mcs/class/System/Test/System.Net/DnsTest.cs

   1 // DnsTest.cs - NUnit Test Cases for the System.Net.Dns class\r
   2 //\r
   3 // Authors: \r
   4 //   Mads Pultz (mpultz@diku.dk)\r
   5 //   Martin Willemoes Hansen (mwh@sysrq.dk)\r
   6 //\r
   7 // (C) 2001 Mads Pultz\r
   8 // (C) 2003 Martin Willemoes Hansen\r
   9 // \r
  10 // This test assumes the following:\r
  11 // 1) The following Internet sites exist:\r
  12 //        www.go-mono.com with IP address 64.14.94.188\r
  13 //        info.diku.dk with IP address 130.225.96.4\r
  14 // 2) The following DNS name does not exist:\r
  15 //        www.hopefullydoesnotexist.dk\r
  16 //\r
  17 \r
  18 using NUnit.Framework;\r
  19 using System;\r
  20 using System.Net;\r
  21 using System.Net.Sockets;\r
  22 using System.Threading;\r
  23 using System.Collections;\r
  24 \r
  25 namespace MonoTests.System.Net {\r
  26 \r
  27 [TestFixture]\r
  28 public class DnsTest : Assertion {\r
  29         \r
  30         private String site1Name = "www.go-mono.com",\r
  31                 site1Dot = "64.14.94.188",\r
  32                 site2Name = "info.diku.dk",\r
  33                 site2Dot = "130.225.96.4",\r
  34                 noneExistingSite = "www.unlikely.novell.com";\r
  35         private uint site1IP = 2180692201, site2IP = 2195808260; // Big-Endian\r
  36         \r
  37         private void GetHostByNameCallback (IAsyncResult ar)\r
  38         {\r
  39                 IPHostEntry h;\r
  40                 h = Dns.EndGetHostByName(ar);\r
  41                 SubTestValidIPHostEntry(h);\r
  42         }\r
  43 \r
  44         [Test]\r
  45         public void AsyncGetHostByName(){\r
  46                 IAsyncResult r;\r
  47                 r = Dns.BeginGetHostByName (site1Name, new AsyncCallback (GetHostByNameCallback), null);\r
  48                 \r
  49                 IAsyncResult async = Dns.BeginGetHostByName (site1Name, null, null);\r
  50                 IPHostEntry entry = Dns.EndGetHostByName (async);                \r
  51                 SubTestValidIPHostEntry(entry);\r
  52                 AssertEquals ("#1", "www.go-mono.com", entry.HostName);\r
  53         }\r
  54 \r
  55         private void ResolveCallback (IAsyncResult ar)\r
  56         {\r
  57                 IPHostEntry h = Dns.EndResolve (ar);\r
  58                 SubTestValidIPHostEntry (h);\r
  59         }\r
  60         \r
  61         [Test]\r
  62         public void AsyncResolve() {\r
  63                 IAsyncResult r;\r
  64                 r = Dns.BeginResolve (site1Name, new AsyncCallback (ResolveCallback), null);\r
  65 \r
  66                 IAsyncResult async = Dns.BeginResolve (site1Dot, null, null);\r
  67                 IPHostEntry entry = Dns.EndResolve (async);                \r
  68                 SubTestValidIPHostEntry(entry);\r
  69                 AssertEquals ("#1", site1Dot, entry.HostName);\r
  70         }\r
  71         \r
  72         [Test]\r
  73         public void GetHostName() {\r
  74                 string hostName = Dns.GetHostName();\r
  75                 AssertNotNull (hostName);\r
  76         }\r
  77         \r
  78         private void SubTestGetHostByName(string siteName, string siteDot) {\r
  79                 IPHostEntry h = Dns.GetHostByName(siteName);\r
  80                 SubTestValidIPHostEntry(h);\r
  81                 AssertEquals ("siteName", siteName, h.HostName);\r
  82                 AssertEquals ("siteDot", siteDot, h.AddressList[0].ToString());\r
  83         }\r
  84         \r
  85         [Test]\r
  86         public void GetHostByName() {\r
  87                 SubTestGetHostByName(site1Name, site1Dot);\r
  88                 SubTestGetHostByName(site2Name, site2Dot);\r
  89                 try {\r
  90                         Dns.GetHostByName(noneExistingSite);\r
  91                         Fail("Should raise a SocketException (assuming that '" + noneExistingSite + "' does not exist)");\r
  92                 } catch (SocketException) {\r
  93                 } \r
  94                 try {\r
  95                         Dns.GetHostByName(null);\r
  96                         Fail("Should raise an ArgumentNullException");\r
  97                 } catch (ArgumentNullException) {\r
  98                 } \r
  99         }\r
 100         \r
 101         private void SubTestGetHostByAddressString(string addr) {\r
