ut_metadata/test/fetch.js

87 lines
2.4 KiB
JavaScript

var fs = require('fs')
var parseTorrent = require('parse-torrent')
var Protocol = require('bittorrent-protocol')
var ut_metadata = require('../')
var test = require('tape')
// Used in multiple tests
var metadata = fs.readFileSync(__dirname + '/torrents/leaves-magnet.torrent')
var parsedTorrent = parseTorrent(metadata)
var id1 = new Buffer('01234567890123456789')
var id2 = new Buffer('12345678901234567890')
test('fetch()', function (t) {
t.plan(3)
var wire1 = new Protocol()
var wire2 = new Protocol()
wire1.pipe(wire2).pipe(wire1)
wire1.use(ut_metadata(metadata)) // wire1 already has metadata
wire2.use(ut_metadata()) // wire2 does not
wire2.ext('ut_metadata').fetch()
wire2.ext('ut_metadata').on('metadata', function (_metadata) {
// got metadata!
t.deepEqual(_metadata, metadata)
})
wire2.on('handshake', function (infoHash, peerId, extensions) {
wire2.handshake(parsedTorrent.infoHash, id2)
})
wire2.on('extended', function (ext) {
if (ext === 'handshake') {
t.pass('got extended handshake')
} else if (ext === 'ut_metadata') {
t.pass('got extended ut_metadata message')
// this is emitted for consistency's sake, but it's ignored
// by the user since the ut_metadata package handles the
// complexities internally
} else {
t.fail('unexpected handshake type')
}
})
wire1.handshake(parsedTorrent.infoHash, id1)
})
test('fetch() from peer without metadata', function (t) {
t.plan(1)
var wire1 = new Protocol()
var wire2 = new Protocol()
wire1.pipe(wire2).pipe(wire1)
wire1.use(ut_metadata()) // neither wire has metadata
wire2.use(ut_metadata())
wire2.ext('ut_metadata').fetch()
wire2.ext('ut_metadata').on('metadata', function () {
t.fail('No "metadata" event should fire')
})
wire1.ext('ut_metadata').onMessage = function () {
t.fail('No messages should be sent to wire1')
// No messages should be sent because wire1 never sent metadata_size in the
// extended handshake, so he doesn't have metadata
}
wire2.on('handshake', function (infoHash, peerId, extensions) {
wire2.handshake(parsedTorrent.infoHash, id2)
})
wire2.on('extended', function (ext) {
if (ext === 'handshake') {
t.pass('got extended handshake')
} else if (ext === 'ut_metadata') {
t.fail('should not get extended ut_metadata message')
} else {
t.fail('unexpected handshake type')
}
})
wire1.handshake(parsedTorrent.infoHash, id1)
})