Browse by Tags

• Agile
• BDD
• C#
• PabloTV
• People
• Refactoring
• TDD
• Testing

• Speaking at ADNUG tonight

  I'm speaking at ADNUG tonight about legacy code: The development landscape is strewn with existing legacy systems. As these systems continue to generate revenue and provide value, eventually some force will act upon the development team to change... Posted Jul 14 2008, 07:35 AM by bogardj with | with no comments Filed under: Legacy Code

• PabloTV: Eliminating static dependencies screencast

  Nature abhors a vacuum. It turns out she also abhors static dependencies (I have my sources). Static dependencies are the modern-day globals, often exposed through classes named "Helper". I've certainly been guilty of overusing static dependencies... Posted May 06 2008, 07:24 AM by bogardj with | with 11 comment(s) Filed under: Legacy Code, Refactoring, BDD, TDD, PabloTV

• Profiling a legacy app

  Approaching a legacy application can be a daunting task. You may or may not have access to the original developers (if they even still work for the company), and the domain experts might not be able to commit to teaching you the software full time. If... Posted Apr 16 2008, 07:53 AM by bogardj with | with 6 comment(s) Filed under: Legacy Code

• Advanced mocking: auto-interaction testing

  When dealing with legacy systems or those not designed with specific testability scenarios in mind, you have to test your changes in non-traditional means. In normal mocking (or test double ) scenarios, you have some kind of external dependency that you... Posted Mar 05 2008, 09:44 PM by bogardj with | with 7 comment(s) Filed under: Legacy Code, Testing, TDD

• Hall of shame

  We keep a "Hall of Shame" of WTF-level code snippets to remind us that however bad we might think things get, it could always be worse. It also serves as a reminder to us that we can't be complacent with ignorance, and lack of strong technical... Posted Nov 29 2007, 05:05 PM by bogardj with | with 4 comment(s) Filed under: Legacy Code, C#, People

• Stop the madness

  I've been extending a legacy codebase lately to make it a bit more testable, and a few small, bad decisions have slowed my progress immensely. One decision isn't bad in and of itself, but a small bad decision multiplied a hundred times leads to... Posted Nov 20 2007, 05:01 PM by bogardj with | with 3 comment(s) Filed under: Agile, Legacy Code, Testing

• A downcasting tragedy

  And now, for another tale of legacy code woe, here's a gut-wrenching tragedy of OCP and downcasting , in five acts . Exposition We have a feature we're implementing that when the store's configuration settings allow for a survey link to be... Posted Nov 14 2007, 05:34 PM by bogardj with | with 2 comment(s) Filed under: Legacy Code, Testing

• Dependency Breaking Techniques: Inline Static Class

  Often times I run into a class that has a dependency not on a Singleton , but a static class. When refactoring away from a Singleton, a common approach is to use Inline Singleton . With static classes, a slightly different approach needs to be taken because... Posted Oct 19 2007, 05:50 PM by bogardj with | with 2 comment(s) Filed under: Legacy Code

• The Legacy Code Dilemma and compiler warnings

  This post was originally published here . I hit the Legacy Code Dilemma today while trying to reduce compiler warnings in our solution. For those that don't know it, the Legacy Code Dilemma is: I need to fix some legacy code, but the fix isn't... Posted Oct 02 2007, 04:04 PM by bogardj with | with no comments Filed under: Legacy Code

• Legacy code testing techniques: subclass and override non-virtual members

  This post was originally published here . One of the core techniques in Michael Feathers' Working Effectively With Legacy Code is the "Subclass and Override Method" technique. Basically, in the context of a test, we can subclass a dependency... Posted Aug 31 2007, 03:22 PM by bogardj with | with no comments Filed under: Legacy Code, C#, Testing