public async void Can_subscribe_to_complex_types()
{
var handler = new SyncMessageHandler <TestMessage>();
bus.Subscribe <TestMessage>(handler.Handle);
await bus.SendAsync(new TestMessage());
Assert.IsTrue(handler.WasInvoked);
}
public async void Can_subscribe_to_simple_types()
{
var handler = new SyncMessageHandler <string>();
bus.Subscribe <string>(handler.Handle);
await bus.SendAsync("test");
Assert.IsTrue(handler.WasInvoked);
}
public async void Should_invoke_message_handler_factories_per_message()
{
SyncMessageHandler <string> handler = null;
bus.Subscribe(() => handler = new SyncMessageHandler <string>());
await bus.SendAsync("test");
await bus.SendAsync("test 2");
// Should have been recreated on second message
Assert.AreEqual(1, handler.InvocationCount);
}
public async void Can_unsubscribe_an_existing_handler()
{
var handler = new SyncMessageHandler <string>();
var id = bus.Subscribe <String>(handler.Handle);
await bus.SendAsync("test");
Assert.AreEqual(1, handler.InvocationCount);
bus.Unsubscribe(id);
await bus.SendAsync("test 2");
// Should not have been invoked again
Assert.AreEqual(1, handler.InvocationCount);
}
public async void Should_execute_remaining_handlers_on_exception()
{
var h1 = new Action <string>(x => { throw new Exception(); });
var h2 = new SyncMessageHandler <string>();
var h3 = new SyncMessageHandler <string>();
bus.Subscribe <string>(h1);
bus.Subscribe <string>(h2.Handle);
bus.Subscribe <string>(h3.Handle);
await bus.SendAsync("test");
Assert.IsTrue(h2.WasInvoked);
Assert.IsTrue(h3.WasInvoked);
}
public void Cancelling_a_message_should_stop_all_remaining_handlers_from_executing()
{
var h1 = new SyncMessageHandler <string>();
var h2 = new AsyncMessageHandler <string>();
var h3 = new AsyncMessageHandler <string>();
bus.Subscribe <string>(h1.Handle);
bus.Subscribe <string>(h2.HandleAsync);
bus.Subscribe <string>(h3.HandleAsync);
var cts = new CancellationTokenSource(millisecondsDelay: 1000); // h2 takes 2000ms to complete
bus.SendAsync("test", cts.Token).Wait();
Assert.IsTrue(h1.WasInvoked);
Assert.IsTrue(h2.WasInvoked);
Assert.IsFalse(h3.WasInvoked);
}
public async void Should_invoke_all_handlers_that_implement_the_message_type()
{
var h1 = new SyncMessageHandler <IMessage>();
var h2 = new SyncMessageHandler <BaseMessage>();
var h3 = new SyncMessageHandler <TestMessage>();
var h4 = new SyncMessageHandler <TestMessage>();
bus.Subscribe <IMessage>(h1.Handle);
bus.Subscribe <BaseMessage>(h2.Handle);
bus.Subscribe <TestMessage>(h3.Handle);
bus.Subscribe <TestMessage>(h4.Handle);
await bus.SendAsync(new TestMessage());
Assert.IsTrue(h1.WasInvoked);
Assert.IsTrue(h2.WasInvoked);
Assert.IsTrue(h3.WasInvoked);
Assert.IsTrue(h4.WasInvoked);
}