private static void ValidateFileAttachment(EmailMessageAttachment attachment)
{
// throw when null
if (attachment == null)
{
throw new ArgumentNullException("attachment");
}
// throw when null
if (attachment.Bytes == null)
{
throw new ArgumentNullException("attachment", "{Bytes} cannot be null.");
}
// throw when null/empty
if (string.IsNullOrWhiteSpace(attachment.FileName))
{
throw new ArgumentException("{FileName} cannot be null or empty.", "attachment");
}
// throw when null/empty
if (string.IsNullOrWhiteSpace(attachment.MimeType))
{
throw new ArgumentException("{MimeType} cannot be null or empty.", "attachment");
}
}
public async Task ShouldSendEmailWithAttachmentUsingSmtp()
{
var provider = new SmtpClientProvider(_settings.Object);
var message = new EmailMessageWithAttachment("*****@*****.**", "*****@*****.**")
{
Subject = "Unit test"
};
message.AddBody(EmailMessageBody.FromText("Hello world"));
var textStream = new MemoryStream();
using (var wtr = new StreamWriter(textStream))
{
wtr.WriteLine("Hello world attachment");
wtr.Flush();
message.AddAttachment(EmailMessageAttachment.Create(textStream, Encoding.UTF8, "test.txt", "plain/text"));
await provider.SendAsync(message);
}
_server.ReceivedEmailCount.Should().Be(1);
var receivedMessage = _server.ReceivedEmail.First();
receivedMessage.Subject.Should().Be("Unit test");
receivedMessage.Body.Should().Be("Hello world");
receivedMessage.IsBodyHtml.Should().BeFalse();
receivedMessage.Attachments.Count.Should().Be(1);
receivedMessage.Attachments.First().Name.Should().Be("test.txt");
receivedMessage.Attachments.First().ContentType.MediaType.Should().Be("plain/text");
}