bittorrent-tracker/test/evict.js
2017-02-08 13:12:39 -08:00

127 lines
3.3 KiB
JavaScript

var Buffer = require('safe-buffer').Buffer
var Client = require('../')
var common = require('./common')
var test = require('tape')
var electronWebrtc = require('electron-webrtc')
var wrtc
var infoHash = '4cb67059ed6bd08362da625b3ae77f6f4a075705'
var peerId = Buffer.from('01234567890123456789')
var peerId2 = Buffer.from('12345678901234567890')
var peerId3 = Buffer.from('23456789012345678901')
function serverTest (t, serverType, serverFamily) {
t.plan(10)
var hostname = serverFamily === 'inet6'
? '[::1]'
: '127.0.0.1'
var opts = {
serverType: serverType,
peersCacheLength: 2 // LRU cache can only contain a max of 2 peers
}
common.createServer(t, opts, function (server) {
// Not using announceUrl param from `common.createServer()` since we
// want to control IPv4 vs IPv6.
var port = server[serverType].address().port
var announceUrl = serverType + '://' + hostname + ':' + port + '/announce'
var client1 = new Client({
infoHash: infoHash,
announce: [ announceUrl ],
peerId: peerId,
port: 6881,
wrtc: wrtc
})
if (serverType === 'ws') common.mockWebsocketTracker(client1)
client1.start()
client1.once('update', function (data) {
var client2 = new Client({
infoHash: infoHash,
announce: [ announceUrl ],
peerId: peerId2,
port: 6882,
wrtc: wrtc
})
if (serverType === 'ws') common.mockWebsocketTracker(client2)
client2.start()
client2.once('update', function (data) {
server.getSwarm(infoHash, function (err, swarm) {
t.error(err)
t.equal(swarm.complete + swarm.incomplete, 2)
// Ensure that first peer is evicted when a third one is added
var evicted = false
swarm.peers.once('evict', function (evictedPeer) {
t.equal(evictedPeer.value.peerId, peerId.toString('hex'))
t.equal(swarm.complete + swarm.incomplete, 2)
evicted = true
})
var client3 = new Client({
infoHash: infoHash,
announce: [ announceUrl ],
peerId: peerId3,
port: 6880,
wrtc: wrtc
})
if (serverType === 'ws') common.mockWebsocketTracker(client3)
client3.start()
client3.once('update', function (data) {
t.ok(evicted, 'client1 was evicted from server before client3 gets response')
t.equal(swarm.complete + swarm.incomplete, 2)
client1.destroy(function () {
t.pass('client1 destroyed')
})
client2.destroy(function () {
t.pass('client3 destroyed')
})
client3.destroy(function () {
t.pass('client3 destroyed')
})
server.close(function () {
t.pass('server destroyed')
})
})
})
})
})
})
}
test('evict: ipv4 server', function (t) {
serverTest(t, 'http', 'inet')
})
test('evict: http ipv6 server', function (t) {
serverTest(t, 'http', 'inet6')
})
test('evict: udp server', function (t) {
serverTest(t, 'udp', 'inet')
})
test('evict: ws server', function (t) {
wrtc = electronWebrtc()
wrtc.electronDaemon.once('ready', function () {
serverTest(t, 'ws', 'inet')
})
t.once('end', function () {
wrtc.close()
})
})