public void TestContentMd5()
{
var part = new MimePart();
Assert.IsNull(part.ContentMd5, "Initial ContentMd5 value should be null");
part.ContentMd5 = "XYZ";
Assert.AreEqual("XYZ", part.ContentMd5, "Expected ContentMd5 to be updated");
Assert.IsTrue(part.Headers.Contains(HeaderId.ContentMd5), "Expected header to exist");
part.ContentMd5 = null;
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
Assert.IsFalse(part.Headers.Contains(HeaderId.ContentMd5), "Expected header to be removed");
part.Headers.Add(HeaderId.ContentMd5, "XYZ");
Assert.AreEqual("XYZ", part.ContentMd5, "Expected ContentMd5 to be set again");
part.Headers.Remove(HeaderId.ContentMd5);
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
part.ContentMd5 = "XYZ";
part.Headers.Clear();
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
Assert.Throws <InvalidOperationException> (() => part.ComputeContentMd5());
Assert.IsFalse(part.VerifyContentMd5());
}
public void TestContentMd5()
{
var part = new MimePart();
Assert.IsNull(part.ContentMd5, "Initial ContentMd5 value should be null");
part.ContentMd5 = "XYZ";
Assert.AreEqual("XYZ", part.ContentMd5, "Expected ContentMd5 to be updated");
Assert.IsTrue(part.Headers.Contains(HeaderId.ContentMd5), "Expected header to exist");
part.ContentMd5 = null;
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
Assert.IsFalse(part.Headers.Contains(HeaderId.ContentMd5), "Expected header to be removed");
part.Headers.Add(HeaderId.ContentMd5, "XYZ");
Assert.AreEqual("XYZ", part.ContentMd5, "Expected ContentMd5 to be set again");
part.Headers.Remove(HeaderId.ContentMd5);
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
part.ContentMd5 = "XYZ";
part.Headers.Clear();
Assert.IsNull(part.ContentMd5, "Expected ContentMd5 to be null again");
Assert.Throws <InvalidOperationException> (() => part.ComputeContentMd5());
Assert.IsFalse(part.VerifyContentMd5());
part = new TextPart("plain")
{
Text = "Hello, World.\n\nLet's check the MD5 sum of this text!\n"
};
var md5sum = part.ComputeContentMd5();
Assert.AreEqual("8criUiOQmpfifOuOmYFtEQ==", md5sum, "ComputeContentMd5 text/*");
// re-encode the base64'd md5sum using a hex encoding so we can easily compare to the output of `md5sum` command-line tools
var decoded = Convert.FromBase64String(md5sum);
var encoded = new StringBuilder();
for (int i = 0; i < decoded.Length; i++)
{
encoded.Append(decoded[i].ToString("x2"));
}
Assert.AreEqual("f1cae25223909a97e27ceb8e99816d11", encoded.ToString(), "md5sum text/*");
part.ContentMd5 = md5sum;
Assert.IsTrue(part.VerifyContentMd5(), "VerifyContentMd5");
}
public void TestMimePartContentObject()
{
byte[] data = Encoding.ASCII.GetBytes("abcd");
// Checksum will be wrong if content is encoded in any way.
string checksum;
using (var md5 = MD5.Create())
checksum = Convert.ToBase64String(md5.ComputeHash(data));
var msg = new MimePart("application", "octet-stream",
new ContentObject(new MemoryStream(data), ContentEncoding.Binary)
);
Assert.AreEqual(checksum, msg.ComputeContentMd5(), "Content MD5 is wrong");
Assert.AreEqual(ContentEncoding.Binary, msg.ContentObject.Encoding, "ContentEncoding is wrong");
}
