mirror of
https://github.com/overleaf/overleaf.git
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330 lines
11 KiB
CoffeeScript
330 lines
11 KiB
CoffeeScript
sinon = require('sinon')
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chai = require('chai')
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should = chai.should()
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modulePath = "../../../../app/js/DocOpsManager.js"
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SandboxedModule = require('sandboxed-module')
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ObjectId = require("../../../../app/js/mongojs").ObjectId
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describe "DocOpsManager", ->
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beforeEach ->
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@doc_id = ObjectId().toString()
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@project_id = "project-id"
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@callback = sinon.stub()
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@DocOpsManager = SandboxedModule.require modulePath, requires:
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"./RedisManager": @RedisManager = {}
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"./mongojs":
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db: @db = { docOps: {} }
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ObjectId: ObjectId
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"logger-sharelatex": @logger = { log: sinon.stub(), error: sinon.stub() }
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"./Metrics": @Metrics =
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Timer: class Timer
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done: sinon.stub()
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"./TrackChangesManager": @TrackChangesManager = {}
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describe "flushDocOpsToMongo", ->
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describe "when versions are consistent", ->
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beforeEach ->
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@mongo_version = 40
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@redis_version = 42
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@ops = [ "mock-op-1", "mock-op-2" ]
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@DocOpsManager.getDocVersionInMongo = sinon.stub().callsArgWith(1, null, @mongo_version)
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@RedisManager.getDocVersion = sinon.stub().callsArgWith(1, null, @redis_version)
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@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
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@DocOpsManager._appendDocOpsInMongo = sinon.stub().callsArg(3)
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@DocOpsManager.flushDocOpsToMongo @project_id, @doc_id, @callback
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it "should get the version from Mongo", ->
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@DocOpsManager.getDocVersionInMongo
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.calledWith(@doc_id)
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.should.equal true
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it "should get the version from REdis", ->
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@RedisManager.getDocVersion
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.calledWith(@doc_id)
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.should.equal true
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it "should get all doc ops since the version in Mongo", ->
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@RedisManager.getPreviousDocOps
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.calledWith(@doc_id, @mongo_version, -1)
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.should.equal true
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it "should update Mongo with the new ops", ->
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@DocOpsManager._appendDocOpsInMongo
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.calledWith(@doc_id, @ops, @redis_version)
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.should.equal true
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it "should call the callback", ->
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@callback.called.should.equal true
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it "should time the execution", ->
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@Metrics.Timer::done.called.should.equal true
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describe "when the number of ops does not match the difference in versions", ->
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beforeEach ->
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@mongo_version = 40
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@redis_version = 45
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@ops = [ "mock-op-1", "mock-op-2" ]
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@DocOpsManager.getDocVersionInMongo = sinon.stub().callsArgWith(1, null, @mongo_version)
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@RedisManager.getDocVersion = sinon.stub().callsArgWith(1, null, @redis_version)
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@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
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@DocOpsManager._appendDocOpsInMongo = sinon.stub().callsArg(3)
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@DocOpsManager.flushDocOpsToMongo @project_id, @doc_id, @callback
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it "should call the callback with an error", ->
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@callback.calledWith(new Error("inconsistet versions")).should.equal true
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it "should log an error", ->
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@logger.error
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.calledWith(doc_id: @doc_id, mongoVersion: @mongo_version, redisVersion: @redis_version, opsLength: @ops.length, "version difference does not match ops length")
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.should.equal true
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it "should not modify mongo", ->
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@DocOpsManager._appendDocOpsInMongo.called.should.equal false
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it "should time the execution", ->
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@Metrics.Timer::done.called.should.equal true
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describe "when redis version is behind mongo version", ->
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beforeEach ->
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@mongo_version = 40
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@redis_version = 30
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@DocOpsManager.getDocVersionInMongo = sinon.stub().callsArgWith(1, null, @mongo_version)
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@RedisManager.getDocVersion = sinon.stub().callsArgWith(1, null, @redis_version)
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@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
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@DocOpsManager._appendDocOpsInMongo = sinon.stub().callsArg(3)
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@DocOpsManager.flushDocOpsToMongo @project_id, @doc_id, @callback
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it "should call the callback with an error", ->
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@callback.calledWith(new Error("inconsistet versions")).should.equal true
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it "should log an error", ->
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@logger.error
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.calledWith(doc_id: @doc_id, mongoVersion: @mongo_version, redisVersion: @redis_version, "mongo version is ahead of redis")
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.should.equal true
