595 lines
17 KiB
C#
595 lines
17 KiB
C#
// DnsTest.cs - NUnit Test Cases for the System.Net.Dns class
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//
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// Authors:
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// Mads Pultz (mpultz@diku.dk)
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// Martin Willemoes Hansen (mwh@sysrq.dk)
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//
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// (C) 2001 Mads Pultz
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// (C) 2003 Martin Willemoes Hansen
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//
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using System;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Threading;
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using NUnit.Framework;
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namespace MonoTests.System.Net
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{
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[TestFixture]
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public class DnsTest
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{
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private String site1Name = "google-public-dns-a.google.com",
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site1Dot = "8.8.8.8",
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site2Name = "google-public-dns-b.google.com",
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site2Dot = "8.8.4.4",
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noneExistingSite = "unlikely.xamarin.com";
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private uint site1IP = 134744072, site2IP = 134743044; // Big-Endian
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void AsyncGetHostByName ()
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{
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IAsyncResult async = Dns.BeginGetHostByName (site1Name, null, null);
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IPHostEntry entry = Dns.EndGetHostByName (async);
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SubTestValidIPHostEntry (entry);
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Assert.IsTrue (entry.HostName == "google-public-dns-a.google.com");
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void AsyncGetHostByNameCallback ()
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{
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var evt = new ManualResetEvent (false);
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Exception ex = null;
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Dns.BeginGetHostByName (site1Name, new AsyncCallback ((IAsyncResult ar) =>
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{
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try {
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IPHostEntry h;
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h = Dns.EndGetHostByName (ar);
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SubTestValidIPHostEntry (h);
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} catch (Exception e) {
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ex = e;
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} finally {
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evt.Set ();
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}
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}), null);
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Assert.IsTrue (evt.WaitOne (TimeSpan.FromSeconds (60)), "Wait");
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Assert.IsNull (ex, "Exception");
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void AsyncResolve ()
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{
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IAsyncResult async = Dns.BeginResolve (site1Dot, null, null);
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IPHostEntry entry = Dns.EndResolve (async);
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SubTestValidIPHostEntry (entry);
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var ip = GetIPv4Address (entry);
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Assert.AreEqual (site1Dot, ip.ToString ());
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void AsyncResolveCallback ()
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{
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var evt = new ManualResetEvent (false);
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Exception ex = null;
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Dns.BeginResolve (site1Name, new AsyncCallback ((IAsyncResult ar) =>
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{
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try {
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IPHostEntry h = Dns.EndResolve (ar);
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SubTestValidIPHostEntry (h);
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} catch (Exception e) {
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ex = e;
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} finally {
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evt.Set ();
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}
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}), null);
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Assert.IsTrue (evt.WaitOne (TimeSpan.FromSeconds (60)), "Wait");
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Assert.IsNull (ex, "Exception");
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}
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[Test]
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public void BeginGetHostAddresses_HostNameOrAddress_Null ()
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{
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try {
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Dns.BeginGetHostAddresses (
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(string) null,
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostName", ex.ParamName, "#5");
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}
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}
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[Test]
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public void BeginGetHostAddresses_HostNameOrAddress_UnspecifiedAddress ()
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{
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// IPv4
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try {
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Dns.BeginGetHostAddresses (
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"0.0.0.0",
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#A1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#A5");
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}
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// IPv6
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try {
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Dns.BeginGetHostAddresses (
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"::0",
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#B5");
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}
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}
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void ShouldntBeCalled (IAsyncResult ar)
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{
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Assert.Fail ("Should not be called");
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}
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[Test]
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public void GetHostAddresses_HostNameOrAddress_Null ()
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{
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try {
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Dns.GetHostAddresses ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#5");
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}
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}
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[Test]
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public void GetHostAddresses_HostNameOrAddress_UnspecifiedAddress ()
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{
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// IPv4
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try {
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Dns.GetHostAddresses ("0.0.0.0");
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Assert.Fail ("#A1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#A5");
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}
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// IPv6
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try {
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Dns.GetHostAddresses ("::0");
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#B5");
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}
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}
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[Test]
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public void GetHostName ()
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{
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string hostName = Dns.GetHostName ();
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Assert.IsNotNull (hostName);
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void GetHostByName ()
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{
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SubTestGetHostByName (site1Name, site1Dot);
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SubTestGetHostByName (site2Name, site2Dot);
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try {
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var entry = Dns.GetHostByName (noneExistingSite);
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/*
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* Work around broken t-online.de DNS Server.
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*
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* T-Online's DNS Server for DSL Customers resolves
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* non-exisitng domain names to
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* http://navigationshilfe1.t-online.de/dnserror?url=....
