public void NodeDisposeTest()
{
// Memcache client config
var config = new MemcacheClientConfiguration
{
TransportFactory = (_, __, r, s, ___, ____) =>
{
var transport = new TransportMock(r) { IsAlive = true, Setup = s };
if (s != null)
s(transport);
return transport;
},
PoolSize = 1,
};
var node = new MemcacheNode(null, config);
// TransportMock does not put back the transport in the pool after the TrySend
Assert.IsTrue(node.TrySend(new NoOpRequest(), 5000), "Unable to send a request through the node");
// Dispose the node after a certain delay
ThreadPool.QueueUserWorkItem((o) => { Thread.Sleep(500); node.Dispose(); });
// The following TrySend will block because the transport pool is empty
Assert.DoesNotThrow(() => node.TrySend(new NoOpRequest(), 1000), "The TrySend should not throw an exception");
}
public void SyncNodeDeadDetection()
{
bool aliveness = true;
var transportMocks = new List<TransportMock>();
var config = new MemcacheClientConfiguration
{
DeadTimeout = TimeSpan.FromSeconds(1),
TransportFactory = (_, __, r, s, ___, ____) =>
{
var transport = new TransportMock(r) { IsAlive = aliveness, Setup = s };
transportMocks.Add(transport);
if (s != null)
s(transport);
return transport;
},
PoolSize = 2,
};
var node = new MemcacheNode(null, config);
CollectionAssert.IsNotEmpty(transportMocks, "No transport has been created by the node");
Assert.IsTrue(node.TrySend(new NoOpRequest(), 5000), "Unable to send a request through the node");
// creation of new transport will set them as dead
aliveness = false;
foreach (var transport in transportMocks)
transport.IsAlive = false;
Assert.IsFalse(node.TrySend(new NoOpRequest(), 5000), "The node did not failed with all transport deads");
foreach (var transport in transportMocks)
transport.IsAlive = true;
Assert.IsFalse(node.IsDead, "The node is still dead, should be alive now !");
Assert.IsTrue(node.TrySend(new NoOpRequest(), 5000), "Unable to send a request throught the node after it's alive");
}