How to unit test angularjs route's resolve with karma and mocha+chai? -

i working on app need resolve promises in router (ngroute). problem not sure how write unit tests this, using karma mocha , chai.

here part of code i'd test:

function config ($routeprovider) {     $routeprovider         .when('/', {              templateurl: 'views/orders.html',              controller: 'ordercontroller',              controlleras: 'vmr',              resolve: ordercontroller.resolve,              data: {...}     }); }  function ordercontroller (orderservice, neworders) {     this.neworders = neworders; }  ordercontroller.resolve = {     neworders: function (orderservice) {         return orderservice.getorders();     } }; 

this how started write unit tests when didn't have resolve part yet:

describe('ordercontroller', function() {      'use strict';      var controller,         service,         httpbackend;      beforeeach(module('myapp.orders'));      beforeeach(inject(function($controller, _orderservice_, $httpbackend) {         service = _orderservice_;         httpbackend = $httpbackend;         // create controller         controller = $controller('ordercontroller', {});     }));      beforeeach(function() {         httpbackend.when('get', 'url/to/get/orders')             .respond(200, {[...]});     });      aftereach(function() {         httpbackend.verifynooutstandingexpectation();         httpbackend.verifynooutstandingrequest();     });      it('should list of new orders', function() {         httpbackend.flush();         expect(controller.neworders).not.to.undefined;         expect(controller.neworders.length).to.equal(3);     }); }); 

at point getting error:

unknown provider: newordersprovider <- neworders

i understand why error, don't know how solve it. don't know how test promise resolves in route.

thanks in advance help!

after lot of searching , reading angularjs testing cookbook find out how inject result of promise in controller. main code doesn't change, post here update code unit tests:

describe('ordercontroller', function() {      'use strict';      var controller,         service,         httpbackend;      // here inject new value     beforeeach(function() {         module('myapp.orders', function($provide) {             $provide.value('resolver', {                 neworders: function(service) {                     return service.getorders();                 }             });         });     });      beforeeach(inject(function($controller, _orderservice_, $httpbackend, resolver) {         service = _orderservice_;         httpbackend = $httpbackend;         // create controller         controller = $controller('ordercontroller', {             // add them controller             neworders: resolver.neworders(service)         });     }));      beforeeach(function() {         httpbackend.when('get', 'url/to/get/orders')             .respond(200, {[...]});     });      aftereach(function() {         httpbackend.verifynooutstandingexpectation();         httpbackend.verifynooutstandingrequest();     });      it('should list of new orders', function() {         httpbackend.flush();         expect(controller.neworders).not.to.undefined;         expect(controller.neworders.length).to.equal(3);     }); }); 

if has better/different solution i'd hear well!