public async Task PermanentlyDead()
{
var peer = new Peer
{
Id = "QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb",
Addresses = new MultiAddress[]
{
"/ip4/127.0.0.1/tcp/4040/ipfs/QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb"
}
};
var swarm = new Swarm {
LocalPeer = self
};
var manager = new PeerManager
{
Swarm = swarm,
InitialBackoff = TimeSpan.FromMilliseconds(100),
MaxBackoff = TimeSpan.FromMilliseconds(200),
};
Assert.AreEqual(0, manager.DeadPeers.Count);
try
{
await swarm.StartAsync();
await manager.StartAsync();
try
{
await swarm.ConnectAsync(peer);
}
catch { }
Assert.AreEqual(1, manager.DeadPeers.Count);
var end = DateTime.Now + TimeSpan.FromSeconds(6);
while (DateTime.Now <= end)
{
if (manager.DeadPeers[peer].NextAttempt == DateTime.MaxValue)
{
return;
}
}
Assert.Fail("not truely dead");
}
finally
{
await swarm.StopAsync();
await manager.StopAsync();
}
}
public async Task Backoff_Increases()
{
var peer = new Peer
{
Id = "QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTxx",
Addresses = new MultiAddress[]
{
"/ip4/127.0.0.1/tcp/4040/ipfs/QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTxx"
}
};
var swarm = new Swarm {
LocalPeer = self
};
var manager = new PeerManager
{
Swarm = swarm,
InitialBackoff = TimeSpan.FromMilliseconds(100),
};
Assert.AreEqual(0, manager.DeadPeers.Count);
try
{
await swarm.StartAsync();
await manager.StartAsync();
try
{
await swarm.ConnectAsync(peer);
}
catch { }
Assert.AreEqual(1, manager.DeadPeers.Count);
var end = DateTime.Now + TimeSpan.FromSeconds(4);
while (DateTime.Now <= end)
{
if (manager.DeadPeers[peer].Backoff > manager.InitialBackoff)
{
return;
}
}
Assert.Fail("backoff did not increase");
}
finally
{
await swarm.StopAsync();
await manager.StopAsync();
}
}
public void BlackListsThePeer()
{
var peer = new Peer {
Id = "QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb"
};
var manager = new PeerManager {
Swarm = new Swarm()
};
Assert.AreEqual(0, manager.DeadPeers.Count);
manager.SetNotReachable(peer);
Assert.IsFalse(manager.Swarm.IsAllowed((MultiAddress)"/p2p/QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb"));
manager.SetReachable(peer);
Assert.IsTrue(manager.Swarm.IsAllowed((MultiAddress)"/p2p/QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb"));
}
public void IsNotReachable()
{
var peer = new Peer {
Id = "QmXFX2P5ammdmXQgfqGkfswtEVFsZUJ5KeHRXQYCTdiTAb"
};
var manager = new PeerManager {
Swarm = new Swarm()
};
Assert.AreEqual(0, manager.DeadPeers.Count);
manager.SetNotReachable(peer);
Assert.IsTrue(manager.DeadPeers.ContainsKey(peer));
Assert.AreEqual(1, manager.DeadPeers.Count);
manager.SetNotReachable(peer);
Assert.IsTrue(manager.DeadPeers.ContainsKey(peer));
Assert.AreEqual(1, manager.DeadPeers.Count);
manager.SetReachable(peer);
Assert.IsFalse(manager.DeadPeers.ContainsKey(peer));
Assert.AreEqual(0, manager.DeadPeers.Count);
}