Files
bug-em/node_modules/twit/tests/streaming.js
thewesker f8c72a5a29 DMs
2016-06-18 13:24:12 -04:00

647 lines
19 KiB
JavaScript

var assert = require('assert')
, http = require('http')
, EventEmitter = require('events').EventEmitter
, rewire = require('rewire')
, sinon = require('sinon')
, Twit = require('../lib/twitter')
, config1 = require('../config1')
, config2 = require('../config2')
, colors = require('colors')
, helpers = require('./helpers')
, util = require('util')
, zlib = require('zlib')
, async = require('async')
, restTest = require('./rest');
/**
* Stop the stream and check the tweet we got back.
* Call @done on completion.
*
* @param {object} stream object returned by twit.stream()
* @param {Function} done completion callback
*/
exports.checkStream = function (stream, done) {
stream.on('connected', function () {
console.log('\nconnected'.grey)
});
stream.once('tweet', function (tweet) {
stream.stop()
assert.ok(tweet)
assert.equal('string', typeof tweet.text)
assert.equal('string', typeof tweet.id_str)
console.log(('\ntweet: '+tweet.text).grey)
done()
});
stream.on('reconnecting', function (req, res, connectInterval) {
console.log('Got disconnected. Scheduling reconnect! statusCode:', res.statusCode, 'connectInterval', connectInterval)
});
stream.on('error', function (err) {
console.log('Stream emitted an error', err)
return done(err)
})
}
/**
* Check the stream state is correctly set for a stopped stream.
*
* @param {object} stream object returned by twit.stream()
*/
exports.checkStreamStopState = function (stream) {
assert.strictEqual(stream._connectInterval, 0)
assert.strictEqual(stream._usedFirstReconnect, false)
assert.strictEqual(stream._scheduledReconnect, undefined)
assert.strictEqual(stream._stallAbortTimeout, undefined)
}
describe('Streaming API', function () {
it('statuses/sample', function (done) {
var twit = new Twit(config1);
var stream = twit.stream('statuses/sample')
exports.checkStream(stream, done)
})
it('statuses/filter using `track`', function (done) {
this.timeout(120000)
var twit = new Twit(config2);
var stream = twit.stream('statuses/filter', { track: 'fun' })
exports.checkStream(stream, done)
})
it('statuses/filter using `locations` string', function (done) {
var twit = new Twit(config1);
var world = '-180,-90,180,90';
var stream = twit.stream('statuses/filter', { locations: world })
exports.checkStream(stream, done)
})
it('statuses/filter using `locations` array for San Francisco and New York', function (done) {
var twit = new Twit(config2);
var params = {
locations: [ '-122.75', '36.8', '121.75', '37.8', '-74', '40', '73', '41' ]
}
var stream = twit.stream('statuses/filter', params)
exports.checkStream(stream, done)
})
it('statuses/filter using `track` array', function (done) {
var twit = new Twit(config1);
var params = {
track: [ 'twitter', ':)', 'fun' ]
}
var stream = twit.stream('statuses/filter', params)
exports.checkStream(stream, done)
})
it('statuses/filter using `track` and `language`', function (done) {
var twit = new Twit(config1);
var params = {
track: [ 'twitter', '#apple', 'google', 'twitter', 'facebook', 'happy', 'party', ':)' ],
language: 'en'
}
var stream = twit.stream('statuses/filter', params)
exports.checkStream(stream, done)
})
it('stopping & restarting the stream works', function (done) {
var twit = new Twit(config2);
var stream = twit.stream('statuses/sample')
//stop the stream after 2 seconds
setTimeout(function () {
stream.stop()
exports.checkStreamStopState(stream)
console.log('\nstopped stream')
}, 2000)
//after 3 seconds, start the stream, and stop after 'connect'
setTimeout(function () {
stream.once('connected', function (req) {
console.log('\nrestarted stream')
stream.stop()
exports.checkStreamStopState(stream)
console.log('\nstopped stream')
done()
})
//restart the stream
stream.start()
}, 3000)
})
it('stopping & restarting stream emits to previously assigned callbacks', function (done) {
var twit = new Twit(config1);
var stream = twit.stream('statuses/sample')
var started = false
var numTweets = 0
stream.on('tweet', function (tweet) {
process.stdout.write('.')
