private IEnumerable<ActionDescriptor> GetDescriptors(params TypeInfo[] controllerTypeInfos)
        {
            var controllerTypeProvider = new FixedSetControllerTypeProvider(controllerTypeInfos);
            var modelBuilder = new DefaultControllerModelBuilder(new DefaultActionModelBuilder(null),
                                                                 NullLoggerFactory.Instance,
                                                                 null);

            var provider = new ControllerActionDescriptorProvider(
                controllerTypeProvider,
                modelBuilder,
                new TestGlobalFilterProvider(),
                new MockMvcOptionsAccessor(),
                new NullLoggerFactory());

            return provider.GetDescriptors();
        }