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* instead of reporting an error.
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*/
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var navigationshilfe1 = IPAddress.Parse ("80.156.86.78");
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var navigationshilfe2 = IPAddress.Parse ("62.157.140.133");
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foreach (var addr in entry.AddressList) {
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if (addr.Equals (navigationshilfe1) || addr.Equals (navigationshilfe2))
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return;
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}
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Assert.Fail ("Should raise a SocketException (assuming that '" + noneExistingSite + "' does not exist)");
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} catch (SocketException) {
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}
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}
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static IPAddress GetIPv4Address (IPHostEntry h)
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{
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var al = h.AddressList.FirstOrDefault (x => x.AddressFamily == AddressFamily.InterNetwork);
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if (al == null)
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Assert.Ignore ("Could not resolve an IPv4 address as required by this test case, e.g. running on an IPv6 only network");
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return al;
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}
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void SubTestGetHostByName (string siteName, string siteDot)
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{
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IPHostEntry h = Dns.GetHostByName (siteName);
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SubTestValidIPHostEntry (h);
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Assert.AreEqual (siteName, h.HostName, "siteName");
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var ip = GetIPv4Address (h);
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Assert.AreEqual (siteDot, ip.ToString (), "siteDot");
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}
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[Test]
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public void GetHostByName_HostName_Null ()
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{
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try {
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Dns.GetHostByName ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostName", ex.ParamName, "#5");
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}
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}
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[Test]
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public void GetHostByAddressString_Address_Null ()
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{
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try {
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Dns.GetHostByAddress ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("address", ex.ParamName, "#5");
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}
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}
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[Test]
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[ExpectedException (typeof (SocketException))]
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public void GetHostByAddressString2 ()
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{
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Dns.GetHostByAddress ("123.255.23");
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}
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[Test]
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[ExpectedException (typeof (FormatException))]
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public void GetHostByAddressString3 ()
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{
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Dns.GetHostByAddress ("123.256.34.10");
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}
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[Test, ExpectedException (typeof (FormatException))]
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public void GetHostByAddressString4 ()
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{
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Dns.GetHostByAddress ("not an IP address");
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}
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[Test]
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public void GetHostByAddressString5 ()
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{
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Dns.GetHostByAddress (site1Dot);
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}
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[Test]
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public void GetHostByAddressIPAddress_Address_Null ()
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{
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try {
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Dns.GetHostByAddress ((IPAddress) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("address", ex.ParamName, "#5");
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}
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}
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[Test]
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public void GetHostByAddressIPAddress2 ()
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{
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IPAddress addr = new IPAddress (IPAddress.NetworkToHostOrder ((int) site1IP));
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IPHostEntry h = Dns.GetHostByAddress (addr);
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SubTestValidIPHostEntry (h);
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var ip = GetIPv4Address (h);
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Assert.AreEqual (addr.ToString (), ip.ToString ());
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}
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[Test]
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public void GetHostByAddressIPAddress3 ()
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{
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IPAddress addr = new IPAddress (IPAddress.NetworkToHostOrder ((int) site2IP));
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IPHostEntry h = Dns.GetHostByAddress (addr);
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SubTestValidIPHostEntry (h);
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var ip = GetIPv4Address (h);
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Assert.AreEqual (addr.ToString (), ip.ToString ());
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void BeginResolve_HostName_Null ()
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{
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try {
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Dns.BeginResolve ((string) null,
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostName", ex.ParamName, "#5");
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}
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void Resolve ()
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{
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SubTestResolve (site1Name);
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SubTestResolve (site2Name);
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SubTestResolve (site1Dot);
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SubTestResolve (site2Dot);
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}
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void SubTestResolve (string addr)
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{
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IPHostEntry h = Dns.Resolve (addr);