if (!started) {
started = true
numTweets++
console.log('received tweet', numTweets)
console.log('stopping stream')
stream.stop()
exports.checkStreamStopState(stream)
// we've successfully received a new tweet after restarting, test successful
if (numTweets === 2) {
done()
} else {
started = false
console.log('restarting stream')
setTimeout(function () {
stream.start()
}, 1000)
}
}
})
stream.on('limit', function (limitMsg) {
console.log('limit', limitMsg)
})
stream.on('disconnect', function (disconnMsg) {
console.log('disconnect', disconnMsg)
})
stream.on('reconnect', function (req, res, ival) {
console.log('reconnect. statusCode:', res.statusCode, 'interval:', ival)
})
stream.on('connect', function (req) {
console.log('connect')
})
})
})
describe('streaming API direct message events', function () {
var senderScreenName;
var receiverScreenName;
var twitSender;
var twitReceiver;
// before we send direct messages the user receiving the DM
// has to follow the sender. Make this so.
before(function (done) {
twitSender = new Twit(config1);
twitReceiver = new Twit(config2);
// get sender/receiver names in parallel, then make the receiver follow the sender
async.parallel({
// get sender screen name and set it for tests to use
getSenderScreenName: function (parNext) {
console.log('getting sender user screen_name')
twitSender.get('account/verify_credentials', { twit_options: { retry: true } }, function (err, reply) {
assert(!err, err)
assert(reply)
assert(reply.screen_name)
senderScreenName = reply.screen_name
return parNext()
})
},
// get receiver screen name and set it for tests to use
getReceiverScreenName: function (parNext) {
console.log('getting receiver user screen_name')
twitReceiver.get('account/verify_credentials', { twit_options: { retry: true } }, function (err, reply) {
assert(!err, err)
assert(reply)
assert(reply.screen_name)
receiverScreenName = reply.screen_name
return parNext()
})
}
}, function (err) {
assert(!err, err)
var followParams = { screen_name: senderScreenName }
console.log('making receiver user follow the sender user')
// make receiver follow sender
twitReceiver.post('friendships/create', followParams, function (err, reply) {
assert(!err, err)
assert(reply.following)
done()
})
})
})
it('user_stream `direct_message` event', function (done) {
// User A follows User B
// User A connects to their user stream
// User B posts a DM to User A
// User A receives it in their user stream
this.timeout(0);
// build out DM params
function makeDmParams () {
return {
screen_name: receiverScreenName,
text: helpers.generateRandomString(10) + ' direct message streaming event test! :-) ' + helpers.generateRandomString(20),
twit_options: {
retry: true
}
}
}
var dmIdsReceived = []
var dmIdsSent = []
var sentDmFound = false
// start listening for user stream events
var receiverStream = twitReceiver.stream('user')
console.log('\nlistening for DMs')
// listen for direct_message event and check DM once it's received
receiverStream.on('direct_message', function (directMsg) {
if (sentDmFound) {
// don't call `done` more than once
return
}
console.log('got DM event. id:', directMsg.direct_message.id_str)
restTest.checkDm(directMsg.direct_message)
dmIdsReceived.push(directMsg.direct_message.id_str)
// make sure one of the DMs sent was found
// (we can send multiple DMs if our stream has to reconnect)
sentDmFound = dmIdsSent.some(function (dmId) {
return dmId == directMsg.direct_message.id_str
})
if (!sentDmFound) {
console.log('this DM doesnt match our test DMs - still waiting for a matching one.')
console.log('dmIdsSent', dmIdsSent)
return
}
receiverStream.stop()
return done()
})
var lastTimeSent = 0
var msToWait = 0
var postDmInterval = null
receiverStream.on('connected', function () {
var dmParams = makeDmParams()
console.log('sending a new DM:', dmParams.text)
twitSender.post('direct_messages/new', dmParams, function (err, reply) {
assert(!err, err)
assert(reply)
restTest.checkDm(reply)
assert(reply.id_str)
// we will check this dm against the reply recieved in the message event
dmIdsSent.push(reply.id_str)
console.log('successfully posted DM:', reply.text, reply.id_str)
if (dmIdsReceived.indexOf(reply.id_str) !== -1) {
// our response to the DM posting lost the race against the direct_message
// listener (we already got the event). So we can finish the test.
