public void MessagingCommandHandler_HandleCommand_SendSMSCommand_CommandHandled()
        {
            Mock <IEmailServiceProxy> emailServiceProxy = new Mock <IEmailServiceProxy>();
            Mock <ISMSServiceProxy>   smsServiceProxy   = new Mock <ISMSServiceProxy>();

            MessagingCommandHandler handler = new MessagingCommandHandler(emailServiceProxy.Object, smsServiceProxy.Object);

            SendSMSCommand command = MessagingServiceSMSTestData.GetSendSmsCommand();

            Should.NotThrow(async() => { await handler.Handle(command, CancellationToken.None); });
        }