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it "should not modify mongo", ->
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@DocOpsManager._appendDocOpsInMongo.called.should.equal false
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it "should time the execution", ->
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@Metrics.Timer::done.called.should.equal true
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describe "getPreviousDocOps", ->
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beforeEach ->
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@ops = [ "mock-op-1", "mock-op-2" ]
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@start = 30
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@end = 32
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@RedisManager.getPreviousDocOps = sinon.stub().callsArgWith(3, null, @ops)
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@DocOpsManager._ensureOpsAreLoaded = sinon.stub().callsArg(3)
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@DocOpsManager.getPreviousDocOps @project_id, @doc_id, @start, @end, @callback
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it "should ensure the ops are loaded back far enough", ->
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@DocOpsManager._ensureOpsAreLoaded
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.calledWith(@project_id, @doc_id, @start)
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.should.equal true
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it "should get the previous doc ops", ->
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@RedisManager.getPreviousDocOps
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.calledWith(@doc_id, @start, @end)
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.should.equal true
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it "should call the callback with the ops", ->
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@callback.calledWith(null, @ops).should.equal true
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it "should time the execution", ->
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@Metrics.Timer::done.called.should.equal true
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describe "_ensureOpsAreLoaded", ->
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describe "when the ops are not loaded", ->
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beforeEach ->
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@redisVersion = 42
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@redisOpsLength = 10
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@backToVersion = 30
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@ops = [ "mock-op-1", "mock-op-2" ]
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@RedisManager.getDocVersion = sinon.stub().callsArgWith(1, null, @redisVersion)
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@RedisManager.getDocOpsLength = sinon.stub().callsArgWith(1, null, @redisOpsLength)
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@DocOpsManager._getDocOpsFromMongo = sinon.stub().callsArgWith(3, null, @ops)
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@RedisManager.prependDocOps = sinon.stub().callsArgWith(2, null)
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@DocOpsManager._ensureOpsAreLoaded @project_id, @doc_id, @backToVersion, @callback
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it "should get the doc version from redis", ->
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@RedisManager.getDocVersion
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.calledWith(@doc_id)
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.should.equal true
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it "should get the doc ops length in redis", ->
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@RedisManager.getDocOpsLength
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.calledWith(@doc_id)
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.should.equal true
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it "should get the doc ops that need loading from Mongo", ->
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@DocOpsManager._getDocOpsFromMongo
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.calledWith(@doc_id, @backToVersion, @redisVersion - @redisOpsLength)
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.should.equal true
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it "should prepend the retrieved ops to redis", ->
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@RedisManager.prependDocOps
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.calledWith(@doc_id, @ops)
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.should.equal true
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it "should call the callback", ->
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@callback.called.should.equal true
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describe "when the ops are loaded", ->
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beforeEach ->
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@redisVersion = 42
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@redisOpsLength = 10
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@backToVersion = 35
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@RedisManager.getDocVersion = sinon.stub().callsArgWith(1, null, @redisVersion)
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@RedisManager.getDocOpsLength = sinon.stub().callsArgWith(1, null, @redisOpsLength)
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@DocOpsManager._getDocOpsFromMongo = sinon.stub().callsArgWith(3, null, @ops)
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@RedisManager.prependDocOps = sinon.stub().callsArgWith(2, null)
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@DocOpsManager._ensureOpsAreLoaded @project_id, @doc_id, @backToVersion, @callback
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it "should not need to get the docs from Mongo or put any into redis", ->
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@DocOpsManager._getDocOpsFromMongo.called.should.equal false
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@RedisManager.prependDocOps.called.should.equal false
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it "should call the callback", ->
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@callback.called.should.equal true
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describe "getDocVersionInMongo", ->
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describe "when the doc exists", ->
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beforeEach ->
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@doc =
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version: @version = 42
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@db.docOps.find = sinon.stub().callsArgWith(2, null, [@doc])
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@DocOpsManager.getDocVersionInMongo @doc_id, @callback
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it "should look for the doc in the database", ->
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@db.docOps.find
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.calledWith({ doc_id: ObjectId(@doc_id) }, {version: 1})
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.should.equal true
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it "should call the callback with the version", ->
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@callback.calledWith(null, @version).should.equal true
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describe "when the doc doesn't exist", ->
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beforeEach ->
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@db.docOps.find = sinon.stub().callsArgWith(2, null, [])
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@DocOpsManager.getDocVersionInMongo @doc_id, @callback
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it "should call the callback with 0", ->
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@callback.calledWith(null, 0).should.equal true
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describe "_appendDocOpsInMongo", ->
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describe "with a small set of updates", ->
