Add email message characterization tests

2026-09-12 12:06:56 +01:00
parent cc8d38bced
commit b21a6ef175
5 changed files with 163 additions and 3 deletions
@@ -0,0 +1,157 @@
+using System.Linq;
+using System.Text;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using MimeKit;
+using Sarand.Net.Standard.Base.Email;
+
+namespace Sarand.UnitTests.Standard.Base.Email
+{
+	[TestClass]
+	public class SaEmailConsole_Tester
+	{
+		// --- Test Support ---
+
+		private class TestEmailConsole : SaEmailConsole
+		{
+			public MimeMessage CreateMessage(SaEmailData emailData)
+			{
+				return CreateMailMessage(emailData);
+			}
+		}
+
+		// --- Message Content ---
+
+		[TestMethod]
+		public void CreateMailMessage_PopulatesAddressesSubjectAndTextBody()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.AddressesTo.Add("to@example.com");
+			emailData.AddressesCc.Add("cc@example.com");
+			emailData.AddressesBcc.Add("bcc@example.com");
+			emailData.Config.Message.AddressesBcc.Add("configured-bcc@example.com");
+			emailData.Subject = "Test subject";
+			emailData.MessageBody = "Test body";
+
+			MimeMessage message = new TestEmailConsole().CreateMessage(emailData);
+
+			Assert.AreEqual("sender@example.com", ((MailboxAddress)message.From.Single()).Address);
+			Assert.AreEqual("to@example.com", ((MailboxAddress)message.To.Single()).Address);
+			Assert.AreEqual("cc@example.com", ((MailboxAddress)message.Cc.Single()).Address);
+			CollectionAssert.AreEquivalent(
+				new[] { "bcc@example.com", "configured-bcc@example.com" },
+				message.Bcc.Mailboxes.Select(address => address.Address).ToArray());
+			Assert.AreEqual("Test subject", message.Subject);
+			Assert.AreEqual("Test body", message.TextBody);
+			Assert.IsNull(message.HtmlBody);
+		}
+
+		[TestMethod]
+		public void CreateMailMessage_PopulatesHtmlBody()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.HtmlBody = true;
+			emailData.MessageBody = "<p>Test body</p>";
+
+			MimeMessage message = new TestEmailConsole().CreateMessage(emailData);
+
+			Assert.AreEqual("<p>Test body</p>", message.HtmlBody);
+			Assert.IsNull(message.TextBody);
+		}
+
+		// --- Attachments ---
+
+		[TestMethod]
+		public void CreateMailMessage_PopulatesAttachment()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.Attachments.Add(new SaEmailAttachmentData("text", "plain")
+			{
+				Filename = "test.txt",
+				Data = Encoding.UTF8.GetBytes("Attachment content")
+			});
+
+			MimeMessage message = new TestEmailConsole().CreateMessage(emailData);
+			MimePart attachment = (MimePart)message.Attachments.Single();
+
+			Assert.AreEqual("test.txt", attachment.FileName);
+			Assert.AreEqual("text/plain", attachment.ContentType.MimeType);
+			Assert.AreEqual(ContentDisposition.Attachment, attachment.ContentDisposition.Disposition);
+			Assert.AreEqual(ContentEncoding.Base64, attachment.ContentTransferEncoding);
+		}
+
+		[TestMethod]
+		public void CreateMailMessage_UsesDefaultAttachmentFilename()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.Attachments.Add(new SaEmailAttachmentData("application", "octet-stream")
+			{
+				Data = new byte[] { 1, 2, 3 }
+			});
+
+			MimeMessage message = new TestEmailConsole().CreateMessage(emailData);
+			MimePart attachment = (MimePart)message.Attachments.Single();
+
+			Assert.AreEqual("Attachment_001.dat", attachment.FileName);
+		}
+
+		[TestMethod]
+		public void CreateMailMessage_PopulatesInlineAttachment()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.HtmlBody = true;
+			emailData.MessageBody = "<img src=\"cid:test-image@example.com\">";
+			emailData.Attachments.Add(new SaEmailAttachmentData("image", "png")
+			{
+				Filename = "test.png",
+				ContentId = "test-image@example.com",
+				Data = new byte[] { 1, 2, 3 },
+				Inline = true
+			});
+
+			MimeMessage message = new TestEmailConsole().CreateMessage(emailData);
+			MimePart attachment = message.BodyParts.OfType<MimePart>().Single(part => part.ContentId == "test-image@example.com");
+
+			Assert.AreEqual("test.png", attachment.FileName);
+			Assert.AreEqual(ContentDisposition.Inline, attachment.ContentDisposition.Disposition);
+			Assert.AreEqual("<img src=\"cid:test-image@example.com\">", message.HtmlBody);
+		}
+
+		// --- Formatting and Tag Tests ---
+
+		[TestMethod]
+		public void DynamicEmailTags_AreMatchedAndReplacedCaseInsensitively()
+		{
+			SaEmailData emailData = CreateEmailData();
+			emailData.MessageBody = "Before [#Test.Tag] after [#TEST.TAG].";
+
+			Assert.IsTrue(SaEmailConsole.EmailContainsTag(emailData, "[#test.tag]"));
+
+			SaEmailConsole.ReplaceDynamicEmailTag(emailData, "[#test.tag]", "replacement");
+
+			Assert.AreEqual("Before replacement after replacement.", emailData.MessageBody);
+		}
+
+		[TestMethod]
+		public void FormatAttachmentContentId_ReplacesAddressAndWhitespaceCharacters()
+		{
+			Assert.AreEqual("test_image_name@saxonite.com", SaEmailConsole.FormatAttachmentContentId("test @ image  name"));
+		}
+
+		// --- Test Data ---
+
+		private static SaEmailData CreateEmailData()
+		{
+			SaEmailConfig config = new SaEmailConfig("UnitTest");
+			config.Message.AddressFrom = "sender@example.com";
+
+			return new SaEmailData
+			{
+				Config = config,
+				Subject = "Unit test subject",
+				MessageBody = ""
+			};
+		}
+
+		// --- The End ---
+	}
+}