 102                 IPHostEntry h = Dns.GetHostByAddress(addr);\r
 103                 SubTestValidIPHostEntry(h);\r
 104         }\r
 105         \r
 106         [Test, ExpectedException (typeof (ArgumentNullException))]\r
 107         public void GetHostByAddressString1() {\r
 108                 String addr = null;\r
 109                 Dns.GetHostByAddress(addr);\r
 110         }\r
 111 \r
 112         [Test, ExpectedException (typeof (SocketException))]\r
 113         public void GetHostByAddressString2() {\r
 114                 Dns.GetHostByAddress ("123.255.23");\r
 115         }\r
 116 \r
 117         [Test, ExpectedException (typeof (FormatException))]\r
 118         public void GetHostByAddressString3() {\r
 119                 Dns.GetHostByAddress ("123.256.34.10");\r
 120         }\r
 121 \r
 122         [Test, ExpectedException (typeof (FormatException))]\r
 123         public void GetHostByAddressString4() {\r
 124                 Dns.GetHostByAddress ("not an IP address");\r
 125         }\r
 126 \r
 127         [Test]\r
 128 #if ONLY_1_1\r
 129         [ExpectedException (typeof (SocketException))]\r
 130 #endif\r
 131         public void GetHostByAddressString5() {\r
 132                 Dns.GetHostByAddress (site1Dot);\r
 133         }\r
 134 \r
 135         [Test, ExpectedException (typeof (ArgumentNullException))]\r
 136         public void GetHostByAddressIPAddress1() {\r
 137                 IPAddress addr = null;\r
 138                 Dns.GetHostByAddress(addr);\r
 139         }\r
 140 \r
 141         public void GetHostByAddressIPAddress2() {\r
 142                 IPAddress addr = new IPAddress(IPAddress.NetworkToHostOrder((int)site1IP));\r
 143                 IPHostEntry h = Dns.GetHostByAddress(addr);\r
 144                 SubTestValidIPHostEntry(h);\r
 145                 AssertEquals (addr.ToString(), h.AddressList[0].ToString());\r
 146         }\r
 147         \r
 148         public void GetHostByAddressIPAddress3() {\r
 149                 IPAddress addr = new IPAddress(IPAddress.NetworkToHostOrder((int)site2IP));\r
 150                 IPHostEntry h = Dns.GetHostByAddress(addr);\r
 151                 SubTestValidIPHostEntry(h);\r
 152                 AssertEquals (addr.ToString(), h.AddressList[0].ToString());\r
 153         }\r
 154 \r
 155         private void SubTestResolve(string addr) {\r
 156                 IPHostEntry h = Dns.Resolve(addr);\r
 157                 SubTestValidIPHostEntry(h);\r
 158         }\r
 159         \r
 160         [Test]\r
 161         public void Resolve() {\r
 162                 SubTestResolve(site1Name);\r
 163                 SubTestResolve(site2Name);\r
 164                 SubTestResolve(site1Dot);\r
 165                 SubTestResolve(site2Dot);\r
 166         }\r
 167 \r
 168 #if NET_2_0\r
 169         [Test]\r
 170         public void GetHostEntry ()\r
 171         {\r
 172                 Dns.GetHostEntry (site1Name); // hostname\r
 173                 Dns.GetHostEntry (site1Dot); // IP address\r
 174         }\r
 175 #endif\r
 176 \r
 177         private void SubTestValidIPHostEntry(IPHostEntry h) {\r
 178                 AssertNotNull ("HostName not null", h.HostName);\r
 179                 AssertNotNull ("AddressList not null", h.AddressList);\r
 180                 Assert ("AddressList.Length", h.AddressList.Length > 0);\r
 181         }\r
 182 /* This isn't used anymore, but could be useful for debugging         \r
 183         private static void printIPHostEntry(IPHostEntry h)\r
 184         {\r
 185                 Console.WriteLine("----------------------------------------------------");\r
 186                 Console.WriteLine("Host name:");\r
 187                 Console.WriteLine(h.HostName);\r
 188                 Console.WriteLine("IP addresses:");\r
 189                 IPAddress[] list = h.AddressList;\r
 190                 for(int i = 0; i < list.Length; ++i)\r
 191                         Console.WriteLine(list[i]);\r
 192                 Console.WriteLine("Aliases:");\r
 193                 string[] aliases = h.Aliases;\r
 194                 for(int i = 0; i < aliases.Length; ++i)\r
 195                         Console.WriteLine(aliases[i]);\r
 196                 Console.WriteLine("----------------------------------------------------");\r
 197         }\r
 198 */\r
 199 }\r
 200 \r
 201 }\r