overleaf/services/track-changes/test/unit/coffee/UpdatesManager/UpdatesManagerTests.coffee
2014-03-05 15:59:40 +00:00

221 lines
8.3 KiB
CoffeeScript

sinon = require('sinon')
chai = require('chai')
should = chai.should()
expect = chai.expect
modulePath = "../../../../app/js/UpdatesManager.js"
SandboxedModule = require('sandboxed-module')
describe "UpdatesManager", ->
beforeEach ->
@UpdatesManager = SandboxedModule.require modulePath, requires:
"./UpdateCompressor": @UpdateCompressor = {}
"./MongoManager" : @MongoManager = {}
"./RedisManager" : @RedisManager = {}
"./LockManager" : @LockManager = {}
"logger-sharelatex": { log: sinon.stub(), error: sinon.stub() }
@doc_id = "doc-id-123"
@callback = sinon.stub()
describe "compressAndSaveRawUpdates", ->
describe "when there are no raw ops", ->
beforeEach ->
@MongoManager.popLastCompressedUpdate = sinon.stub()
@MongoManager.insertCompressedUpdates = sinon.stub()
@UpdatesManager.compressAndSaveRawUpdates @doc_id, [], @callback
it "should not need to access the database", ->
@MongoManager.popLastCompressedUpdate.called.should.equal false
@MongoManager.insertCompressedUpdates.called.should.equal false
it "should call the callback", ->
@callback.called.should.equal true
describe "when there is no compressed history to begin with", ->
beforeEach ->
@rawUpdates = [{ v: 12, op: "mock-op-12" }, { v: 13, op: "mock-op-13" }]
@compressedUpdates = { v: 13, op: "compressed-op-12" }
@MongoManager.popLastCompressedUpdate = sinon.stub().callsArgWith(1, null, null)
@MongoManager.insertCompressedUpdates = sinon.stub().callsArg(2)
@UpdateCompressor.compressRawUpdates = sinon.stub().returns(@compressedUpdates)
@UpdatesManager.compressAndSaveRawUpdates @doc_id, @rawUpdates, @callback
it "should try to pop the last compressed op", ->
@MongoManager.popLastCompressedUpdate
.calledWith(@doc_id)
.should.equal true
it "should compress the raw ops", ->
@UpdateCompressor.compressRawUpdates
.calledWith(null, @rawUpdates)
.should.equal true
it "should save the compressed ops", ->
@MongoManager.insertCompressedUpdates
.calledWith(@doc_id, @compressedUpdates)
.should.equal true
it "should call the callback", ->
@callback.called.should.equal true
describe "when the raw ops need appending to existing history", ->
beforeEach ->
@lastCompressedUpdate = { v: 11, op: "compressed-op-11" }
@compressedUpdates = { v: 13, op: "compressed-op-12" }
@MongoManager.popLastCompressedUpdate = sinon.stub().callsArgWith(1, null, @lastCompressedUpdate)
@MongoManager.insertCompressedUpdates = sinon.stub().callsArg(2)
@UpdateCompressor.compressRawUpdates = sinon.stub().returns(@compressedUpdates)
describe "when the raw ops start where the existing history ends", ->
beforeEach ->
@rawUpdates = [{ v: 12, op: "mock-op-12" }, { v: 13, op: "mock-op-13" }]
@UpdatesManager.compressAndSaveRawUpdates @doc_id, @rawUpdates, @callback
it "should try to pop the last compressed op", ->
@MongoManager.popLastCompressedUpdate
.calledWith(@doc_id)
.should.equal true
it "should compress the last compressed op and the raw ops", ->
@UpdateCompressor.compressRawUpdates
.calledWith(@lastCompressedUpdate, @rawUpdates)
.should.equal true
it "should save the compressed ops", ->
@MongoManager.insertCompressedUpdates
.calledWith(@doc_id, @compressedUpdates)
.should.equal true
it "should call the callback", ->
@callback.called.should.equal true
describe "when some raw ops are passed that have already been compressed", ->
beforeEach ->
@rawUpdates = [{ v: 10, op: "mock-op-10" }, { v: 11, op: "mock-op-11"}, { v: 12, op: "mock-op-12" }, { v: 13, op: "mock-op-13" }]
@UpdatesManager.compressAndSaveRawUpdates @doc_id, @rawUpdates, @callback
it "should only compress the more recent raw ops", ->
@UpdateCompressor.compressRawUpdates
.calledWith(@lastCompressedUpdate, @rawUpdates.slice(-2))
.should.equal true
describe "when the raw ops do not follow from the last compressed op version", ->
beforeEach ->
@rawUpdates = [{ v: 13, op: "mock-op-13" }]
