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

chai = require('chai')
should = chai.should()
sinon = require("sinon")
modulePath = "../../../app/js/WebsocketController.js"
SandboxedModule = require('sandboxed-module')
tk = require "timekeeper"

describe 'WebsocketController', ->
	beforeEach ->
		tk.freeze(new Date())
		@project_id = "project-id-123"
		@user = {
			_id: "user-id-123"
			first_name: "James"
			last_name: "Allen"
			email: "james@example.com"
			signUpDate: new Date("2014-01-01")
			loginCount: 42
		}
		@callback = sinon.stub()
		@client =
			params: {}
			set: sinon.stub()
			get: (param, cb) -> cb null, @params[param]
			join: sinon.stub()
			leave: sinon.stub()
		@WebsocketController = SandboxedModule.require modulePath, requires:
			"./WebApiManager": @WebApiManager = {}
			"./AuthorizationManager": @AuthorizationManager = {}
			"./DocumentUpdaterManager": @DocumentUpdaterManager = {}
			"logger-sharelatex": @logger = { log: sinon.stub(), error: sinon.stub() }
	
	afterEach ->
		tk.reset()
	
	describe "joinProject", ->
		describe "when authorised", ->
			beforeEach ->
				@project = {
					name: "Test Project"
					owner: {
						_id: @owner_id = "mock-owner-id-123"
					}
				}
				@privilegeLevel = "owner"
				@WebApiManager.joinProject = sinon.stub().callsArgWith(2, null, @project, @privilegeLevel)
				@WebsocketController.joinProject @client, @user, @project_id, @callback
				
			it "should load the project from web", ->
				@WebApiManager.joinProject
					.calledWith(@project_id, @user._id)
					.should.equal true
					
			it "should set the privilege level on the client", ->
				@client.set.calledWith("privilege_level", @privilegeLevel).should.equal true
					
			it "should set the user's id on the client", ->
				@client.set.calledWith("user_id", @user._id).should.equal true
					
			it "should set the user's email on the client", ->
				@client.set.calledWith("email", @user.email).should.equal true
					
			it "should set the user's first_name on the client", ->
				@client.set.calledWith("first_name", @user.first_name).should.equal true
				
			it "should set the user's last_name on the client", ->
				@client.set.calledWith("last_name", @user.last_name).should.equal true
					
			it "should set the user's sign up date on the client", ->
				@client.set.calledWith("signup_date", @user.signUpDate).should.equal true
					
			it "should set the user's login_count on the client", ->
				@client.set.calledWith("login_count", @user.loginCount).should.equal true
				
			it "should set the connected time on the client", ->
				@client.set.calledWith("connected_time", new Date()).should.equal true
				
			it "should set the project_id on the client", ->
				@client.set.calledWith("project_id", @project_id).should.equal true
				
			it "should set the project owner id on the client", ->
				@client.set.calledWith("owner_id", @owner_id).should.equal true
				
			it "should call the callback with the project, privilegeLevel and protocolVersion", ->
				@callback
					.calledWith(null, @project, @privilegeLevel, @WebsocketController.PROTOCOL_VERSION)
					.should.equal true
				
		describe "when not authorized", ->
			beforeEach ->
				@WebApiManager.joinProject = sinon.stub().callsArgWith(2, null, null, null)
				@WebsocketController.joinProject @client, @user, @project_id, @callback

			it "should return an error", ->
				@callback
					.calledWith(new Error("not authorized"))
					.should.equal true
					
	describe "joinDoc", ->
		beforeEach ->
			@doc_id = "doc-id-123"
			@doc_lines = ["doc", "lines"]
			@version = 42
			@ops = ["mock", "ops"]
			
			@client.params.project_id = @project_id
			
			@AuthorizationManager.assertClientCanViewProject = sinon.stub().callsArgWith(1, null)
			@DocumentUpdaterManager.getDocument = sinon.stub().callsArgWith(3, null, @doc_lines, @version, @ops)
			
		describe "with a fromVersion", ->
			beforeEach ->
				@fromVersion = 40
				@WebsocketController.joinDoc @client, @doc_id, @fromVersion, @callback
				
			it "should check that the client is authorized to view the project", ->
				@AuthorizationManager.assertClientCanViewProject
					.calledWith(@client)
					.should.equal true
					
			it "should get the document from the DocumentUpdaterManager", ->
				@DocumentUpdaterManager.getDocument
					.calledWith(@project_id, @doc_id, @fromVersion)
					.should.equal true
					
			it "should join the client to room for the doc_id", ->
				@client.join
					.calledWith(@doc_id)
					.should.equal true
					
			it "should call the callback with the lines, version and ops", ->
				@callback
					.calledWith(null, @doc_lines, @version, @ops)
					.should.equal true
					
		describe "with doclines that need escaping", ->
			beforeEach ->
				@doc_lines.push ["räksmörgås"]
				@WebsocketController.joinDoc @client, @doc_id, -1, @callback
						
			it "should call the callback with the escaped lines", ->
				escaped_lines = @callback.args[0][1]
				escaped_word = escaped_lines.pop()
				escaped_word.should.equal 'räksmörgås'
				# Check that unescaping works
				decodeURIComponent(escape(escaped_word)).should.equal "räksmörgås"
				
		describe "when not authorized", ->
			beforeEach ->
				@AuthorizationManager.assertClientCanViewProject = sinon.stub().callsArgWith(1, @err = new Error("not authorized"))
				@WebsocketController.joinDoc @client, @doc_id, -1, @callback
				
			it "should call the callback with an error", ->
				@callback.calledWith(@err).should.equal true
			
			it "should not call the DocumentUpdaterManager", ->
				@DocumentUpdaterManager.getDocument.called.should.equal false
				
	describe "leaveDoc", ->
		beforeEach ->
			@doc_id = "doc-id-123"			
			@client.params.project_id = @project_id
			@WebsocketController.leaveDoc @client, @doc_id, @callback
			
		it "should remove the client from the doc_id room", ->
			@client.leave
				.calledWith(@doc_id).should.equal true
				
		it "should call the callback", ->
			@callback.called.should.equal true