using System.Net.Sockets; using Microsoft.VisualStudio.TestTools.UnitTesting; namespace Renci.SshNet.Tests.Classes { [TestClass] public class SftpClientTest_Connect { [TestMethod] public void Connect_HostNameInvalid_ShouldThrowSocketExceptionWithErrorCodeHostNotFound() { var connectionInfo = new ConnectionInfo("invalid.", 40, "user", new KeyboardInteractiveAuthenticationMethod("user")); var sftpClient = new SftpClient(connectionInfo); try { sftpClient.Connect(); Assert.Fail(); } catch (SocketException ex) { Assert.IsTrue(ex.SocketErrorCode is SocketError.HostNotFound or SocketError.TryAgain); } } [TestMethod] public void Connect_ProxyHostNameInvalid_ShouldThrowSocketExceptionWithErrorCodeHostNotFound() { var connectionInfo = new ConnectionInfo("localhost", 40, "user", ProxyTypes.Http, "invalid.", 80, "proxyUser", "proxyPwd", new KeyboardInteractiveAuthenticationMethod("user")); var sftpClient = new SftpClient(connectionInfo); try { sftpClient.Connect(); Assert.Fail(); } catch (SocketException ex) { Assert.IsTrue(ex.SocketErrorCode is SocketError.HostNotFound or SocketError.TryAgain); } } } }