public void WhenCalled_SendTheMessageToMessageDispatcher()
        {
            // Arrange
            var excludedTemplatesId = new List <string>();

            _repo.Setup(x => x.GetDisabledNotifications("organizationId"))
            .Returns(excludedTemplatesId);
            var templates = new List <NotificationTemplate>
            {
                new NotificationTemplate(EmailNotification.Instance, _event, false)
            };

            _repo.Setup(x => x.GetNotificationTemplatesByNotificationEvent(_event, excludedTemplatesId))
            .Returns(templates);
            var messageToSend = new NotificationMessage("subject", "body", _event);

            _messageGenerator.Setup(x => x.Generate(It.IsIn <NotificationTemplate>(templates), _notificationData))
            .Returns(messageToSend);

            // Act
            _sut.Handle(_recipient, _event, _notificationData).Wait();

            // Assert
            _messageDispatcher.Verify(x => x.Dispatch(It.IsAny <EmailNotification>(), messageToSend, _recipient));
        }