test-browser.js•1.17 kB
var stream = require('stream')
var pump = require('./index')
var rs = new stream.Readable()
var ws = new stream.Writable()
rs._read = function (size) {
this.push(Buffer(size).fill('abc'))
}
ws._write = function (chunk, encoding, cb) {
setTimeout(function () {
cb()
}, 100)
}
var toHex = function () {
var reverse = new (require('stream').Transform)()
reverse._transform = function (chunk, enc, callback) {
reverse.push(chunk.toString('hex'))
callback()
}
return reverse
}
var wsClosed = false
var rsClosed = false
var callbackCalled = false
var check = function () {
if (wsClosed && rsClosed && callbackCalled) {
console.log('test-browser.js passes')
clearTimeout(timeout)
}
}
ws.on('finish', function () {
wsClosed = true
check()
})
rs.on('end', function () {
rsClosed = true
check()
})
var res = pump(rs, toHex(), toHex(), toHex(), ws, function () {
callbackCalled = true
check()
})
if (res !== ws) {
throw new Error('should return last stream')
}
setTimeout(function () {
rs.push(null)
rs.emit('close')
}, 1000)
var timeout = setTimeout(function () {
check()
throw new Error('timeout')
}, 5000)