Under the hood and working with .Net, TDD, Software Design, and Agile Stuff
In the course of rewriting a new application to do *exactly* what the old system does I've hit an odd bug today. We're running messages through both the old and new systems to compare the results. We had a message go through that had a date of 1/1/1899. The old system let it through but the new system treated the date as a null, causing a validation message that rejected the message. Yes it's a bug but come on. We apparently don't handle junk input the same way. I logged the bug this afternoon with the description "<System XYZ> doesn't party like it's 1899."
Sigh.
About Jeremy D. Miller
Jeremy began his IT career writing "Shadow IT" applications to automate his engineering documentation, then wandered into software development because it looked like more fun. Jeremy previously worked as a systems architect building mission critical supply chain software for a Fortune 100 company and learned agile development practices as a .Net consultant at ThoughtWorks, one of the pioneers of agile development. Jeremy is the author of the open source StructureMap (http://structuremap.sourceforge.net) tool for Dependency Injection with .Net and the forthcoming StoryTeller (http://storyteller.tigris.org) tool for supercharged FIT testing in .Net. Jeremy's thoughts on just about everything software related can be found on his weblog "The Shade Tree Developer" at http://codebetter.com/blogs/jeremy.miller, part of the popular CodeBetter site. Jeremy is a Microsoft MVP for C#.