private static IMediator BuildMediator(WrappingWriter writer)
{
var kernel = new StandardKernel();
kernel.Bind <TextWriter>().ToConstant(writer);
kernel.Components.Add <IBindingResolver, ContravariantBindingResolver>();
//kernel.Bind(scan => scan.FromAssemblyContaining<IMediator>().SelectAllClasses().BindDefaultInterface());
kernel.Bind <IMediator>().To <Mediator>();
kernel.Bind(scan => scan.FromAssemblyContaining <Ping>().SelectAllClasses().InheritedFrom(typeof(ISignalHandler <>)).BindAllInterfaces());
kernel.Bind(typeof(ISignalHandler <>)).To(typeof(ConstrainedPingedHandler <>)).WhenSignalMatchesType <Pinged>();
kernel.Bind(typeof(ISignalHandler <>)).To(typeof(MessageHandler <>)).WhenSignalMatchesType <Message>();
kernel.Bind <ServiceFactory>().ToMethod(ctx => t => ctx.Kernel.TryGet(t));
var mediator = kernel.Get <IMediator>();
return(mediator);
}
public static async Task Run(IMediator mediator, WrappingWriter writer, string projectName)
{
await writer.WriteLineAsync("===============");
await writer.WriteLineAsync(projectName);
await writer.WriteLineAsync("===============");
await writer.WriteLineAsync();
await writer.WriteLineAsync("Publishing Message...");
ISignal signal = new Message()
{
Text = "I'm a signal message body"
};
await mediator.Publish(signal);
await writer.WriteLineAsync();
await writer.WriteLineAsync("Publishing Pinged...");
await mediator.Publish(new Pinged());
await writer.WriteLineAsync();
await writer.WriteLineAsync("Publishing Ponged...");
var failedPong = false;
try
{
await mediator.Publish(new Ponged());
}
catch (Exception e)
{
failedPong = true;
await writer.WriteLineAsync(e.ToString());
}
await writer.WriteLineAsync();
await writer.WriteLineAsync("---------------");
var contents = writer.Contents;
var order = new[] {
contents.IndexOf("- Starting Up", StringComparison.OrdinalIgnoreCase),
contents.IndexOf("-- Handling Request", StringComparison.OrdinalIgnoreCase),
contents.IndexOf("--- Handled Ping", StringComparison.OrdinalIgnoreCase),
contents.IndexOf("-- Finished Request", StringComparison.OrdinalIgnoreCase),
contents.IndexOf("- All Done", StringComparison.OrdinalIgnoreCase),
contents.IndexOf("- All Done with Ping", StringComparison.OrdinalIgnoreCase),
};
var results = new RunResults
{
RequestHandlers = contents.Contains("--- Handled Ping:"),
PipelineBehaviors = contents.Contains("-- Handling Request"),
RequestPreProcessors = contents.Contains("- Starting Up"),
RequestPostProcessors = contents.Contains("- All Done"),
OrderedPipelineBehaviors = order.SequenceEqual(order.OrderBy(i => i)),
NotificationHandler = contents.Contains("Got pinged async"),
MultipleNotificationHandlers = contents.Contains("Got pinged async") && contents.Contains("Got pinged also async"),
ConstrainedGenericNotificationHandler = contents.Contains("Got pinged constrained async") && !failedPong,
CovariantNotificationHandler = contents.Contains("Got notified")
};
await writer.WriteLineAsync($"Request Handler....................................................{(results.RequestHandlers ? "Y" : "N")}");
await writer.WriteLineAsync($"Void Request Handler...............................................{(results.VoidRequestsHandlers ? "Y" : "N")}");
await writer.WriteLineAsync($"Pipeline Behavior..................................................{(results.PipelineBehaviors ? "Y" : "N")}");
await writer.WriteLineAsync($"Pre-Processor......................................................{(results.RequestPreProcessors ? "Y" : "N")}");
await writer.WriteLineAsync($"Post-Processor.....................................................{(results.RequestPostProcessors ? "Y" : "N")}");
await writer.WriteLineAsync($"Constrained Post-Processor.........................................{(results.ConstrainedGenericBehaviors ? "Y" : "N")}");
await writer.WriteLineAsync($"Ordered Behaviors..................................................{(results.OrderedPipelineBehaviors ? "Y" : "N")}");
await writer.WriteLineAsync($"Notification Handler...............................................{(results.NotificationHandler ? "Y" : "N")}");
await writer.WriteLineAsync($"Notification Handlers..............................................{(results.MultipleNotificationHandlers ? "Y" : "N")}");
await writer.WriteLineAsync($"Constrained Notification Handler...................................{(results.ConstrainedGenericNotificationHandler ? "Y" : "N")}");
await writer.WriteLineAsync($"Covariant Notification Handler.....................................{(results.CovariantNotificationHandler ? "Y" : "N")}");
await writer.WriteLineAsync($"Handler for inherited request with same exception used.............{(results.HandlerForSameException ? "Y" : "N")}");
await writer.WriteLineAsync($"Handler for inherited request with base exception used.............{(results.HandlerForBaseException ? "Y" : "N")}");
await writer.WriteLineAsync($"Handler for request with less specific exception used by priority..{(results.HandlerForLessSpecificException ? "Y" : "N")}");
await writer.WriteLineAsync($"Preferred handler for inherited request with base exception used...{(results.PreferredHandlerForBaseException ? "Y" : "N")}");
await writer.WriteLineAsync($"Overridden handler for inherited request with same exception used..{(results.OverriddenHandlerForBaseException ? "Y" : "N")}");
await writer.WriteLineAsync();
}
private static bool IsExceptionHandledBy <TException, THandler>(WrappingWriter writer)
where TException : Exception
{
var messages = writer.Contents.Split(new[] { "\r\n" }, StringSplitOptions.None).ToList();
return(messages[^ 2].Contains(typeof(THandler).FullName ?? throw new InvalidOperationException()) &&
