public async Task TestEdgeHubConnection() { const string EdgeDeviceId = "testHubEdgeDevice1"; var twinMessageConverter = new TwinMessageConverter(); var twinCollectionMessageConverter = new TwinCollectionMessageConverter(); var messageConverterProvider = new MessageConverterProvider( new Dictionary <Type, IMessageConverter>() { { typeof(Message), new DeviceClientMessageConverter() }, { typeof(Twin), twinMessageConverter }, { typeof(TwinCollection), twinCollectionMessageConverter } }); string iotHubConnectionString = await SecretsHelper.GetSecretFromConfigKey("iotHubConnStrKey"); IotHubConnectionStringBuilder iotHubConnectionStringBuilder = IotHubConnectionStringBuilder.Create(iotHubConnectionString); RegistryManager registryManager = RegistryManager.CreateFromConnectionString(iotHubConnectionString); await registryManager.OpenAsync(); string iothubHostName = iotHubConnectionStringBuilder.HostName; var identityProvider = new IdentityProvider(iothubHostName); var identityFactory = new ClientCredentialsFactory(identityProvider); (string edgeDeviceId, string deviceConnStr) = await RegistryManagerHelper.CreateDevice(EdgeDeviceId, iotHubConnectionString, registryManager, true, false); string edgeHubConnectionString = $"{deviceConnStr};ModuleId={EdgeHubModuleId}"; IClientCredentials edgeHubCredentials = identityFactory.GetWithConnectionString(edgeHubConnectionString); string sasKey = ConnectionStringHelper.GetSharedAccessKey(deviceConnStr); var signatureProvider = new SharedAccessKeySignatureProvider(sasKey); var credentialsCache = Mock.Of <ICredentialsCache>(); var metadataStore = new Mock <IMetadataStore>(); metadataStore.Setup(m => m.GetMetadata(It.IsAny <string>())).ReturnsAsync(new ConnectionMetadata("dummyValue")); var cloudConnectionProvider = new CloudConnectionProvider( messageConverterProvider, 1, new ClientProvider(), Option.None <UpstreamProtocol>(), new ClientTokenProvider(signatureProvider, iothubHostName, edgeDeviceId, TimeSpan.FromMinutes(60)), Mock.Of <IDeviceScopeIdentitiesCache>(), credentialsCache, edgeHubCredentials.Identity, TimeSpan.FromMinutes(60), true, TimeSpan.FromSeconds(20), false, Option.None <IWebProxy>(), metadataStore.Object); var deviceConnectivityManager = Mock.Of <IDeviceConnectivityManager>(); var connectionManager = new ConnectionManager(cloudConnectionProvider, Mock.Of <ICredentialsCache>(), identityProvider, deviceConnectivityManager); try { Mock.Get(credentialsCache) .Setup(c => c.Get(edgeHubCredentials.Identity)) .ReturnsAsync(Option.Some(edgeHubCredentials)); Assert.NotNull(edgeHubCredentials); Assert.NotNull(edgeHubCredentials.Identity); // Set Edge hub desired properties await this.SetDesiredProperties(registryManager, edgeDeviceId); var endpointFactory = new EndpointFactory(connectionManager, new RoutingMessageConverter(), edgeDeviceId, 10, 10); var routeFactory = new EdgeRouteFactory(endpointFactory); var dbStoreProvider = new InMemoryDbStoreProvider(); IStoreProvider storeProvider = new StoreProvider(dbStoreProvider); IEntityStore <string, TwinInfo> twinStore = storeProvider.GetEntityStore <string, TwinInfo>("twins"); var twinManager = new TwinManager(connectionManager, twinCollectionMessageConverter, twinMessageConverter, Option.Some(twinStore)); var routerConfig = new RouterConfig(Enumerable.Empty <Route>()); TimeSpan defaultTimeout = TimeSpan.FromSeconds(60); var endpointExecutorFactory = new SyncEndpointExecutorFactory(new EndpointExecutorConfig(defaultTimeout, new FixedInterval(0, TimeSpan.FromSeconds(1)), defaultTimeout, true)); Router router = await Router.CreateAsync(Guid.NewGuid().ToString(), iothubHostName, routerConfig, endpointExecutorFactory); IInvokeMethodHandler invokeMethodHandler = new InvokeMethodHandler(connectionManager); var subscriptionProcessor = new SubscriptionProcessor(connectionManager, invokeMethodHandler, deviceConnectivityManager); IEdgeHub edgeHub = new RoutingEdgeHub(router, new RoutingMessageConverter(), connectionManager, twinManager, edgeDeviceId, invokeMethodHandler, subscriptionProcessor); cloudConnectionProvider.BindEdgeHub(edgeHub); var versionInfo = new VersionInfo("v1", "b1", "c1"); // Create Edge Hub connection EdgeHubConnection edgeHubConnection = await