System.Security.Cryptography.Pkcs.Pkcs9AttributeObject.CopyFrom C# (CSharp) Method

        public override void CopyFrom(System.Security.Cryptography.AsnEncodedData asnEncodedData)
        {
        }

 public static void Pkcs9AttributeCopyFromAsnNotAPkcs9Attribute()
 {
     // Pkcs9AttributeObject.CopyFrom(AsnEncodedData) refuses to accept any AsnEncodedData that isn't a Pkcs9AttributeObject-derived class. 
     Pkcs9AttributeObject p = new Pkcs9AttributeObject();
     byte[] rawData = "041e4d00790020004400650073006300720069007000740069006f006e000000".HexToByteArray();
     AsnEncodedData a = new AsnEncodedData(Oids.DocumentName, rawData);
     Assert.Throws<ArgumentException>(() => p.CopyFrom(a));
 }