public void Setup()
{
_monitor = new Monitor();
_injected = new Injected();
var collection = new ServiceCollection();
//this registration is key, this is where the actions are associated with a middleware implementation.
collection.AddSingleton(typeof(BusMiddleWare<>), typeof(BusMiddleWare<>));
//register the Actions.
collection.AddTransient(typeof(ConsumerAction<>));
collection.AddSingleton(typeof(TestAction1<>));
collection.AddTransient(typeof(TestGenericAction<>));
//the framework we want to add middleware support with.
collection.AddSingleton<FakeBus>();
collection.AddSingleton(_monitor);
collection.AddSingleton(_injected);
//find all the IConsumer<T> interfaces
var consumers = this.GetType().Assembly.ExportedTypes.SelectMany(x =>
{
var interfaces = x.GetInterfaces()
.Where(interfaceType => interfaceType.IsGenericType)
.Where(interfaceType => typeof(IConsumer<>).IsAssignableFrom(interfaceType.GetGenericTypeDefinition()))
.Select(interfaceType => new
{
Type = x,
Interface = interfaceType,
ConsumedType = interfaceType.GenericTypeArguments[0]
});
return interfaces;
});
foreach (var consumer in consumers)
{
//Register IConsumer<T>
collection.AddTransient(consumer.Interface, consumer.Type);
}
_baseScope = collection.BuildServiceProvider();
_bus = _baseScope.GetService<FakeBus>();
_bus.Subscribe<OrderPlaced>("OrderPlaced", _baseScope);
_bus.Subscribe<OrderPaymentTaken>("OrderPaymentTaken", _baseScope);
}
public void CanDoItAll()
{
var fakeBus = new FakeBus();
fakeBus.Send(new MyMessage("send")).Wait();
fakeBus.SendLocal(new MyMessage("send")).Wait();
fakeBus.Publish(new MyMessage("send")).Wait();
fakeBus.Defer(TimeSpan.FromSeconds(10), new MyMessage("send")).Wait();
fakeBus.Subscribe<MyMessage>().Wait();
fakeBus.Unsubscribe<MyMessage>().Wait();
}
public void CanDoItAll()
{
var fakeBus = new FakeBus();
fakeBus.Send(new MyMessage("send")).Wait();
fakeBus.SendLocal(new MyMessage("send")).Wait();
fakeBus.Publish(new MyMessage("send")).Wait();
fakeBus.Defer(TimeSpan.FromSeconds(10), new MyMessage("send")).Wait();
fakeBus.Subscribe <MyMessage>().Wait();
fakeBus.Unsubscribe <MyMessage>().Wait();
}
public static void Subscribe <T>(this FakeBus bus, string topic, ServiceProvider provider) where T : MessageBase
{
bus.Subscribe <T>(topic, msg =>
{
using (var scope = provider.CreateScope())
{
var pipeline = scope.ServiceProvider.GetService <BusMiddleWare <T> >();
return(pipeline.Execute(scope.ServiceProvider, msg));
}
});
}
public void BookRoom_WithEmptyStore_ShouldBeSuccessful()
{
var store = new InMemoryStore();
Assert.Empty(store.AllBookings());
var bus = new FakeBus();
var handler = new BookingHandler(new BookingService(store, bus));
bus.Subscribe <BookRoom>(handler.Handle);
bus.Send(new BookRoom("Room1", DateTime.Now, DateTime.Now.AddDays(2)));
var bookings = store.AllBookings();
Assert.NotEmpty(bookings);
Assert.Single(bookings);
Assert.Equal("Room1", bookings.Single().RoomName);
}
