public async Task IsAvailble_NotNat()
{
var nat = new Client(IPAddress.Parse("127.0.0.1"));
var q = await nat.IsAvailableAsync();
Assert.IsFalse(q);
}
public async Task Unresponsive_Nat()
{
using (var server = new MockNat())
{
var nat = new Client(server.Address)
{
MaxRetries = 1
};
var q = await nat.IsAvailableAsync();
Assert.IsFalse(q);
}
}
public async Task IsAvailable()
{
var response = new Response().ToByteArray();
using (var server = new MockNat())
{
server.RequestReceived += (s, req) => server.udp.Send(response, response.Length, req.RemoteEndPoint);
var nat = new Client(server.Address);
var q = await nat.IsAvailableAsync();
Assert.IsTrue(q);
}
}
/// <summary>
/// Gets the NATs.
/// </summary>
/// <returns>
/// A sequence of NAT clients that can be talked to,
/// </returns>
/// <remarks>
/// Asks each <see cref="GetGateways">gateways</see> if it supports
/// PCP or PMP. If true, then a <see cref="NatClient"/> is retuned.
/// </remarks>
public static IEnumerable <NatClient> GetNats()
{
foreach (var gateway in GetGateways())
{
NatClient nat = new Pcp.Client(gateway);
if (nat.IsAvailableAsync().Result)
{
yield return(nat);
continue;
}
nat = new Pmp.Client(gateway);
if (nat.IsAvailableAsync().Result)
{
yield return(nat);
continue;
}
}
}
