overleaf/services/document-updater/test/unit/js/LockManager/getLockTests.js

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/* eslint-disable
camelcase,
handle-callback-err,
no-return-assign,
no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS101: Remove unnecessary use of Array.from
* DS102: Remove unnecessary code created because of implicit returns
* DS206: Consider reworking classes to avoid initClass
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
const sinon = require('sinon')
const modulePath = '../../../../app/js/LockManager.js'
const SandboxedModule = require('sandboxed-module')
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describe('LockManager - getting the lock', function () {
beforeEach(function () {
let Profiler
this.LockManager = SandboxedModule.require(modulePath, {
requires: {
'@overleaf/redis-wrapper': {
createClient: () => {
return { auth() {} }
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},
},
'./Metrics': { inc() {} },
'./Profiler': (Profiler = (function () {
Profiler = class Profiler {
static initClass() {
this.prototype.log = sinon.stub().returns({ end: sinon.stub() })
this.prototype.end = sinon.stub()
}
}
Profiler.initClass()
return Profiler
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})()),
},
})
this.callback = sinon.stub()
return (this.doc_id = 'doc-id-123')
})
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describe('when the lock is not set', function () {
beforeEach(function (done) {
this.lockValue = 'mock-lock-value'
this.LockManager.tryLock = sinon
.stub()
.callsArgWith(1, null, true, this.lockValue)
return this.LockManager.getLock(this.doc_id, (...args) => {
this.callback(...Array.from(args || []))
return done()
})
})
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it('should try to get the lock', function () {
return this.LockManager.tryLock.calledWith(this.doc_id).should.equal(true)
})
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it('should only need to try once', function () {
return this.LockManager.tryLock.callCount.should.equal(1)
})
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return it('should return the callback with the lock value', function () {
return this.callback.calledWith(null, this.lockValue).should.equal(true)
})
})
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describe('when the lock is initially set', function () {
beforeEach(function (done) {
this.lockValue = 'mock-lock-value'
const startTime = Date.now()
let tries = 0
this.LockManager.LOCK_TEST_INTERVAL = 5
this.LockManager.tryLock = (doc_id, callback) => {
if (callback == null) {
callback = function (error, isFree) {}
}
if (Date.now() - startTime < 20 || tries < 2) {
tries = tries + 1
return callback(null, false)
} else {
return callback(null, true, this.lockValue)
}
}
sinon.spy(this.LockManager, 'tryLock')
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return this.LockManager.getLock(this.doc_id, (...args) => {
this.callback(...Array.from(args || []))
return done()
})
})
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it('should call tryLock multiple times until free', function () {
return (this.LockManager.tryLock.callCount > 1).should.equal(true)
})
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return it('should return the callback with the lock value', function () {
return this.callback.calledWith(null, this.lockValue).should.equal(true)
})
})
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return describe('when the lock times out', function () {
beforeEach(function (done) {
const time = Date.now()
this.LockManager.MAX_LOCK_WAIT_TIME = 5
this.LockManager.tryLock = sinon.stub().callsArgWith(1, null, false)
return this.LockManager.getLock(this.doc_id, (...args) => {
this.callback(...Array.from(args || []))
return done()
})
})
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return it('should return the callback with an error', function () {
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return this.callback
.calledWith(
sinon.match
.instanceOf(Error)
.and(sinon.match.has('doc_id', this.doc_id))
)
.should.equal(true)
})
})
})