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SubTestValidIPHostEntry (h);
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}
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[Test]
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void Resolve_HostName_Null ()
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{
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try {
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Dns.Resolve ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostName", ex.ParamName, "#5");
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}
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}
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[Test] // BeginGetHostEntry (IPAddress, AsyncCallback, Object)
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void BeginGetHostEntry1_Address_Null ()
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{
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try {
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Dns.BeginGetHostEntry (
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(IPAddress) null,
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("address", ex.ParamName, "#5");
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}
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}
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[Test] // BeginGetHostEntry (String, AsyncCallback, Object)
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void BeginGetHostEntry2_HostNameOrAddress_Null ()
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{
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try {
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Dns.BeginGetHostEntry (
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(string) null,
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new AsyncCallback (ShouldntBeCalled),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostName", ex.ParamName, "#5");
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}
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}
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[Test] // BeginGetHostEntry (String, AsyncCallback, Object)
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void BeginGetHostEntry2_HostNameOrAddress_UnspecifiedAddress ()
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{
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// IPv4
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try {
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Dns.BeginGetHostEntry (
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"0.0.0.0",
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new AsyncCallback (GetHostEntryCallback),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#5");
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}
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// IPv6
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try {
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Dns.BeginGetHostEntry (
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"::0",
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new AsyncCallback (GetHostEntryCallback),
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null);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// IPv4 address 0.0.0.0 and IPv6 address ::0 are
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// unspecified addresses that cannot be used as
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// a target address
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#5");
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}
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}
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void GetHostEntryCallback (IAsyncResult ar)
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{
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IPHostEntry hostEntry = Dns.EndGetHostEntry (ar);
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Assert.IsNotNull (hostEntry);
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}
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[Test] // GetHostEntry (IPAddress)
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public void GetHostEntry1_Address_Null ()
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{
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try {
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Dns.GetHostEntry ((IPAddress) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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Assert.AreEqual ("address", ex.ParamName, "#5");
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}
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}
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[Test] // GetHostEntry (String)
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#if FEATURE_NO_BSD_SOCKETS
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[ExpectedException (typeof (PlatformNotSupportedException))]
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#endif
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public void GetHostEntry2 ()
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{
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Dns.GetHostEntry (site1Name); // hostname
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Dns.GetHostEntry (site1Dot); // IP address
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}
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[Test] // GetHostEntry (String)
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public void GetHostEntry2_HostNameOrAddress_Null ()
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{
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try {
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Dns.GetHostEntry ((string) null);
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Assert.Fail ("#1");
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} catch (ArgumentNullException ex) {
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Assert.AreEqual (typeof (ArgumentNullException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
|
|
Assert.IsNotNull (ex.Message, "#4");
|
|
Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#5");
|
|
}
|
|
}
|
|
|
|
[Test] // GetHostEntry (String)
|
|
public void GetHostEntry2_HostNameOrAddress_UnspecifiedAddress ()
|
|
{
|
|
// IPv4
|
|
try {
|
|
Dns.GetHostEntry ("0.0.0.0");
|
|
Assert.Fail ("#A1");
|
|
} catch (ArgumentException ex) {
|
|
// IPv4 address 0.0.0.0 and IPv6 address ::0 are
|
|
// unspecified addresses that cannot be used as
|
|
// a target address
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
|
|
Assert.IsNull (ex.InnerException, "#A3");
|
|
Assert.IsNotNull (ex.Message, "#A4");
|
|
Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#A5");
|
|
}
|
|
|
|
// IPv6
|
|
try {
|
|
Dns.GetHostEntry ("::0");
|
|
Assert.Fail ("#B1");
|
|
} catch (ArgumentException ex) {
|
|
// IPv4 address 0.0.0.0 and IPv6 address ::0 are
|
|
// unspecified addresses that cannot be used as
|
|
// a target address
|
|
Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
|
|
Assert.IsNull (ex.InnerException, "#B3");
|
|
Assert.IsNotNull (ex.Message, "#B4");
|
|
Assert.AreEqual ("hostNameOrAddress", ex.ParamName, "#B5");
|
|
}
|
|
}
|
|
|
|
void SubTestValidIPHostEntry (IPHostEntry h)
|
|
{
|
|
Assert.IsNotNull (h.HostName, "HostName not null");
|
|
Assert.IsNotNull (h.AddressList, "AddressList not null");
|
|
Assert.IsTrue (h.AddressList.Length > 0, "AddressList.Length");
|
|
}
|
|
|
|
[Test]
|
|
public void GetHostEntry_StringEmpty ()
|
|
{
|
|
Dns.GetHostEntry (string.Empty);
|
|
}
|
|
|
|
/* This isn't used anymore, but could be useful for debugging
|
|
static void printIPHostEntry(IPHostEntry h)
|
|
{
|
|
Console.WriteLine("----------------------------------------------------");
|
|
Console.WriteLine("Host name:");
|
|
Console.WriteLine(h.HostName);
|
|
Console.WriteLine("IP addresses:");
|
|
IPAddress[] list = h.AddressList;
|
|
for(int i = 0; i < list.Length; ++i)
|
|
Console.WriteLine(list[i]);
|
|
Console.WriteLine("Aliases:");
|
|
string[] aliases = h.Aliases;
|
|
for(int i = 0; i < aliases.Length; ++i)
|
|
Console.WriteLine(aliases[i]);
|
|
Console.WriteLine("----------------------------------------------------");
|
|
}
|
|
*/
|
|
}
|
|
}
|