add in acceptance tests

services/contacts/app.coffee

@@ -16,8 +16,8 @@ app = express()
 
 app.use Metrics.http.monitor(logger)
 
-app.get  '/user/:user_id/contacts', HttpController.getUserContacts
-app.post '/user/:user_id/contacts', bodyParser.json(limit: "2mb"), HttpController.addUserContacts
+app.get  '/user/:user_id/contacts', HttpController.getContacts
+app.post '/user/:user_id/contacts', bodyParser.json(limit: "2mb"), HttpController.addContact
 
 app.get '/status', (req, res)->
 	res.send('contacts is alive')
@@ -33,4 +33,4 @@ port = Settings.internal.contacts.port
 host = Settings.internal.contacts.host
 app.listen port, host, (error) ->
 	throw error if error?
-	logger.info "Docstore starting up, listening on #{host}:#{port}"
+	logger.info "contacts starting up, listening on #{host}:#{port}"

services/contacts/config/settings.defaults.coffee

@@ -3,8 +3,9 @@ http.globalAgent.maxSockets = 300
 
 module.exports =
 	internal:
-		port: 3036
-		host: "localhost"
+		contacts:
+			port: 3036
+			host: "localhost"
 
 	mongo:
 		url: 'mongodb://127.0.0.1/sharelatex'

services/contacts/test/acceptance/coffee/GettingContactsTests.coffee

@@ -0,0 +1,69 @@
+sinon = require "sinon"
+chai = require("chai")
+chai.should()
+expect = chai.expect
+ObjectId = require("mongojs").ObjectId
+request = require "request"
+async = require "async"
+
+HOST = "http://localhost:3036"
+
+describe "Getting Contacts", ->
+	describe "with no contacts", ->
+		beforeEach ->
+			@user_id = ObjectId().toString()
+		
+		it "should return an empty array", (done) ->
+			request {
+				method: "GET"
+				url: "#{HOST}/user/#{@user_id}/contacts"
+				json: true
+			}, (error, response, body) ->
+				response.statusCode.should.equal 200
+				body.contact_ids.should.deep.equal []
+				done()
+		
+	describe "with contacts", ->
+		beforeEach (done) ->
+			@user_id = ObjectId().toString()
+			@contact_id_1 = ObjectId().toString()
+			@contact_id_2 = ObjectId().toString()
+			@contact_id_3 = ObjectId().toString()
+			
+			touchContact = (user_id, contact_id, cb) ->
+				request({
+					method: "POST"
+					url: "#{HOST}/user/#{user_id}/contacts"
+					json: {
+						contact_id: contact_id
+					}
+				}, cb)
+			
+			async.series [
+				# 2 is preferred since touched twice, then 3 since most recent, then 1
+				(cb) => touchContact @user_id, @contact_id_1, cb
+				(cb) => touchContact @user_id, @contact_id_2, cb
+				(cb) => touchContact @user_id, @contact_id_2, cb
+				(cb) => touchContact @user_id, @contact_id_3, cb
+			], done
+		
+		it "should return a sorted list of contacts", (done) ->
+			request {
+				method: "GET"
+				url: "#{HOST}/user/#{@user_id}/contacts"
+				json: true
+			}, (error, response, body) =>
+				response.statusCode.should.equal 200
+				body.contact_ids.should.deep.equal [@contact_id_2, @contact_id_3, @contact_id_1]
+				done()
+		
+		it "should respect a limit and only return top X contacts", ->
+			request {
+				method: "GET"
+				url: "#{HOST}/user/#{@user_id}/contacts?limit=2"
+				json: true
+			}, (error, response, body) =>
+				response.statusCode.should.equal 200
+				body.contact_ids.should.deep.equal [@contact_id_2, @contact_id_3]
+				done()
+