C# DefaultServices.GetServices方法代码示例

        public void Constructor_DefaultServicesInContainer()
        {
            // Arrange
            var config = new HttpConfiguration();

            // Act
            var defaultServices = new DefaultServices(config);

            // Assert
            Assert.Null(defaultServices.GetService(typeof(IDocumentationProvider)));
            Assert.Null(defaultServices.GetService(typeof(ITraceWriter)));

            Assert.IsType<DefaultActionValueBinder>(defaultServices.GetService(typeof(IActionValueBinder)));
            Assert.IsType<ApiExplorer>(defaultServices.GetService(typeof(IApiExplorer)));
            Assert.IsType<DefaultAssembliesResolver>(defaultServices.GetService(typeof(IAssembliesResolver)));
            Assert.IsType<DefaultBodyModelValidator>(defaultServices.GetService(typeof(IBodyModelValidator)));
            Assert.IsType<DefaultContentNegotiator>(defaultServices.GetService(typeof(IContentNegotiator)));
            Assert.IsType<ApiControllerActionInvoker>(defaultServices.GetService(typeof(IHttpActionInvoker)));
            Assert.IsType<ApiControllerActionSelector>(defaultServices.GetService(typeof(IHttpActionSelector)));
            Assert.IsType<DefaultHttpControllerActivator>(defaultServices.GetService(typeof(IHttpControllerActivator)));
            Assert.IsType<DefaultHttpControllerSelector>(defaultServices.GetService(typeof(IHttpControllerSelector)));
            Assert.IsType<DefaultHttpControllerTypeResolver>(defaultServices.GetService(typeof(IHttpControllerTypeResolver)));
            Assert.IsType<TraceManager>(defaultServices.GetService(typeof(ITraceManager)));
            Assert.IsType<DataAnnotationsModelMetadataProvider>(defaultServices.GetService(typeof(ModelMetadataProvider)));
            Assert.IsType<ModelValidatorCache>(defaultServices.GetService(typeof(IModelValidatorCache)));
            Assert.IsType<DefaultExceptionHandler>(defaultServices.GetService(typeof(IExceptionHandler)));

            object[] filterProviders = defaultServices.GetServices(typeof(IFilterProvider)).ToArray();
            Assert.Equal(2, filterProviders.Length);
            Assert.IsType<ConfigurationFilterProvider>(filterProviders[0]);
            Assert.IsType<ActionDescriptorFilterProvider>(filterProviders[1]);

            object[] modelBinderProviders = defaultServices.GetServices(typeof(ModelBinderProvider)).ToArray();
            Assert.Equal(8, modelBinderProviders.Length);
            Assert.IsType<TypeConverterModelBinderProvider>(modelBinderProviders[0]);
            Assert.IsType<TypeMatchModelBinderProvider>(modelBinderProviders[1]);
            Assert.IsType<KeyValuePairModelBinderProvider>(modelBinderProviders[2]);
            Assert.IsType<ComplexModelDtoModelBinderProvider>(modelBinderProviders[3]);
            Assert.IsType<ArrayModelBinderProvider>(modelBinderProviders[4]);
            Assert.IsType<DictionaryModelBinderProvider>(modelBinderProviders[5]);
            Assert.IsType<CollectionModelBinderProvider>(modelBinderProviders[6]);
            Assert.IsType<MutableObjectModelBinderProvider>(modelBinderProviders[7]);

            object[] validatorProviders = defaultServices.GetServices(typeof(ModelValidatorProvider)).ToArray();
            Assert.Equal(2, validatorProviders.Length);
            Assert.IsType<DataAnnotationsModelValidatorProvider>(validatorProviders[0]);
            Assert.IsType<DataMemberModelValidatorProvider>(validatorProviders[1]);

            object[] valueProviderFactories = defaultServices.GetServices(typeof(ValueProviderFactory)).ToArray();
            Assert.Equal(2, valueProviderFactories.Length);
            Assert.IsType<QueryStringValueProviderFactory>(valueProviderFactories[0]);
            Assert.IsType<RouteDataValueProviderFactory>(valueProviderFactories[1]);

            object[] exceptionLoggers = defaultServices.GetServices(typeof(IExceptionLogger)).ToArray();
            Assert.Equal(0, exceptionLoggers.Length);
        }

        public void ReplaceRange_ReplacesAllValuesWithTheGivenServices()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider1 = new Mock<IFilterProvider>().Object;
            var filterProvider2 = new Mock<IFilterProvider>().Object;

            // Act
            defaultServices.ReplaceRange(typeof(IFilterProvider), new[] { filterProvider1, filterProvider2 });

            // Assert
            Assert.Equal(new[] { filterProvider1, filterProvider2 }, defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void RemoteAt_RemovesService()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider1 = new Mock<IFilterProvider>().Object;
            var filterProvider2 = new Mock<IFilterProvider>().Object;
            defaultServices.ReplaceRange(typeof(IFilterProvider), new[] { filterProvider1, filterProvider2 });

            // Act
            defaultServices.RemoveAt(typeof(IFilterProvider), 1);