EdgeHubConnection.Create( edgeHubCredentials.Identity, edgeHub, twinManager, connectionManager, routeFactory, twinCollectionMessageConverter, versionInfo, new NullDeviceScopeIdentitiesCache()); await Task.Delay(TimeSpan.FromMinutes(1)); TwinConfigSource configSource = new TwinConfigSource(edgeHubConnection, edgeHubCredentials.Identity.Id, versionInfo, twinManager, twinMessageConverter, twinCollectionMessageConverter, routeFactory); // Get and Validate EdgeHubConfig Option <EdgeHubConfig> edgeHubConfigOption = await configSource.GetConfig(); Assert.True(edgeHubConfigOption.HasValue); EdgeHubConfig edgeHubConfig = edgeHubConfigOption.OrDefault(); Assert.Equal("1.0", edgeHubConfig.SchemaVersion); Assert.NotNull(edgeHubConfig.Routes); Assert.NotNull(edgeHubConfig.StoreAndForwardConfiguration); Assert.Equal(20, edgeHubConfig.StoreAndForwardConfiguration.TimeToLiveSecs); IReadOnlyDictionary <string, RouteConfig> routes = edgeHubConfig.Routes; Assert.Equal(4, routes.Count); RouteConfig route1 = routes["route1"]; Assert.True(route1.Route.Endpoint.GetType() == typeof(CloudEndpoint)); Assert.Equal("route1", route1.Name); Assert.Equal("from /* INTO $upstream", route1.Value); RouteConfig route2 = routes["route2"]; Endpoint endpoint = route2.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module2/input1", endpoint.Id); Assert.Equal("route2", route2.Name); Assert.Equal("from /modules/module1 INTO BrokeredEndpoint(\"/modules/module2/inputs/input1\")", route2.Value); RouteConfig route3 = routes["route3"]; endpoint = route3.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module3/input1", endpoint.Id); Assert.Equal("route3", route3.Name); Assert.Equal("from /modules/module2 INTO BrokeredEndpoint(\"/modules/module3/inputs/input1\")", route3.Value); RouteConfig route4 = routes["route4"]; endpoint = route4.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module4/input1", endpoint.Id); Assert.Equal("route4", route4.Name); Assert.Equal("from /modules/module3 INTO BrokeredEndpoint(\"/modules/module4/inputs/input1\")", route4.Value); // Make sure reported properties were updated appropriately EdgeHubConnection.ReportedProperties reportedProperties = await this.GetReportedProperties(registryManager, edgeDeviceId); Assert.Equal(200, reportedProperties.LastDesiredStatus.Code); Assert.NotNull(reportedProperties.Clients); Assert.Equal(0, reportedProperties.Clients.Count); Assert.Equal("1.0", reportedProperties.SchemaVersion); Assert.Equal(versionInfo, reportedProperties.VersionInfo); // Simulate a module and a downstream device that connects to Edge Hub. string moduleId = "module1"; string sasToken = TokenHelper.CreateSasToken($"{iothubHostName}/devices/{edgeDeviceId}/modules/{moduleId}"); string moduleConnectionstring = $"HostName={iothubHostName};DeviceId={edgeDeviceId};ModuleId={moduleId};SharedAccessSignature={sasToken}"; IClientCredentials moduleClientCredentials = identityFactory.GetWithConnectionString(moduleConnectionstring); var moduleProxy = Mock.Of <IDeviceProxy>(d => d.IsActive); string downstreamDeviceId = "device1"; sasToken = TokenHelper.CreateSasToken($"{iothubHostName}/devices/{downstreamDeviceId}"); string downstreamDeviceConnectionstring = $"HostName={iothubHostName};DeviceId={downstreamDeviceId};SharedAccessSignature={sasToken}"; IClientCredentials downstreamDeviceCredentials = identityFactory.GetWithConnectionString(downstreamDeviceConnectionstring); var downstreamDeviceProxy = Mock.Of <IDeviceProxy>(d => d.IsActive); // Connect the module and downstream device and make sure the reported properties are updated as expected. await connectionManager.AddDeviceConnection(moduleClientCredentials.Identity, moduleProxy); await connectionManager.AddDeviceConnection(downstreamDeviceCredentials.Identity, downstreamDeviceProxy); string moduleIdKey = $"{edgeDeviceId}/{moduleId}"; await Task.Delay(TimeSpan.FromSeconds(10)); reportedProperties = await