done()
}
})
})
after(function (done) {
console.log('cleaning up DMs:', dmIdsSent)
// delete the DMs we posted
var deleteDms = dmIdsSent.map(function (dmId) {
return function (next) {
assert.equal(typeof dmId, 'string')
console.log('\ndeleting DM', dmId)
var params = { id: dmId, twit_options: { retry: true } }
twitSender.post('direct_messages/destroy', params, function (err, reply) {
assert(!err, err)
restTest.checkDm(reply)
assert.equal(reply.id, dmId)
return next()
})
}
})
async.parallel(deleteDms, done)
})
})
})
describe('streaming API friends preamble', function () {
it('returns an array of strings if stringify_friend_ids is true', function (done) {
var twit = new Twit(config1);
var stream = twit.stream('user', { stringify_friend_ids: true });
stream.on('friends', function (friendsObj) {
assert(friendsObj)
assert(friendsObj.friends_str)
if (friendsObj.friends_str.length) {
assert.equal(typeof friendsObj.friends_str[0], 'string')
} else {
console.log('\nEmpty friends preamble:', friendsObj, '. Make some friends on Twitter! ^_^')
}
done()
})
})
})
describe('streaming API bad request', function (done) {
it('emits an error for a 401 response', function (done) {
var badCredentials = {
consumer_key: 'a'
, consumer_secret: 'b'
, access_token: 'c'
, access_token_secret: 'd'
}
var twit = new Twit(badCredentials);
var stream = twit.stream('statuses/filter', { track : ['foo'] });
stream.on('parser-error', function (err) {
assert.equal(err.statusCode, 401)
assert(err.twitterReply)
return done()
})
})
})
describe('streaming API `messages` event', function (done) {
var request = require('request');
var originalPost = request.post;
var RewiredTwit = rewire('../lib/twitter');
var RewiredStreamingApiConnection = rewire('../lib/streaming-api-connection');
var revertParser, revertTwit;
var MockParser = function () {
var self = this;
EventEmitter.call(self);
process.nextTick(function () {
self.emit('element', {scrub_geo: 'bar'})
self.emit('element', {limit: 'buzz'})
});
}
util.inherits(MockParser, EventEmitter);
before(function () {
revertTwit = RewiredTwit.__set__('StreamingAPIConnection', RewiredStreamingApiConnection);
revertParser = RewiredStreamingApiConnection.__set__('Parser', MockParser);
request.post = function () { return new helpers.FakeRequest() }
})
after(function () {
request.post = originalPost;
revertTwit();
revertParser();
})
it('is returned for 2 different event types', function (done) {
var twit = new RewiredTwit(config1);
var stream = twit.stream('statuses/sample');
var gotScrubGeo = false;
var gotLimit = false;
var numMessages = 0;
var maybeDone = function () {
if (gotScrubGeo && gotLimit && numMessages == 2) {
done()
}
}
stream.on('limit', function () {
gotLimit = true;
maybeDone();
});
stream.on('scrub_geo', function () {
gotScrubGeo = true;
maybeDone();
})
stream.on('message', function (msg) {
numMessages++;
maybeDone();
})
})
})
describe('streaming reconnect', function (done) {
it('correctly implements connection closing backoff', function (done) {
var stubPost = function () {
var fakeRequest = new helpers.FakeRequest()
process.nextTick(function () {
fakeRequest.emit('close')
})
return fakeRequest
}
var request = require('request')
var stubPost = sinon.stub(request, 'post', stubPost)
var twit = new Twit(config1);
var stream = twit.stream('statuses/filter', { track: [ 'fun', 'yolo']});
var reconnects = [0, 250, 500, 750]
var reconnectCount = -1
var testDone = false
stream.on('reconnect', function () {
if (testDone) {
return
}
reconnectCount += 1
var expectedInterval = reconnects[reconnectCount]
// make sure our connect interval is correct
assert.equal(stream._connectInterval, expectedInterval);
// simulate immediate reconnect by forcing a new connection (`self._connectInterval` parameter unchanged)
stream._startPersistentConnection();
if (reconnectCount === reconnects.length -1) {
// restore request.post
stubPost.restore()
testDone = true
return done();
}
});
});