            // Assert
            Assert.Equal(new[] { filterProvider1 }, defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void RemoveAll_SuccessfulMatch()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider1 = new Mock<IFilterProvider>().Object;
            var filterProvider2 = new Mock<IFilterProvider>().Object;
            defaultServices.ReplaceRange(typeof(IFilterProvider), new[] { filterProvider1, filterProvider2 });

            // Act
            defaultServices.RemoveAll(typeof(IFilterProvider), _ => true);

            // Assert
            Assert.Empty(defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void Remove_ObjectNotFound()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider1 = new Mock<IFilterProvider>().Object;
            var filterProvider2 = new Mock<IFilterProvider>().Object;
            var notPresentFilterProvider = new Mock<IFilterProvider>().Object;
            defaultServices.ReplaceRange(typeof(IFilterProvider), new[] { filterProvider1, filterProvider2 });

            // Act
            defaultServices.Remove(typeof(IFilterProvider), notPresentFilterProvider);

            // Assert
            Assert.Equal(new[] { filterProvider1, filterProvider2 }, defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void InsertRange_AddsElementAtTheRequestedLocation()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider1 = new Mock<IFilterProvider>().Object;
            var filterProvider2 = new Mock<IFilterProvider>().Object;
            var newFilterProvider1 = new Mock<IFilterProvider>().Object;
            var newFilterProvider2 = new Mock<IFilterProvider>().Object;
            defaultServices.ReplaceRange(typeof(IFilterProvider), new[] { filterProvider1, filterProvider2 });

            // Act
            defaultServices.InsertRange(typeof(IFilterProvider), 1, new[] { newFilterProvider1, newFilterProvider2 });

            // Assert
            Assert.Equal(new[] { filterProvider1, newFilterProvider1, newFilterProvider2, filterProvider2 }, defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void GetServices_CachesResultFromDependencyInjectionContainer()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var mockDependencyResolver = new Mock<IDependencyResolver>();
            config.DependencyResolver = mockDependencyResolver.Object;

            // Act
            defaultServices.GetServices(typeof(IFilterProvider));
            defaultServices.GetServices(typeof(IFilterProvider));

            // Assert
            mockDependencyResolver.Verify(dr => dr.GetServices(typeof(IFilterProvider)), Times.Once());
        }

        public void GetServices_PrependsServiceInDependencyInjectionContainer()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            IEnumerable<object> servicesBefore = defaultServices.GetServices(typeof(IFilterProvider));
            var filterProvider = new Mock<IFilterProvider>().Object;
            var mockDependencyResolver = new Mock<IDependencyResolver>();
            mockDependencyResolver.Setup(dr => dr.GetServices(typeof(IFilterProvider))).Returns(new[] { filterProvider });
            config.DependencyResolver = mockDependencyResolver.Object;

            // Act
            IEnumerable<object> servicesAfter = defaultServices.GetServices(typeof(IFilterProvider));

            // Assert
            Assert.Equal(new[] { filterProvider }.Concat(servicesBefore), servicesAfter);
        }

        public void GetServices_ReturnsEmptyEnumerationWhenServiceListEmpty()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            defaultServices.Clear(typeof(IFilterProvider));

            // Act
            IEnumerable<object> services = defaultServices.GetServices(typeof(IFilterProvider));

            // Assert
            Assert.Empty(services);
        }

        public void GetServices_GuardClauses()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);

            // Act & assert
            Assert.ThrowsArgumentNull(() => defaultServices.GetServices(serviceType: null), "serviceType");
            Assert.ThrowsArgument(
                () => defaultServices.GetServices(typeof(object)),
                "serviceType",
                "The service type Object is not supported.");
        }

        public void Clear_RemovesAllServices()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            Assert.NotEmpty(defaultServices.GetServices(typeof(IFilterProvider)));

            // Act
            defaultServices.Clear(typeof(IFilterProvider));

            // Assert
            Assert.Empty(defaultServices.GetServices(typeof(IFilterProvider)));
        }

        public void AddRange_SkipsNullObjects()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            IEnumerable<object> servicesBefore = defaultServices.GetServices(typeof(IFilterProvider));

            // Act
            defaultServices.AddRange(typeof(IFilterProvider), new object[] { null });

            // Assert
            IEnumerable<object> servicesAfter = defaultServices.GetServices(typeof(IFilterProvider));
            Assert.Equal(servicesBefore, servicesAfter);
        }

        public void AddRange_AddsServicesToEndOfServicesList()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            var filterProvider = new Mock<IFilterProvider>().Object;
            IEnumerable<object> servicesBefore = defaultServices.GetServices(typeof(IFilterProvider));

            // Act
            defaultServices.AddRange(typeof(IFilterProvider), new[] { filterProvider });

            // Assert
            IEnumerable<object> servicesAfter = defaultServices.GetServices(typeof(IFilterProvider));
            Assert.Equal(servicesBefore.Concat(new[] { filterProvider }), servicesAfter);
        }

        public void GetService_ReturnsFirstServiceInList()
        {
            // Arrange
            var config = new HttpConfiguration();
            var defaultServices = new DefaultServices(config);
            IEnumerable<object> servicesBefore = defaultServices.GetServices(typeof(IFilterProvider));

            // Act
            object service = defaultServices.GetService(typeof(IFilterProvider));

            // Assert
            Assert.Same(servicesBefore.First(), service);
        }