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beforeEach (done) ->
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@ops = [ "mock-op-1", "mock-op-2" ]
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@version = 42
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@db.docOps.update = sinon.stub().callsArg(3)
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@DocOpsManager._appendDocOpsInMongo @doc_id, @ops, @version, (error) =>
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@callback(error)
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done()
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it "should update the database", ->
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@db.docOps.update
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.calledWith({
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doc_id: ObjectId(@doc_id)
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}, {
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$push: docOps: { $each: @ops, $slice: -100 }
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$set: version: @version
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}, {
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upsert: true
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})
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.should.equal true
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it "should call the callbak", ->
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@callback.called.should.equal true
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describe "with a large set of updates", ->
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beforeEach (done) ->
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@ops = [ "mock-op-1", "mock-op-2", "mock-op-3", "mock-op-4", "mock-op-5" ]
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@version = 42
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@DocOpsManager.APPEND_OPS_BATCH_SIZE = 2
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@db.docOps.update = sinon.stub().callsArg(3)
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@DocOpsManager._appendDocOpsInMongo @doc_id, @ops, @version, (error) =>
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@callback(error)
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done()
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it "should update the database in batches", ->
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@db.docOps.update
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.calledWith({ doc_id: ObjectId(@doc_id) }, {
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$push: docOps: { $each: @ops.slice(0,2), $slice: -100 }
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$set: version: @version - 3
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}, { upsert: true })
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.should.equal true
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@db.docOps.update
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.calledWith({ doc_id: ObjectId(@doc_id) }, {
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$push: docOps: { $each: @ops.slice(2,4), $slice: -100 }
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$set: version: @version - 1
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}, { upsert: true })
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.should.equal true
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@db.docOps.update
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.calledWith({ doc_id: ObjectId(@doc_id) }, {
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$push: docOps: { $each: @ops.slice(4,5), $slice: -100 }
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$set: version: @version
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}, { upsert: true })
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.should.equal true
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it "should call the callbak", ->
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@callback.called.should.equal true
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describe "with no updates", ->
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beforeEach (done) ->
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@ops = []
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@version = 42
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@db.docOps.update = sinon.stub().callsArg(3)
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@DocOpsManager._appendDocOpsInMongo @doc_id, @ops, @version, (error) =>
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@callback(error)
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done()
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it "should not try to update the database", ->
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@db.docOps.update.called.should.equal false
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describe "_getDocsOpsFromMongo", ->
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beforeEach ->
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@version = 42
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@start = 32
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@limit = 5
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@doc =
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docOps: ["mock-ops"]
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@DocOpsManager.getDocVersionInMongo = sinon.stub().callsArgWith(1, null, @version)
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@db.docOps.find = sinon.stub().callsArgWith(2, null, [@doc])
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@DocOpsManager._getDocOpsFromMongo @doc_id, @start, @start + @limit, @callback
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it "should get the current version", ->
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@DocOpsManager.getDocVersionInMongo
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.calledWith(@doc_id)
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.should.equal true
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it "should get the doc ops", ->
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@db.docOps.find
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.calledWith({ doc_id: ObjectId(@doc_id) }, {
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docOps: $slice: [-(@version - @start), @limit]
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})
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.should.equal true
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it "should return the ops", ->
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@callback.calledWith(null, @doc.docOps).should.equal true
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describe "pushDocOp", ->
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beforeEach ->
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@op = "mock-op"
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@RedisManager.pushDocOp = sinon.stub().callsArgWith(2, null, @version = 42)
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@TrackChangesManager.pushUncompressedHistoryOp = sinon.stub().callsArg(3)
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@DocOpsManager.pushDocOp @project_id, @doc_id, @op, @callback
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it "should push the op in to the docOps list", ->
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@RedisManager.pushDocOp
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.calledWith(@doc_id, @op)
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.should.equal true
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it "should push the op into the pushUncompressedHistoryOp", ->
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@TrackChangesManager.pushUncompressedHistoryOp
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.calledWith(@project_id, @doc_id, @op)
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.should.equal true
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it "should call the callback with the version", ->
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@callback.calledWith(null, @version).should.equal true
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