it('correctly implements 420 backoff', function (done) {
var stubPost = function () {
var fakeRequest = new helpers.FakeRequest()
process.nextTick(function () {
var fakeResponse = new helpers.FakeResponse(420)
fakeRequest.emit('response', fakeResponse)
fakeRequest.emit('close')
})
return fakeRequest
}
var request = require('request')
var stubPost = sinon.stub(request, 'post', stubPost)
var twit = new Twit(config1);
var stream = twit.stream('statuses/filter', { track: [ 'fun', 'yolo']});
var reconnects = [60000, 120000, 240000, 480000]
var reconnectCount = -1
var testComplete = false
stream.on('reconnect', function (req, res, connectInterval) {
if (testComplete) {
// prevent race between last connection attempt firing a reconnect and us validating the final
// reconnect value in `reconnects`
return
}
reconnectCount += 1
var expectedInterval = reconnects[reconnectCount]
// make sure our connect interval is correct
assert.equal(stream._connectInterval, connectInterval);
assert.equal(stream._connectInterval, expectedInterval);
// simulate immediate reconnect by forcing a new connection (`self._connectInterval` parameter unchanged)
stream._startPersistentConnection();
if (reconnectCount === reconnects.length -1) {
// restore request.post
stubPost.restore()
testComplete = true
return done();
}
});
});
});
describe('Streaming API disconnect message', function (done) {
it('results in stopping the stream', function (done) {
var stubPost = function () {
var fakeRequest = new helpers.FakeRequest()
process.nextTick(function () {
var body = zlib.gzipSync(JSON.stringify({disconnect: true}) + '\r\n')
var fakeResponse = new helpers.FakeResponse(200, body)
fakeRequest.emit('response', fakeResponse);
fakeResponse.emit('close')
});
return fakeRequest
}
var request = require('request')
var origRequest = request.post
var stubs = sinon.collection
stubs.stub(request, 'post', stubPost)
var twit = new Twit(config1);
var stream = twit.stream('statuses/filter', { track: ['fun']});
stream.on('disconnect', function (disconnMsg) {
stream.stop();
// restore stub
request.post = origRequest
done();
})
})
});
describe('Streaming API Connection limit exceeded message', function (done) {
it('results in an `error` event containing the message', function (done) {
var errMsg = 'Exceeded connection limit for user';
var stubPost = function () {
var fakeRequest = new helpers.FakeRequest();
process.nextTick(function () {
var body = zlib.gzipSync(errMsg + '\r\n');
var fakeResponse = new helpers.FakeResponse(200, body);
fakeRequest.emit('response', fakeResponse);
fakeResponse.emit('close');
});
return fakeRequest
}
var request = require('request');
var origRequest = request.post;
var stubs = sinon.collection;
stubs.stub(request, 'post', stubPost);
var twit = new Twit(config1);
var stream = twit.stream('statuses/filter');
stream.on('error', function (err) {
assert(err.toString().indexOf(errMsg) !== -1, 'Unexpected error msg:' + errMsg + '.');;
stream.stop();
// restore stub
request.post = origRequest;
done();
})
})
})
describe('Streaming API connection management', function () {
it('.stop() works in all states', function (done) {
var stubPost = function () {
var fakeRequest = new helpers.FakeRequest();
process.nextTick(function () {
var body = zlib.gzipSync('Foobar\r\n');
var fakeResponse = new helpers.FakeResponse(200, body);
fakeRequest.emit('response', fakeResponse);
});
return fakeRequest
}
var request = require('request');
var origRequest = request.post;
var stubs = sinon.collection;
stubs.stub(request, 'post', stubPost);
var twit = new Twit(config1);
var stream = twit.stream('statuses/sample');
stream.stop();
console.log('\nStopped. Restarting..');
stream.start();
stream.once('connect', function(request) {
console.log('Stream emitted `connect`. Stopping & starting stream..')
stream.stop();
stream.once('connected', function () {
console.log('Stream emitted `connected`. Stopping stream.');
stream.stop();
stubs.restore();
done();
});
stream.start();
});
})
})