• 20 Oct 2017 » There Is Cake at Pluralsight

    I'm excited to announce that my new Pluralsight course is out! And yes, in case you're wondering, it really does contain Cake.

  • 24 Apr 2014 » BDD all the way down

    When I started doing TDD a few years ago, I often felt an inexplicable gap between the functionality described in the requirements and the tests I was writing to drive my implementation. BDD turned out to be the answer.

  • 16 Apr 2013 » General-purpose customizations with AutoFixture

    If you’ve been using AutoFixture in your tests for more than a while, chances are you’ve already come across the concept of customizations.In this post I’m going to talk about how to write general-purpose customizations.

  • 26 Feb 2013 » Adventures in overclocking a Raspberry Pi

    This article sums up my experience when overclocking a Raspberry Pi computer. It doesn’t provide a step-by-step guide on how to do the actual overclocking. Instead, it gathers the pieces of information that I found most interesting during my research, while diving deeper on some exquisitely geeky details on the way.

  • 19 Jan 2012 » Better Diffs with PowerShell

    I love working with the command line. In fact, I love it so much that I even use it as my primary way of interacting with the source control repositories of all the projects I’m involved in. It’s a matter of personal taste, admittedly, but there’s also a practical reason for that.

  • 15 Dec 2011 » Keep your unit tests DRY with AutoFixture Customizations

    When I first incorporated AutoFixture as part of my daily unit testing workflow, I noticed how a consistent usage pattern had started to emerge. Multiple tests shared the same context, which had to be initialized in exactly the same way over and over again. Luckily, AutoFixture customizations offer an elegant way out of this unnecessary duplication.

  • 06 Sep 2011 » Behavior changes in AutoFixture 2.2 – Anonymous numbers

    Now that AutoFixture 2.2 is approaching on the horizon, it’s a good time to start talking about some of the changes that were made to the underlying behavior of some existing APIs. I’ll start off this series of posts by focusing on the new generation strategy for anonymous numbers.

  • 01 Aug 2011 » Anonymous delegates in AutoFixture

    I’m excited to announce that AutoFixture now officially supports delegates in the main trunk up on CodePlex.

  • 04 Jan 2010 » Fixing a bug in ASP.NET Ajax and the pain of leaky abstractions

    There was a time when all my energies and effort went into building web applications. In the beginning the platform I was on was Microsoft ASP 2.0, but since 2002 it became all about ASP.NET Web Forms.

  • 10 Nov 2009 » Speed up your queries in SQL Server by being declarative

    It’s interesting how a lot of the work I’ve been doing lately has in some way involved a kind of performance tuning. Previously I’ve talked about how to increase the performance of .NET applications by using delegates instead of reflection in code that runs frequently.

  • 04 Sep 2009 » Improving performance with generic delegates in .NET

    Lately I have been involved in the performance profiling work of a Windows client application, which customers had lamented to be way too slow for their taste.

  • 02 Jul 2009 » Isolating WCF through Dependency Injection – Part II

    In my previous post, I talked about how to design a class that uses a WCF client proxy in such a way to make it testable in unit tests, without having to spin up a real service to answer the requests. The technique I illustrated uses a particular Inversion of Control (IoC) principle called Dependency Injection (DI), in which objects that a given class depends on get pushed into it from the outside rather than being created internally.

  • 25 Jun 2009 » Isolating WCF through Dependency Injection – Part I

    I have to admit that in the beginning I didn’t think Inversion of Control (IoC) Containers were that big of a deal. The idea of relying on an external agent to manage all the associations between objects in an application, sounded like it would bring more problems than advantages. Overkill. But I was wrong.

  • 04 Mar 2009 » Enforcing coding standards with Microsoft StyleCop

    I can’t stress enough the importance of having a code convention in place before starting in any kind of software project.

  • 25 Feb 2009 » GDI memory leak in Windows Forms

    A while ago I run into a rather interesting and insidious bug, which I thought I would share. The bug manifested itself in a Windows Forms application, occasionally causing it to crash with an "out of memory" error. Little did we know that the hunt would lead us down the dark corners of the Win32 graphics API.

  • 06 Feb 2009 » Managing shared cookies in WCF

    The ASMX Web Services framework, as obsolete as it may feel, still supports HTTP cookies in the exact same way as you would normally expect. WCF, on the other hand, broke that tradition in the name of a higher level API. This article explains how the two programming models handle cookies and suggests a solution to the problem of sharing a common cookie across multiple Web Service requests.

  • 27 Nov 2008 » Migrating ASP.NET Web Services to WCF

    I am currently in the middle of a project where we are migrating a (large) amount of web services built on top of ASP.NET in .NET 2.0 (commonly referred to as ASMX Web Services) over to the Windows Communication Foundation (WCF) platform available in .NET 3.0. The primary reason we want to do that, is because we would like to take advantage of the binary message serialization support available in WCF to speed up communication  between the services and their clients. This same technique was possible in earlier versions of the .NET Framework thanks to a technology called Remoting, which is now superceded by WCF. In both cases it requires that both the client and server run on .NET in order to work. But I digress.

  • 21 Nov 2008 » REST web services

    If you have followed the latest advancements in the technologies and standards around web services, you must have come across the term “REST” at least more than once. In rough terms REST is a way of building web services by relying exclusively on the infrastructure of the World Wide Web to define operations and exchange messages. This is an alternative to “traditional” web services, which instead use a set of standardized XML dialects, WSDL and SOAP to achieve the same goals. The reason I’m writing about REST is that if you, like me, have prematurely judged it as some kind of toy technology, you are in for a real eye-opener!

  • 12 Nov 2008 » SQL Injections

    When discussing web development, the subject of security inevitably comes up. Last week while I was teaching a class in ASP.NET, we had a sample login page that,   although being quite trivial in nature, was exposing a serious vulnerability to SQL injections attacks.

  • 22 Oct 2008 » Microsoft Oslo and the evolution of programming

    The other day I was reading about one of the most talked about future Microsoft technologies code-named “Oslo”. The details of what “Oslo” is are still pretty vague, at  least until PDC 2008. In short it’s a set of technologies aimed at creating Domain Specific Languages (DSL) that can then be used to build executable programs. Yes, I know that still sounds vague, but that’s really all Microsoft has reveled about the whole project so far.

  • 07 Oct 2008 » McConnell’s Primary Technical Imperative

    I’ve recently picked up reading (again) my all-time favorite book about software development. Code Complete by Steve McConnell. The book was first published in 1993 and has been a timeless guide for anyone in this industry about the science and art of software development. A craftsman’s handbook, if you will.