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• 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

• 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

• 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