public void AddMessageHandlers_should_add_all_available_message_handlers_from_assemblies()
{
var services = NSubstitute.Substitute.For <IServiceCollection>();
var sagaTypeResolver = NSubstitute.Substitute.For <ISagaTypeResolver>();
var typeResolver = NSubstitute.Substitute.For <ITypeResolver>();
var sysInfo = SystemInfo.New();
var sut = new BusConfigurator(services, sagaTypeResolver, typeResolver, sysInfo);
var result = sut.AddMessageHandlers <DummyMessage>(new[] { typeof(BusConfiguratorTests).Assembly });
result.Should().NotBeNull();
typeResolver.Received(1)
.Register(typeof(DummyMessage));
services.Received(1).Add(Arg.Any <ServiceDescriptor>());
services.Received(1)
.Add(Arg.Is <ServiceDescriptor>(sd => sd.Lifetime == ServiceLifetime.Transient &&
sd.ServiceType == typeof(IHandleMessage <DummyMessage>) &&
sd.ImplementationType.IsAssignableTo(typeof(DummyMessageHandler))));
}