public void TestGetRegisteredUsers()
 {
     UserCache userCache = null;
     try
     {
         userCache = new UserCache();
         List<User> userList = new List<User>(userCache.GetRegisteredUsers());
         Assert.That(userList.Count, NUnit.Framework.Is.EqualTo(0));
         string username1 = "user1";
         string hostname1 = username1 + "-ws";
         string username2 = "user2";
         string hostname2 = string.Empty;
         RegistrationRequest request1 = new RegistrationRequest(hostname1, username1);
         RegistrationRequest request2 = new RegistrationRequest(hostname2, username2);
         userCache.Register(request1);
         userCache.Register(request2);
         userList = new List<User>(userCache.GetRegisteredUsers());
         Assert.That(userList.Count, NUnit.Framework.Is.EqualTo(1));
         User user = userList[0];
         Assert.That(user.Hostname, NUnit.Framework.Is.EqualTo(hostname1));
         Assert.That(user.Username, NUnit.Framework.Is.EqualTo(username1));
     }
     finally
     {
         if (userCache != null)
         {
             userCache.Dispose();
         }
     }
 }