Add basic BetaProgram feature.

services/web/test/UnitTests/coffee/BetaProgram/BetaProgramControllerTests.coffee

@@ -0,0 +1,101 @@
+should = require('chai').should()
+SandboxedModule = require('sandboxed-module')
+assert = require('assert')
+path = require('path')
+sinon = require('sinon')
+modulePath = path.join __dirname, "../../../../app/js/Features/BetaProgram/BetaProgramController"
+expect = require("chai").expect
+
+describe "BetaProgramController", ->
+
+	beforeEach ->
+		@user =
+			_id: @user_id = "a_simple_id"
+			email: "user@example.com"
+			features: {}
+			betaProgram: false
+		@req =
+			query: {}
+			session:
+				user: @user
+		@BetaProgramController = SandboxedModule.require modulePath, requires:
+			"./BetaProgramHandler": @BetaProgramHandler = {
+				optIn: sinon.stub()
+			},
+			"../User/UserLocator": @UserLocator = {
+				findById: sinon.stub()
+			},
+			"settings-sharelatex": @settings = {
+				languages: {}
+			}
+			"logger-sharelatex": @logger = {
+				log: sinon.stub()
+				err: sinon.stub()
+				error: sinon.stub()
+			}
+		@res =
+			send: sinon.stub()
+			redirect: sinon.stub()
+			render: sinon.stub()
+		@next = sinon.stub()
+
+	describe "optIn", ->
+
+		beforeEach ->
+			@BetaProgramHandler.optIn.callsArgWith(1, null)
+
+		it "should redirect to '/'", () ->
+			@BetaProgramController.optIn @req, @res, @next
+			@res.redirect.callCount.should.equal 1
+
+		it "should not call next with an error", () ->
+			@BetaProgramController.optIn @req, @res, @next
+			@next.callCount.should.equal 0
+
+		it "should not call next with an error", () ->
+			@BetaProgramController.optIn @req, @res, @next
+			@next.callCount.should.equal 0
+
+		it "should call BetaProgramHandler.optIn", () ->
+			@BetaProgramController.optIn @req, @res, @next
+			@BetaProgramHandler.optIn.callCount.should.equal 1
+
+		describe "when BetaProgramHandler.opIn produces an error", ->
+
+			beforeEach ->
+				@BetaProgramHandler.optIn.callsArgWith(1, new Error('woops'))
+
+			it "should not redirect to '/'", () ->
+				@BetaProgramController.optIn @req, @res, @next
+				@res.redirect.callCount.should.equal 0
+
+			it "should produce an error", () ->
+				@BetaProgramController.optIn @req, @res, @next
+				@next.callCount.should.equal 1
+				@next.firstCall.args[0].should.be.instanceof Error
+
+	describe "optInPage", ->
+
+		beforeEach ->
+			@UserLocator.findById.callsArgWith(1, null, @user)
+
+		it "should render the opt-in page", () ->
+			@BetaProgramController.optInPage @req, @res, @next
+			@res.render.callCount.should.equal 1
+			args = @res.render.firstCall.args
+			args[0].should.equal 'beta_program/opt_in'
+
+
+		describe "when UserLocator.findById produces an error", ->
+
+			beforeEach ->
+				@UserLocator.findById.callsArgWith(1, new Error('woops'))
+
+			it "should not render the opt-in page", () ->
+				@BetaProgramController.optInPage @req, @res, @next
+				@res.render.callCount.should.equal 0
+
+			it "should produce an error", () ->
+				@BetaProgramController.optInPage @req, @res, @next
+				@next.callCount.should.equal 1
+				@next.firstCall.args[0].should.be.instanceof Error