public async Task Should_accept_a_completed_node()
{
var tracker = new NodeTracker <SimpleValue>(1000, TimeSpan.FromSeconds(30), TimeSpan.FromSeconds(60), () => DateTime.UtcNow);
var observer = new NodeObserver();
tracker.Connect(observer);
var pendingValue = new PendingValue <string, SimpleValue>("Hello", SimpleValueFactory.Healthy);
var nodeValueFactory = new NodeValueFactory <SimpleValue>(pendingValue, 100);
var node = new FactoryNode <SimpleValue>(nodeValueFactory);
tracker.Add(nodeValueFactory);
var value = await node.Value;
var observedNode = await observer.Value;
Assert.That(observedNode, Is.InstanceOf <BucketNode <SimpleValue> >());
}