diff --git a/services/web/test/UnitTests/coffee/Labels/LabelsControllerTests.coffee b/services/web/test/UnitTests/coffee/Labels/LabelsControllerTests.coffee
new file mode 100644
index 0000000000..484631886f
--- /dev/null
+++ b/services/web/test/UnitTests/coffee/Labels/LabelsControllerTests.coffee
@@ -0,0 +1,119 @@
+chai = require('chai')
+chai.should()
+expect = chai.expect
+sinon = require("sinon")
+modulePath = "../../../../app/js/Features/Labels/LabelsController"
+SandboxedModule = require('sandboxed-module')
+
+
+describe 'LabelsController', ->
+	beforeEach ->
+		@projectId = 'somekindofid'
+		@EditorRealTimeController = {
+			emitToRoom: sinon.stub()
+		}
+		@LabelsHandler = {
+			getAllLabelsForProject: sinon.stub()
+			getLabelsForDoc: sinon.stub()
+		}
+		@LabelsController = SandboxedModule.require modulePath, requires:
+			'logger-sharelatex': {log: sinon.stub(), err: sinon.stub()}
+			'../Editor/EditorRealTimeController': @EditorRealTimeController
+			'./LabelsHandler': @LabelsHandler
+
+	describe 'getAllLabels', ->
+		beforeEach ->
+			@fakeLabels = {'somedoc': ['a_label']}
+			@LabelsHandler.getAllLabelsForProject = sinon.stub().callsArgWith(1, null, @fakeLabels)
+			@req = {params: {Project_id: @projectId}}
+			@res = {json: sinon.stub()}
+			@next = sinon.stub()
+
+		it 'should call LabelsHandler.getAllLabelsForProject', () ->
+			@LabelsController.getAllLabels(@req, @res, @next)
+			@LabelsHandler.getAllLabelsForProject.callCount.should.equal 1
+			@LabelsHandler.getAllLabelsForProject.calledWith(@projectId).should.equal true
+
+		it 'should call not call next with an error', () ->
+			@LabelsController.getAllLabels(@req, @res, @next)
+			@next.callCount.should.equal 0
+
+		it 'should send a json response', () ->
+			@LabelsController.getAllLabels(@req, @res, @next)
+			@res.json.callCount.should.equal 1
+			expect(@res.json.lastCall.args[0]).to.have.all.keys ['projectId', 'projectLabels']
+
+		describe 'when LabelsHandler.getAllLabelsForProject produces an error', ->
+			beforeEach ->
+				@LabelsHandler.getAllLabelsForProject = sinon.stub().callsArgWith(1, new Error('woops'))
+				@req = {params: {Project_id: @projectId}}
+				@res = {json: sinon.stub()}
+				@next = sinon.stub()
+
+			it 'should call LabelsHandler.getAllLabelsForProject', () ->
+				@LabelsController.getAllLabels(@req, @res, @next)
+				@LabelsHandler.getAllLabelsForProject.callCount.should.equal 1
+				@LabelsHandler.getAllLabelsForProject.calledWith(@projectId).should.equal true
+
+			it 'should call next with an error', ->
+				@LabelsController.getAllLabels(@req, @res, @next)
+				@next.callCount.should.equal 1
+				expect(@next.lastCall.args[0]).to.be.instanceof Error
+
+			it 'should not send a json response', ->
+				@LabelsController.getAllLabels(@req, @res, @next)
+				@res.json.callCount.should.equal 0
+
+	describe 'getLabelsForDoc', ->
+		beforeEach ->
+			@LabelsHandler.getLabelsForDoc = sinon.stub().callsArgWith(2, null, @fakeLabels)
+			@EditorRealTimeController.emitToRoom = sinon.stub()
+			@docId = 'somedoc'
+			@req = {params: {Project_id: @projectId, doc_id: @docId}}
+			@res = {json: sinon.stub()}
+			@next = sinon.stub()
+
+		it 'should call LabelsHandler.getLabelsForDoc', () ->
+			@LabelsController.getLabelsForDoc(@req, @res, @next)
+			@LabelsHandler.getLabelsForDoc.callCount.should.equal 1
+			@LabelsHandler.getLabelsForDoc.calledWith(@projectId).should.equal true
+
+		it 'should call not call next with an error', () ->
+			@LabelsController.getLabelsForDoc(@req, @res, @next)
+			@next.callCount.should.equal 0
+
+		it 'should send a json response', () ->
+			@LabelsController.getLabelsForDoc(@req, @res, @next)
+			@res.json.callCount.should.equal 1
+			expect(@res.json.lastCall.args[0]).to.have.all.keys ['projectId', 'docId', 'labels']
+
+		it 'should emit a message to room', () ->
+			@LabelsController.getLabelsForDoc(@req, @res, @next)
+			@EditorRealTimeController.emitToRoom.callCount.should.equal 1
+			lastCall = @EditorRealTimeController.emitToRoom.lastCall
+			expect(lastCall.args[0]).to.equal @projectId
+			expect(lastCall.args[1]).to.equal 'doc:labels:updated'
+			expect(lastCall.args[2]).to.have.all.keys ['docId', 'labels']
+
+		describe 'when LabelsHandler.getLabelsForDoc produces an error', ->
+			beforeEach ->
+				@LabelsHandler.getLabelsForDoc = sinon.stub().callsArgWith(2, new Error('woops'))
+				@EditorRealTimeController.emitToRoom = sinon.stub()
+				@docId = 'somedoc'
+				@req = {params: {Project_id: @projectId, doc_id: @docId}}
+				@res = {json: sinon.stub()}
+				@next = sinon.stub()
+
+			it 'should call LabelsHandler.getLabelsForDoc', () ->
+				@LabelsController.getLabelsForDoc(@req, @res, @next)
+				@LabelsHandler.getLabelsForDoc.callCount.should.equal 1
+				@LabelsHandler.getLabelsForDoc.calledWith(@projectId).should.equal true
+
+			it 'should call next with an error', ->
+				@LabelsController.getLabelsForDoc(@req, @res, @next)
+				@next.callCount.should.equal 1
+				expect(@next.lastCall.args[0]).to.be.instanceof Error
+
+			it 'should not send a json response', ->
+				@LabelsController.getLabelsForDoc(@req, @res, @next)
+				@res.json.callCount.should.equal 0