public async Task Relationships_Lifecycle() { // arrange DigitalTwinsClient client = GetClient(); var floorContainsRoomRelationshipId = "FloorToRoomRelationship"; var floorCooledByHvacRelationshipId = "FloorToHvacRelationship"; var hvacCoolsFloorRelationshipId = "HvacToFloorRelationship"; var roomContainedInFloorRelationshipId = "RoomToFloorRelationship"; string floorModelId = await GetUniqueModelIdAsync(client, TestAssetSettings.FloorModelIdPrefix).ConfigureAwait(false); string roomModelId = await GetUniqueModelIdAsync(client, TestAssetSettings.RoomModelIdPrefix).ConfigureAwait(false); string hvacModelId = await GetUniqueTwinIdAsync(client, TestAssetSettings.HvacModelIdPrefix).ConfigureAwait(false); string floorTwinId = await GetUniqueTwinIdAsync(client, TestAssetSettings.FloorTwinIdPrefix).ConfigureAwait(false); string roomTwinId = await GetUniqueTwinIdAsync(client, TestAssetSettings.RoomTwinIdPrefix).ConfigureAwait(false); string hvacTwinId = await GetUniqueTwinIdAsync(client, TestAssetSettings.HvacTwinIdPrefix).ConfigureAwait(false); try { // create floor, room and hvac model string floorModel = TestAssetsHelper.GetFloorModelPayload(floorModelId, roomModelId, hvacModelId); string roomModel = TestAssetsHelper.GetRoomModelPayload(roomModelId, floorModelId); string hvacModel = TestAssetsHelper.GetHvacModelPayload(hvacModelId, floorModelId); await client.CreateModelsAsync(new List <string> { floorModel, roomModel, hvacModel }).ConfigureAwait(false); // create floor twin string floorTwin = TestAssetsHelper.GetFloorTwinPayload(floorModelId); await client.CreateDigitalTwinAsync(floorTwinId, floorTwin).ConfigureAwait(false); // Create room twin string roomTwin = TestAssetsHelper.GetRoomTwinPayload(roomModelId); await client.CreateDigitalTwinAsync(roomTwinId, roomTwin).ConfigureAwait(false); // create hvac twin string hvacTwin = TestAssetsHelper.GetHvacTwinPayload(hvacModelId); await client.CreateDigitalTwinAsync(hvacTwinId, hvacTwin).ConfigureAwait(false); string floorContainsRoomPayload = TestAssetsHelper.GetRelationshipWithPropertyPayload(roomTwinId, ContainsRelationship, "isAccessRestricted", true); string floorTwinCoolsRelationshipPayload = TestAssetsHelper.GetRelationshipPayload(floorTwinId, CoolsRelationship); string floorTwinContainedInRelationshipPayload = TestAssetsHelper.GetRelationshipPayload(floorTwinId, ContainedInRelationship); string floorCooledByHvacPayload = TestAssetsHelper.GetRelationshipPayload(hvacTwinId, CooledByRelationship); string floorContainsRoomUpdatePayload = TestAssetsHelper.GetRelationshipUpdatePayload("isAccessRestricted", false); // CREATE relationships // create Relationship from Floor -> Room await client .CreateRelationshipAsync( floorTwinId, floorContainsRoomRelationshipId, floorContainsRoomPayload) .ConfigureAwait(false); // create Relationship from Floor -> Hvac await client .CreateRelationshipAsync( floorTwinId, floorCooledByHvacRelationshipId, floorCooledByHvacPayload) .ConfigureAwait(false); // create Relationship from Hvac -> Floor await client .CreateRelationshipAsync( hvacTwinId, hvacCoolsFloorRelationshipId, floorTwinCoolsRelationshipPayload) .ConfigureAwait(false); // create Relationship from Room -> Floor await client .CreateRelationshipAsync( roomTwinId, roomContainedInFloorRelationshipId, floorTwinContainedInRelationshipPayload) .ConfigureAwait(false); // UPDATE relationships // create Relationship from Floor -> Room await client .UpdateRelationshipAsync( floorTwinId, floorContainsRoomRelationshipId, floorContainsRoomUpdatePayload) .ConfigureAwait(false); // GET relationship Response <string> containsRelationshipId = await client .GetRelationshipAsync( floorTwinId, floorContainsRoomRelationshipId) .ConfigureAwait(false); // LIST incoming relationships AsyncPageable <IncomingRelationship> incomingRelationships = client.GetIncomingRelationshipsAsync(floorTwinId); int numberOfIncomingRelationshipsToFloor = 0; await foreach (IncomingRelationship relationship in incomingRelationships) { ++numberOfIncomingRelationshipsToFloor; } numberOfIncomingRelationshipsToFloor.Should().Be(2, "floor has incoming relationships from room and hvac"); // LIST relationships AsyncPageable <string> floorRelationships = client.GetRelationshipsAsync(floorTwinId); int numberOfFloorRelationships = 0; await foreach (var relationship in floorRelationships) { ++numberOfFloorRelationships; } numberOfFloorRelationships.Should().Be(2, "floor has an relationship to room and hvac"); // LIST relationships by name AsyncPageable <string> roomTwinRelationships = client .GetRelationshipsAsync( roomTwinId, ContainedInRelationship); containsRelationshipId.Value.Should().Contain(floorContainsRoomRelationshipId); int numberOfRelationships = 0; await foreach (var relationship in roomTwinRelationships) { ++numberOfRelationships; } numberOfRelationships.Should().Be(1, "room has only one containedIn relationship to floor"); await client .DeleteRelationshipAsync( floorTwinId, floorContainsRoomRelationshipId) .ConfigureAwait(false); await client .DeleteRelationshipAsync( roomTwinId, roomContainedInFloorRelationshipId) .ConfigureAwait(false); await client .DeleteRelationshipAsync( floorTwinId, floorCooledByHvacRelationshipId) .ConfigureAwait(false); await client .DeleteRelationshipAsync( hvacTwinId, hvacCoolsFloorRelationshipId) .ConfigureAwait(false); Func <Task> act = async() => { await client .GetRelationshipAsync( floorTwinId, floorContainsRoomRelationshipId) .ConfigureAwait(false); }; act.Should().Throw <RequestFailedException>() .And.Status.Should().Be((int)HttpStatusCode.NotFound); act = async() => { await client .GetRelationshipAsync( roomTwinId, roomContainedInFloorRelationshipId) .ConfigureAwait(false); }; act.Should().Throw <RequestFailedException>(). And.Status.Should().Be((int)HttpStatusCode.NotFound); act = async() => { await client .GetRelationshipAsync( floorTwinId, floorCooledByHvacRelationshipId) .ConfigureAwait(false); }; act.Should().Throw <RequestFailedException>(). And.Status.Should().Be((int)HttpStatusCode.NotFound); act = async() => { await client .GetRelationshipAsync( hvacTwinId, hvacCoolsFloorRelationshipId) .ConfigureAwait(false); }; act.Should().Throw <RequestFailedException>() .And.Status.Should().Be((int)HttpStatusCode.NotFound); } finally { // clean up try { await Task .WhenAll( client.DeleteDigitalTwinAsync(floorTwinId), client.DeleteDigitalTwinAsync(roomTwinId), client.DeleteDigitalTwinAsync(hvacTwinId), client.DeleteModelAsync(hvacModelId), client.DeleteModelAsync(floorModelId), client.DeleteModelAsync(roomModelId)) .ConfigureAwait(false); } catch (Exception ex) { Assert.Fail($"Test clean up failed: {ex.Message}"); } } }