.ok(reference.equals(Buffer.concat(buffers)), 'contents match')
t.end()
})
res.on('data', function (data) {
buffers.push(data)
})
})
})