@UpdatesManager.compressAndSaveRawUpdates @doc_id, @rawUpdates, @callback
it "should call the callback with an error", ->
@callback
.calledWith(new Error("Tried to apply raw op at version 13 to last compressed update with version 11"))
.should.equal true
it "should put the popped update back into mongo", ->
@MongoManager.insertCompressedUpdates.calledOnce.should.equal true
@MongoManager.insertCompressedUpdates
.calledWith(@doc_id, [@lastCompressedUpdate])
.should.equal true
describe "processUncompressedUpdates", ->
describe "when there is fewer than one batch to send", ->
beforeEach ->
@updates = ["mock-update"]
@RedisManager.getOldestRawUpdates = sinon.stub().callsArgWith(2, null, @updates)
@UpdatesManager.compressAndSaveRawUpdates = sinon.stub().callsArgWith(2)
@RedisManager.deleteOldestRawUpdates = sinon.stub().callsArg(2)
@UpdatesManager.processUncompressedUpdates @doc_id, @callback
it "should get the oldest updates", ->
@RedisManager.getOldestRawUpdates
.calledWith(@doc_id, @UpdatesManager.REDIS_READ_BATCH_SIZE)
.should.equal true
it "should compress and save the updates", ->
@UpdatesManager.compressAndSaveRawUpdates
.calledWith(@doc_id, @updates)
.should.equal true
it "should delete the batch of uncompressed updates that was just processed", ->
@RedisManager.deleteOldestRawUpdates
.calledWith(@doc_id, @updates.length)
.should.equal true
it "should call the callback", ->
@callback.called.should.equal true
describe "when there are multiple batches to send", ->
beforeEach (done) ->
@UpdatesManager.REDIS_READ_BATCH_SIZE = 2
@updates = ["mock-update-0", "mock-update-1", "mock-update-2", "mock-update-3", "mock-update-4"]
@redisArray = @updates.slice()
@RedisManager.getOldestRawUpdates = (doc_id, batchSize, callback = (error, updates) ->) =>
updates = @redisArray.slice(0, batchSize)
@redisArray = @redisArray.slice(batchSize)
callback null, updates
sinon.spy @RedisManager, "getOldestRawUpdates"
@UpdatesManager.compressAndSaveRawUpdates = sinon.stub().callsArgWith(2)
@RedisManager.deleteOldestRawUpdates = sinon.stub().callsArg(2)
@UpdatesManager.processUncompressedUpdates @doc_id, (args...) =>
@callback(args...)
done()
it "should get the oldest updates in three batches ", ->
@RedisManager.getOldestRawUpdates.callCount.should.equal 3
it "should compress and save the updates in batches", ->
@UpdatesManager.compressAndSaveRawUpdates
.calledWith(@doc_id, @updates.slice(0,2))
.should.equal true
@UpdatesManager.compressAndSaveRawUpdates
.calledWith(@doc_id, @updates.slice(2,4))
.should.equal true
@UpdatesManager.compressAndSaveRawUpdates
.calledWith(@doc_id, @updates.slice(4,5))
.should.equal true
it "should delete the batches of uncompressed updates", ->
@RedisManager.deleteOldestRawUpdates.callCount.should.equal 3
it "should call the callback", ->
@callback.called.should.equal true
describe "processCompressedUpdatesWithLock", ->
beforeEach ->
@UpdatesManager.processUncompressedUpdates = sinon.stub().callsArg(2)
@LockManager.runWithLock = sinon.stub().callsArg(2)
@UpdatesManager.processUncompressedUpdatesWithLock @doc_id, @callback
it "should run processUncompressedUpdates with the lock", ->
@LockManager.runWithLock
.calledWith(
"HistoryLock:#{@doc_id}"
)
.should.equal true
it "should call the callback", ->
@callback.called.should.equal true
describe "getUpdates", ->
beforeEach ->
@updates = ["mock-updates"]
@options = { to: "mock-to", limit: "mock-limit" }
@MongoManager.getUpdates = sinon.stub().callsArgWith(2, null, @updates)
@UpdatesManager.processUncompressedUpdatesWithLock = sinon.stub().callsArg(1)
@UpdatesManager.getUpdates @doc_id, @options, @callback
it "should process outstanding updates", ->
@UpdatesManager.processUncompressedUpdatesWithLock
.calledWith(@doc_id)
.should.equal true
it "should get the updates from the database", ->
@MongoManager.getUpdates
.calledWith(@doc_id, @options)
.should.equal true
it "should return the updates", ->
@callback
.calledWith(null, @updates)
.should.equal true