/// <summary>
        /// Marks the message as failed.
        /// </summary>
        /// <param name="providerStatus">The provider status.</param>
        /// <param name="failedDateTime">The failed date time.</param>
        public void MarkMessageAsFailed(String providerStatus,
                                        DateTime failedDateTime)
        {
            this.CheckMessageCanBeSetToFailed();

            EmailMessageFailedEvent messageFailedEvent = new EmailMessageFailedEvent(this.AggregateId, providerStatus, failedDateTime);

            this.ApplyAndAppend(messageFailedEvent);
        }
        public void EmailMessageFailedEvent_CanBeCreated_IsCreated()
        {
            EmailMessageFailedEvent messageFailedEvent =
                new EmailMessageFailedEvent(TestData.MessageId, TestData.ProviderStatusDescription, TestData.FailedDateTime);

            messageFailedEvent.ShouldNotBeNull();
            messageFailedEvent.AggregateId.ShouldBe(TestData.MessageId);
            messageFailedEvent.EventId.ShouldNotBe(Guid.Empty);
            messageFailedEvent.MessageId.ShouldBe(TestData.MessageId);
            messageFailedEvent.ProviderStatus.ShouldBe(TestData.ProviderStatusDescription);
            messageFailedEvent.FailedDateTime.ShouldBe(TestData.FailedDateTime);
        }
 /// <summary>
 /// Plays the event.
 /// </summary>
 /// <param name="domainEvent">The domain event.</param>
 private void PlayEvent(EmailMessageFailedEvent domainEvent)
 {
     this.MessageStatus = MessageStatus.Failed;
 }