System.Net.Security.Tests.NegotiateStreamStreamToStreamTest.NegotiateStream_StreamToStream_Authentication_EmptyCredentials_Fails C# (CSharp) Method

        public void NegotiateStream_StreamToStream_Authentication_EmptyCredentials_Fails()
        {
            string targetName = "testTargetName";

            // Ensure there is no confusion between DefaultCredentials / DefaultNetworkCredentials and a
            // NetworkCredential object with empty user, password and domain.
            NetworkCredential emptyNetworkCredential = new NetworkCredential("", "", "");
            Assert.NotEqual(emptyNetworkCredential, CredentialCache.DefaultCredentials);
            Assert.NotEqual(emptyNetworkCredential, CredentialCache.DefaultNetworkCredentials);

            VirtualNetwork network = new VirtualNetwork();

            using (var clientStream = new VirtualNetworkStream(network, isServer: false))
            using (var serverStream = new VirtualNetworkStream(network, isServer: true))
            using (var client = new NegotiateStream(clientStream))
            using (var server = new NegotiateStream(serverStream))
            {
                Assert.False(client.IsAuthenticated);
                Assert.False(server.IsAuthenticated);

                Task[] auth = new Task[2];

                auth[0] = AuthenticateAsClientAsync(client, emptyNetworkCredential, targetName);
                auth[1] = AuthenticateAsServerAsync(server);

                bool finished = Task.WaitAll(auth, TestConfiguration.PassingTestTimeoutMilliseconds);
                Assert.True(finished, "Handshake completed in the allotted time");

                // Expected Client property values:
                Assert.True(client.IsAuthenticated);
                Assert.Equal(TokenImpersonationLevel.Identification, client.ImpersonationLevel);
                Assert.Equal(true, client.IsEncrypted);
                Assert.Equal(false, client.IsMutuallyAuthenticated);
                Assert.Equal(false, client.IsServer);
                Assert.Equal(true, client.IsSigned);
                Assert.Equal(false, client.LeaveInnerStreamOpen);

                IIdentity serverIdentity = client.RemoteIdentity;
                Assert.Equal("NTLM", serverIdentity.AuthenticationType);
                Assert.Equal(true, serverIdentity.IsAuthenticated);
                Assert.Equal(targetName, serverIdentity.Name);

                // Expected Server property values:
                Assert.True(server.IsAuthenticated);
                Assert.Equal(TokenImpersonationLevel.Identification, server.ImpersonationLevel);
                Assert.Equal(true, server.IsEncrypted);
                Assert.Equal(false, server.IsMutuallyAuthenticated);
                Assert.Equal(true, server.IsServer);
                Assert.Equal(true, server.IsSigned);
                Assert.Equal(false, server.LeaveInnerStreamOpen);

                IIdentity clientIdentity = server.RemoteIdentity;
                Assert.Equal("NTLM", clientIdentity.AuthenticationType);

                // TODO #5241: Behavior difference:
                Assert.Equal(false, clientIdentity.IsAuthenticated);
                // On .Net Desktop: Assert.Equal(true, clientIdentity.IsAuthenticated);

                IdentityValidator.AssertHasName(clientIdentity, @"NT AUTHORITY\ANONYMOUS LOGON");
            }
        }