this.GetReportedProperties(registryManager, edgeDeviceId); Assert.Equal(2, reportedProperties.Clients.Count); Assert.Equal(ConnectionStatus.Connected, reportedProperties.Clients[moduleIdKey].Status); Assert.NotNull(reportedProperties.Clients[moduleIdKey].LastConnectedTimeUtc); Assert.Null(reportedProperties.Clients[moduleIdKey].LastDisconnectTimeUtc); Assert.Equal(ConnectionStatus.Connected, reportedProperties.Clients[downstreamDeviceId].Status); Assert.NotNull(reportedProperties.Clients[downstreamDeviceId].LastConnectedTimeUtc); Assert.Null(reportedProperties.Clients[downstreamDeviceId].LastDisconnectTimeUtc); Assert.Equal(200, reportedProperties.LastDesiredStatus.Code); Assert.Equal("1.0", reportedProperties.SchemaVersion); Assert.Equal(versionInfo, reportedProperties.VersionInfo); // Update desired propertied and make sure callback is called with valid values bool callbackCalled = false; Task ConfigUpdatedCallback(EdgeHubConfig updatedConfig) { Assert.NotNull(updatedConfig); Assert.NotNull(updatedConfig.StoreAndForwardConfiguration); Assert.NotNull(updatedConfig.Routes); routes = updatedConfig.Routes; Assert.Equal(4, routes.Count); route1 = routes["route1"]; Assert.True(route1.Route.Endpoint.GetType() == typeof(CloudEndpoint)); Assert.Equal("route1", route1.Name); Assert.Equal("from /* INTO $upstream", route1.Value); route2 = routes["route2"]; endpoint = route2.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module2/input1", endpoint.Id); Assert.Equal("route2", route2.Name); Assert.Equal("from /modules/module1 INTO BrokeredEndpoint(\"/modules/module2/inputs/input1\")", route2.Value); route3 = routes["route4"]; endpoint = route3.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module5/input1", endpoint.Id); Assert.Equal("route4", route3.Name); Assert.Equal("from /modules/module3 INTO BrokeredEndpoint(\"/modules/module5/inputs/input1\")", route3.Value); route4 = routes["route5"]; endpoint = route4.Route.Endpoint; Assert.True(endpoint.GetType() == typeof(ModuleEndpoint)); Assert.Equal($"{edgeDeviceId}/module6/input1", endpoint.Id); Assert.Equal("route5", route4.Name); Assert.Equal("from /modules/module5 INTO BrokeredEndpoint(\"/modules/module6/inputs/input1\")", route4.Value); callbackCalled = true; return(Task.CompletedTask); } configSource.SetConfigUpdatedCallback(ConfigUpdatedCallback); await this.UpdateDesiredProperties(registryManager, edgeDeviceId); await Task.Delay(TimeSpan.FromSeconds(5)); Assert.True(callbackCalled); reportedProperties = await this.GetReportedProperties(registryManager, edgeDeviceId); Assert.Equal(200, reportedProperties.LastDesiredStatus.Code); Assert.NotNull(reportedProperties.Clients); Assert.Equal(2, reportedProperties.Clients.Count); Assert.Equal("1.0", reportedProperties.SchemaVersion); Assert.Equal(versionInfo, reportedProperties.VersionInfo); // Disconnect the downstream device and make sure the reported properties are updated as expected. await connectionManager.RemoveDeviceConnection(moduleIdKey); await connectionManager.RemoveDeviceConnection(downstreamDeviceId); await Task.Delay(TimeSpan.FromSeconds(10)); reportedProperties = await this.GetReportedProperties(registryManager, edgeDeviceId); Assert.Equal(1, reportedProperties.Clients.Count); Assert.True(reportedProperties.Clients.ContainsKey(moduleIdKey)); Assert.False(reportedProperties.Clients.ContainsKey(downstreamDeviceId)); Assert.Equal(ConnectionStatus.Disconnected, reportedProperties.Clients[moduleIdKey].Status); Assert.NotNull(reportedProperties.Clients[moduleIdKey].LastConnectedTimeUtc); Assert.NotNull(reportedProperties.Clients[moduleIdKey].LastDisconnectTimeUtc); Assert.Equal(200, reportedProperties.LastDesiredStatus.Code); Assert.Equal("1.0", reportedProperties.SchemaVersion); Assert.Equal(versionInfo, reportedProperties.VersionInfo); // If the edge hub restarts, clear out the connected devices in the reported properties. await EdgeHubConnection.Create( edgeHubCredentials.Identity, edgeHub, twinManager, connectionManager, routeFactory, twinCollectionMessageConverter, versionInfo, new NullDeviceScopeIdentitiesCache()); await Task.Delay(TimeSpan.FromMinutes(1)); reportedProperties = await this.GetReportedProperties(registryManager, edgeDeviceId); Assert.Null(reportedProperties.Clients); Assert.Equal("1.0", reportedProperties.SchemaVersion); Assert.Equal(versionInfo, reportedProperties.VersionInfo); } finally { try { await RegistryManagerHelper.RemoveDevice(edgeDeviceId, registryManager); } catch (Exception) { // ignored } } }