overleaf/services/real-time/test/unit/coffee/DocumentUpdaterManagerTests.coffee

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require('chai').should()
sinon = require("sinon")
SandboxedModule = require('sandboxed-module')
path = require "path"
modulePath = '../../../app/js/DocumentUpdaterManager'
describe 'DocumentUpdaterManager', ->
beforeEach ->
@project_id = "project-id-923"
@doc_id = "doc-id-394"
@lines = ["one", "two", "three"]
@version = 42
@settings =
apis: documentupdater: url: "http://doc-updater.example.com"
redis: documentupdater:
key_schema:
pendingUpdates: ({doc_id}) -> "PendingUpdates:#{doc_id}"
@rclient = {auth:->}
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@DocumentUpdaterManager = SandboxedModule.require modulePath, requires:
'settings-sharelatex':@settings
'logger-sharelatex': @logger = {log: sinon.stub(), error: sinon.stub(), warn: sinon.stub()}
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'request': @request = {}
'redis-sharelatex' : createClient: () => @rclient
'metrics-sharelatex': @Metrics =
Timer: class Timer
done: () ->
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describe "getDocument", ->
beforeEach ->
@callback = sinon.stub()
describe "successfully", ->
beforeEach ->
@body = JSON.stringify
lines: @lines
version: @version
ops: @ops = ["mock-op-1", "mock-op-2"]
ranges: @ranges = {"mock": "ranges"}
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@fromVersion = 2
@request.get = sinon.stub().callsArgWith(1, null, {statusCode: 200}, @body)
@DocumentUpdaterManager.getDocument @project_id, @doc_id, @fromVersion, @callback
it 'should get the document from the document updater', ->
url = "#{@settings.apis.documentupdater.url}/project/#{@project_id}/doc/#{@doc_id}?fromVersion=#{@fromVersion}"
@request.get.calledWith(url).should.equal true
it "should call the callback with the lines, version, ranges and ops", ->
@callback.calledWith(null, @lines, @version, @ranges, @ops).should.equal true
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describe "when the document updater API returns an error", ->
beforeEach ->
@request.get = sinon.stub().callsArgWith(1, @error = new Error("something went wrong"), null, null)
@DocumentUpdaterManager.getDocument @project_id, @doc_id, @fromVersion, @callback
it "should return an error to the callback", ->
@callback.calledWith(@error).should.equal true
describe "when the document updater returns a 422 status code", ->
beforeEach ->
@request.get = sinon.stub().callsArgWith(1, null, { statusCode: 422 }, "")
@DocumentUpdaterManager.getDocument @project_id, @doc_id, @fromVersion, @callback
it "should return the callback with an error", ->
err = new Error("doc updater could not load requested ops")
err.statusCode = 422
@callback
.calledWith(err)
.should.equal true
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describe "when the document updater returns a failure error code", ->
beforeEach ->
@request.get = sinon.stub().callsArgWith(1, null, { statusCode: 500 }, "")
@DocumentUpdaterManager.getDocument @project_id, @doc_id, @fromVersion, @callback
it "should return the callback with an error", ->
err = new Error("doc updater returned failure status code: 500")
err.statusCode = 500
@callback
.calledWith(err)
.should.equal true
describe 'flushProjectToMongoAndDelete', ->
beforeEach ->
@callback = sinon.stub()
describe "successfully", ->
beforeEach ->
@request.del = sinon.stub().callsArgWith(1, null, {statusCode: 204}, "")
@DocumentUpdaterManager.flushProjectToMongoAndDelete @project_id, @callback
it 'should delete the project from the document updater', ->
url = "#{@settings.apis.documentupdater.url}/project/#{@project_id}"
@request.del.calledWith(url).should.equal true
it "should call the callback with no error", ->
@callback.calledWith(null).should.equal true
describe "when the document updater API returns an error", ->
beforeEach ->
@request.del = sinon.stub().callsArgWith(1, @error = new Error("something went wrong"), null, null)
@DocumentUpdaterManager.flushProjectToMongoAndDelete @project_id, @callback
it "should return an error to the callback", ->
@callback.calledWith(@error).should.equal true
describe "when the document updater returns a failure error code", ->
beforeEach ->
@request.del = sinon.stub().callsArgWith(1, null, { statusCode: 500 }, "")
@DocumentUpdaterManager.flushProjectToMongoAndDelete @project_id, @callback
it "should return the callback with an error", ->
err = new Error("doc updater returned failure status code: 500")
err.statusCode = 500
@callback
.calledWith(err)
.should.equal true
describe 'queueChange', ->
beforeEach ->
@change = {
"action":"removeText",
"range":{"start":{"row":2,"column":2},"end":{"row":2,"column":3}},
"text":"e"
}
@rclient.rpush = sinon.stub().yields()
@callback = sinon.stub()
describe "successfully", ->
beforeEach ->
@DocumentUpdaterManager.queueChange(@project_id, @doc_id, @change, @callback)
it "should push the change", ->
@rclient.rpush
.calledWith("PendingUpdates:#{@doc_id}", JSON.stringify(@change))
.should.equal true
it "should notify the doc updater of the change via the pending-updates-list queue", ->
@rclient.rpush
.calledWith("pending-updates-list", "#{@project_id}:#{@doc_id}")
.should.equal true
describe "with error talking to redis during rpush", ->
beforeEach ->
@rclient.rpush = sinon.stub().yields(new Error("something went wrong"))
@DocumentUpdaterManager.queueChange(@project_id, @doc_id, @change, @callback)
it "should return an error", ->
@callback.calledWithExactly(sinon.match(Error)).should.equal true