overleaf/services/real-time/test/acceptance/js/PubSubRace.js

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/* eslint-disable
no-return-assign,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS102: Remove unnecessary code created because of implicit returns
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
const RealTimeClient = require('./helpers/RealTimeClient')
const MockDocUpdaterServer = require('./helpers/MockDocUpdaterServer')
const FixturesManager = require('./helpers/FixturesManager')
const async = require('async')
const settings = require('@overleaf/settings')
const redis = require('@overleaf/redis-wrapper')
const rclient = redis.createClient(settings.redis.pubsub)
describe('PubSubRace', function () {
before(function (done) {
return MockDocUpdaterServer.run(done)
})
describe('when the client leaves a doc before joinDoc completes', function () {
before(function (done) {
return async.series(
[
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cb => {
return FixturesManager.setUpProject(
{
privilegeLevel: 'owner',
project: {
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name: 'Test Project',
},
},
(e, { project_id: projectId, user_id: userId }) => {
this.project_id = projectId
this.user_id = userId
return cb()
}
)
},
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cb => {
this.clientA = RealTimeClient.connect(
this.project_id,
(error, project, privilegeLevel, protocolVersion) => {
this.project = project
this.privilegeLevel = privilegeLevel
this.protocolVersion = protocolVersion
return cb(error)
}
)
},
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cb => {
return FixturesManager.setUpDoc(
this.project_id,
{ lines: this.lines, version: this.version, ops: this.ops },
(e, { doc_id: docId }) => {
this.doc_id = docId
return cb(e)
}
)
},
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cb => {
this.clientA.emit('joinDoc', this.doc_id, () => {})
// leave before joinDoc completes
return this.clientA.emit('leaveDoc', this.doc_id, cb)
},
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cb => {
// wait for subscribe and unsubscribe
return setTimeout(cb, 100)
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},
],
done
)
})
return it('should not subscribe to the applied-ops channels anymore', function (done) {
rclient.pubsub('CHANNELS', (err, resp) => {
if (err) {
return done(err)
}
resp.should.not.include(`applied-ops:${this.doc_id}`)
return done()
})
return null
})
})
describe('when the client emits joinDoc and leaveDoc requests frequently and leaves eventually', function () {
before(function (done) {
return async.series(
[
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cb => {
return FixturesManager.setUpProject(
{
privilegeLevel: 'owner',
project: {
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name: 'Test Project',
},
},
(e, { project_id: projectId, user_id: userId }) => {
this.project_id = projectId
this.user_id = userId
return cb()
}
)
},
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cb => {
this.clientA = RealTimeClient.connect(
this.project_id,
(error, project, privilegeLevel, protocolVersion) => {
this.project = project
this.privilegeLevel = privilegeLevel
this.protocolVersion = protocolVersion
return cb(error)
}
)
},
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cb => {
return FixturesManager.setUpDoc(
this.project_id,
{ lines: this.lines, version: this.version, ops: this.ops },
(e, { doc_id: docId }) => {
this.doc_id = docId
return cb(e)
}
)
},
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cb => {
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
return this.clientA.emit('leaveDoc', this.doc_id, cb)
},
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cb => {
// wait for subscribe and unsubscribe
return setTimeout(cb, 100)
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},
],
done
)
})
return it('should not subscribe to the applied-ops channels anymore', function (done) {
rclient.pubsub('CHANNELS', (err, resp) => {
if (err) {
return done(err)
}
resp.should.not.include(`applied-ops:${this.doc_id}`)
return done()
})
return null
})
})
describe('when the client emits joinDoc and leaveDoc requests frequently and remains in the doc', function () {
before(function (done) {
return async.series(
[
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cb => {
return FixturesManager.setUpProject(
{
privilegeLevel: 'owner',
project: {
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name: 'Test Project',
},
},
(e, { project_id: projectId, user_id: userId }) => {
this.project_id = projectId
this.user_id = userId
return cb()
}
)
},
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cb => {
this.clientA = RealTimeClient.connect(
this.project_id,
(error, project, privilegeLevel, protocolVersion) => {
this.project = project
this.privilegeLevel = privilegeLevel
this.protocolVersion = protocolVersion
return cb(error)
}
)
},
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cb => {
return FixturesManager.setUpDoc(
this.project_id,
{ lines: this.lines, version: this.version, ops: this.ops },
(e, { doc_id: docId }) => {
this.doc_id = docId
return cb(e)
}
)
},
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cb => {
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
this.clientA.emit('joinDoc', this.doc_id, () => {})
this.clientA.emit('leaveDoc', this.doc_id, () => {})
return this.clientA.emit('joinDoc', this.doc_id, cb)
},
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cb => {
// wait for subscribe and unsubscribe
return setTimeout(cb, 100)
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},
],
done
)
})
return it('should subscribe to the applied-ops channels', function (done) {
rclient.pubsub('CHANNELS', (err, resp) => {
if (err) {
return done(err)
}
resp.should.include(`applied-ops:${this.doc_id}`)
return done()
})
return null
})
})
return describe('when the client disconnects before joinDoc completes', function () {
before(function (done) {
return async.series(
[
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cb => {
return FixturesManager.setUpProject(
{
privilegeLevel: 'owner',
project: {
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name: 'Test Project',
},
},
(e, { project_id: projectId, user_id: userId }) => {
this.project_id = projectId
this.user_id = userId
return cb()
}
)
},
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cb => {
this.clientA = RealTimeClient.connect(
this.project_id,
(error, project, privilegeLevel, protocolVersion) => {
this.project = project
this.privilegeLevel = privilegeLevel
this.protocolVersion = protocolVersion
return cb(error)
}
)
},
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cb => {
return FixturesManager.setUpDoc(
this.project_id,
{ lines: this.lines, version: this.version, ops: this.ops },
(e, { doc_id: docId }) => {
this.doc_id = docId
return cb(e)
}
)
},
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cb => {
let joinDocCompleted = false
this.clientA.emit(
'joinDoc',
this.doc_id,
() => (joinDocCompleted = true)
)
// leave before joinDoc completes
return setTimeout(
() => {
if (joinDocCompleted) {
return cb(new Error('joinDocCompleted -- lower timeout'))
}
this.clientA.on('disconnect', () => cb())
return this.clientA.disconnect()
},
// socket.io processes joinDoc and disconnect with different delays:
// - joinDoc goes through two process.nextTick
// - disconnect goes through one process.nextTick
// We have to inject the disconnect event into a different event loop
// cycle.
3
)
},
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cb => {
// wait for subscribe and unsubscribe
return setTimeout(cb, 100)
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},
],
done
)
})
it('should not subscribe to the editor-events channels anymore', function (done) {
rclient.pubsub('CHANNELS', (err, resp) => {
if (err) {
return done(err)
}
resp.should.not.include(`editor-events:${this.project_id}`)
return done()
})
return null
})
return it('should not subscribe to the applied-ops channels anymore', function (done) {
rclient.pubsub('CHANNELS', (err, resp) => {
if (err) {
return done(err)
}
resp.should.not.include(`applied-ops:${this.doc_id}`)
return done()
})
return null
})
})
})