orderResource.js

define(['services/module', 'underscore'], function (module, _) {

    'use strict';

    function OrderResource($http, $q, link) {

// ... other functions removed: viewState, accessState, flattenResource
// viewState is a deeper resource
// accessState looks at the Accept headers
// flattenResource: flattens all of this for the client-side resource (in-memory model bound to view)

// only GET on collection exposed (rather than get on item)
      return {
        get: function (links, relationshipType, mediaType) {

          return link.get(links || 'HEAD', relationshipType || 'collection', mediaType).then(
            function success(response) {
              return $q.all(_.map(link.filter(response.data, 'item', mediaType), function (item) {
                  return $http.get(item.href, { headers: {accept: item.type}}).then(
                    function success(response) {
                      return $q.all([viewState(response.data, mediaType), accessState(response.headers())]).
                        then(flattenResource(response.data), error);
                    }, error)
                })).
                then(function (resources) {
                  return { items: resources, links: response.data.links};
                });
            },
            error);
        }
      }
    }

    return module.factory('OrderResource', ['$http', '$q', 'link', OrderResource]);

  }
);

semanticLink.spec.js

/*global describe beforeEach it expect inject module angular $ */
define(['chai', 'mocks', 'services/httpLink'],
  function (chai) {

    'use strict';
    var should = chai.should(), link, $httpBackend;

    describe('services/httpLink', function () {

      beforeEach(function () {
        $('<link rel="collection" type="text/html" href="http://semanticlink-test">').prependTo('HEAD');
      });

      describe('HTTP', function () {
        describe("returns a promise", function () {
          var success, failure
          beforeEach(function () {
            success = jasmine.createSpy("Resource");
            failure = jasmine.createSpy("Fail Resource");
            $httpBackend.expectGET('http://semanticlink-test/').respond(204);
          });

          it('should do request based on href (200,204) and return to done', function () {

            link.get("HEAD", 'collection', 'text/html').
              then(success, failure);

            $httpBackend.flush();
            expect(success).toHaveBeenCalled();
            expect(failure).toHaveBeenCalled();
          });

        });

        beforeEach(inject(function (_$httpBackend_) {
          $httpBackend = _$httpBackend_;
        }));
      });

      afterEach(function () {
        $('link[rel="collection"]').remove();
      });

      beforeEach(module('httpLink'));
      beforeEach(inject(function (_link_) {
        link = _link_;
      }));
    });

  }
);