public async Task RegisterAndDeregisterDevice() { var deviceReg = new YouMailPushRegistration { ClientType = YouMailPushClientType.ISeeVM, DeviceId = "ABCDEFG", AppVersion = "ISeeVM", Version = 9, PushType = YouMailPushType.MWI | YouMailPushType.MissedCall | YouMailPushType.NewMessage | YouMailPushType.NewMessageWithTranscription | YouMailPushType.AdminFreeFormMessage | YouMailPushType.AdminMessage | YouMailPushType.MessageNotif | YouMailPushType.MissedCallNotif | YouMailPushType.SettingsNotif | YouMailPushType.SystemEvent | YouMailPushType.SMS | YouMailPushType.MMS | YouMailPushType.IncomingExtraLine | YouMailPushType.MessageDeliveryReceipt, MessageTypes = "vm,sms,mms" }; var registration = await service.RegisterDeviceAsync(deviceReg); Assert.IsNotNull(registration); Assert.IsTrue(registration.Id != 0); var registrations = await service.GetDeviceRegistrationsAsync(); await service.DeleteDeviceRegistrationAsync(registration.Id); Assert.IsTrue(registration.DeviceId == deviceReg.DeviceId); Assert.IsTrue(registration.AppVersion == deviceReg.AppVersion); Assert.IsTrue(registration.Version == deviceReg.Version); Assert.IsTrue(registration.PushType == deviceReg.PushType); Assert.IsTrue(registration.MessageTypes == deviceReg.MessageTypes); bool fFound = false; foreach (var reg in registrations) { if (reg.Id == registration.Id) { fFound = true; break; } } Assert.IsTrue(fFound, $"Did not find a registration with Id: {registration.Id}"); fFound = false; registrations = await service.GetDeviceRegistrationsAsync(); foreach (var reg in registrations) { if (reg.Id == registration.Id) { fFound = true; break; } } Assert.IsFalse(fFound, $"Found a registration with Id: {registration.Id}, even though we deleted it"); }