/// <summary>
/// Register all <see cref="Intermedium"/> services.
/// </summary>
/// <param name="services">The <see cref="IServiceCollection" /> to add the service to.</param>
/// <param name="setupAction">
/// An <see cref="Action{T}"/> to configure the provided <see cref="IntermediumOptions"/>.
/// </param>
/// <returns>A <paramref name="services"/> parameter after the operation has completed.</returns>
public static IServiceCollection AddIntermedium(
this IServiceCollection services,
Action <IntermediumOptions> setupAction)
{
if (services is null)
{
throw new ArgumentNullException(nameof(services));
}
var options = new IntermediumOptions();
setupAction?.Invoke(options);
if (!options.ScanTargets.Any())
{
throw new InvalidOperationException("Please, specify at least one assembly to scan.");
}
if (services.Any(x => x.ServiceType == typeof(IMediator)))
{
throw new InvalidOperationException(
nameof(IMediator) + " is already registered. "
+ "Define your mediator implementation using setup action of this method."
);
}
ServiceRegistrar.FindAndRegister(services, options);
return(services);
}
public void FindAndRegister_ExecutingAssembly_RegistersAllComponents()
{
var services = new ServiceCollection();
var options = new IntermediumOptions();
options.Scan(typeof(ServiceRegistrarTests));
ServiceRegistrar.FindAndRegister(services, options);
var provider = services.BuildServiceProvider();
provider.GetService <Core.ServiceProvider>().Should().NotBeNull();
provider.GetService <IMediator>().Should().BeOfType <Mediator>();
new[]
{
typeof(ExceptionHandlingMiddleware <,>),
typeof(PostProcessingMiddleware <,>),
typeof(PreProcessingMiddleware <,>)
}
.All(middleware => services.Any(x => x.ImplementationType == middleware))
.Should()
.BeTrue();
provider.GetServices <IQueryHandler <QueryTest, int> >().Should().HaveCount(1);
provider.GetServices <IQueryHandler <CommandTest, VoidUnit> >().Should().HaveCount(1);
provider.GetServices <INotificationHandler <NotificationTest> >().Should().HaveCount(2);
provider.GetServices <IQueryExceptionHandler <CommandTest, VoidUnit> >().Should().HaveCount(3);
}