public async Task FillCacheWithoutRemovingClients()
{
int maxClientCount = 10;
var clientWrapperList = new List <(ResourceWrapper <GrpcCopyClient> Wrapper, GrpcCopyClient Client)>();
_clientCache = new GrpcCopyClientCache(_context, maxClientCount: maxClientCount, maxClientAgeMinutes: 63, waitBetweenCleanupMinutes: 30, bufferSize: 65536);
for (int i = 0; i < maxClientCount; i++)
{
var clientWrapper = await _clientCache.CreateAsync(LocalHost, i, true);
clientWrapperList.Add((clientWrapper, clientWrapper.Value));
}
// Create new clients for every port
Assert.Equal(maxClientCount, _clientCache.Counter.GetCounterValue(ResourcePoolCounters.Created));
// Zero clients were cleaned
Assert.Equal(0, _clientCache.Counter.GetCounterValue(ResourcePoolCounters.Cleaned));
// Zero clients were reused
Assert.Equal(0, _clientCache.Counter.GetCounterValue(ResourcePoolCounters.Reused));
foreach (var c in clientWrapperList)
{
c.Wrapper._lastUseTime -= TimeSpan.FromDays(1);
c.Wrapper.Dispose();
}
await _clientCache.CleanupAsync();
// All clients were cleaned
Assert.Equal(maxClientCount, _clientCache.Counter.GetCounterValue(ResourcePoolCounters.Cleaned));
}
public async Task ValidateBackgroundCleanup()
{
List <GrpcCopyClient> clientList = new List <GrpcCopyClient>();
var key = new GrpcCopyClientKey(LocalHost, 11, true);
ResourceWrapper <GrpcCopyClient> clientWrapper;
using (clientWrapper = await _clientCache.CreateAsync(key.Host, key.GrpcPort, key.UseCompression))
{
clientList.Add(clientWrapper.Value);
clientWrapper._lastUseTime = DateTime.UtcNow - TimeSpan.FromHours(2);
}
// Start cleanup now; don't wait for another loop
await _clientCache.CleanupAsync(force : false, numberToRelease : int.MaxValue);
var newClient = await _clientCache.CreateAsync(key.Host, key.GrpcPort, key.UseCompression);
clientList.Add(newClient.Value);
// If we found a different client, then cleanup successfully removed the original client
Assert.NotSame(newClient.Value, clientWrapper.Value);
Assert.Equal(1, newClient.Uses);
}