public void AddStoreShouldAddStore()
{
Store receivedStore = null;
var expected = new Store();
var addStoreEvent = _eventAggregator.GetEvent <PubSubEvent <AddStoreEvent> >();
addStoreEvent.Subscribe(receivedEvent => receivedStore = receivedEvent.Store);
_storageSystem.AddStore(expected);
Task.Delay(25).Wait();
_storageSystem.Stores.Count.Should().Be(1);
var store = _storageSystem.Stores.First();
store.Should().Be(expected);
receivedStore.Should().Be(expected);
}