public void TransportProducerPoolAllowsTakingTheRightTransportProducer(string partitionId)
{
var transportProducer = new ObservableTransportProducerMock();
var partitionProducer = new ObservableTransportProducerMock(partitionId);
var connection = new MockConnection(() => partitionProducer);
var retryPolicy = new EventHubProducerClientOptions().RetryOptions.ToRetryPolicy();
var startingPool = new ConcurrentDictionary <string, TransportProducerPool.PoolItem>
{
["0"] = new TransportProducerPool.PoolItem("0", partitionProducer)
};
TransportProducerPool transportProducerPool = new TransportProducerPool(connection, retryPolicy, eventHubProducer: transportProducer);
var returnedProducer = transportProducerPool.GetPooledProducer(partitionId).TransportProducer as ObservableTransportProducerMock;
Assert.That(returnedProducer.PartitionId, Is.EqualTo(partitionId));
}
public async Task TransportProducerPoolAllowsConfiguringRemoveAfter()
{
var transportProducer = new ObservableTransportProducerMock();
var connection = new MockConnection(() => transportProducer);
var retryPolicy = new EventHubProducerClientOptions().RetryOptions.ToRetryPolicy();
var startingPool = new ConcurrentDictionary <string, TransportProducerPool.PoolItem>
{
["0"] = new TransportProducerPool.PoolItem("0", transportProducer)
};
TransportProducerPool transportProducerPool = new TransportProducerPool(connection, retryPolicy, startingPool);
var pooledProducer = transportProducerPool.GetPooledProducer("0", TimeSpan.FromMinutes(-1));
await using (var _ = pooledProducer.ConfigureAwait(false))
{
};
GetExpirationCallBack(transportProducerPool).Invoke(null);
Assert.That(transportProducer.CloseCallCount, Is.EqualTo(1));
}
public async Task ExpireRemovesTheRequestedItem()
{
var wasFactoryCalled = false;
var transportProducer = new ObservableTransportProducerMock();
var startingPool = new ConcurrentDictionary <string, TransportProducerPool.PoolItem>
{
["0"] = new TransportProducerPool.PoolItem("0", transportProducer),
["1"] = new TransportProducerPool.PoolItem("1", transportProducer),
["2"] = new TransportProducerPool.PoolItem("2", transportProducer),
};
Func <string, TransportProducer> producerFactory = partition =>
{
wasFactoryCalled = true;
return(transportProducer);
};
var transportProducerPool = new TransportProducerPool(producerFactory, pool: startingPool, eventHubProducer: transportProducer);
// Validate the initial state.
Assert.That(startingPool.TryGetValue("0", out _), Is.True, "The requested partition should appear in the pool.");
Assert.That(wasFactoryCalled, Is.False, "No producer should not have been created.");
Assert.That(transportProducer.CloseCallCount, Is.EqualTo(0), "The producer should not have been closed.");
// Expire the producer and validate the removal state.
await transportProducerPool.ExpirePooledProducerAsync("0");
Assert.That(startingPool.TryGetValue("0", out _), Is.False, "The requested partition should have been removed.");
Assert.That(transportProducer.CloseCallCount, Is.EqualTo(1), "The producer should have been closed.");
Assert.That(wasFactoryCalled, Is.False, "The requested partition should not have been created.");
// Request the producer again and validate a new producer is created.
Assert.That(transportProducerPool.GetPooledProducer("0"), Is.Not.Null, "The requested partition should be available.");
Assert.That(wasFactoryCalled, Is.True, "A new producer for the requested partition should have been created.");
}
public async Task TransportProducerPoolTracksAProducerUsage()
{
DateTimeOffset oneMinuteAgo = DateTimeOffset.UtcNow.Subtract(TimeSpan.FromMinutes(1));
var transportProducer = new ObservableTransportProducerMock();
var connection = new MockConnection(() => transportProducer);
var retryPolicy = new EventHubProducerClientOptions().RetryOptions.ToRetryPolicy();
var startingPool = new ConcurrentDictionary <string, TransportProducerPool.PoolItem>
{
// An expired item in the pool
["0"] = new TransportProducerPool.PoolItem("0", transportProducer, removeAfter: oneMinuteAgo)
};
TransportProducerPool transportProducerPool = new TransportProducerPool(connection, retryPolicy, startingPool);
var pooledProducer = transportProducerPool.GetPooledProducer("0");
startingPool.TryGetValue("0", out var poolItem);
await using (pooledProducer)
{
Assert.That(poolItem.ActiveInstances.Count, Is.EqualTo(1), "The usage of a transport producer should be tracked.");
}
Assert.That(poolItem.ActiveInstances.Count, Is.EqualTo(0), "After usage an active instance should be removed from the pool.");
}