Kane Mar

Update: Distributing media can be problematic. If you’ve read the comments below, I’m sure you agree that I’ve had my fair share of difficulties. There have been two issues that I’ve been struggling with recently; (a) the format that I was using (avi’s) only worked on some machines; and (b) the files were not always accessible.

Now, back to the original article …

My previous screencast [1] was a simple introduction to TDD with Ruby. The intention was to demonstrate TDD and not much else. Having done that there are a number of other topics that I feel need to be addressed including exceptions, database interaction and mocks.

In this screencast I’ve focused on TDD with exceptions and error handling.
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Update: This is part 1 of 2. You can find the second part of this series here.

Test Driven Development (TDD) is something that many people talk about but few actually do. A common misconception is that TDD is about writing acceptance tests before developing the code. It’s really more than automated acceptance tests … it’s about using unit tests to drive the development process.

There are several books ([1] and [2]), good written tuturials using java [3] and even a tutorial using Ruby [3]. But I find it’s very difficult to communicate how TDD should feel using the written word. In an attempt to help bridge the gap, I’ve created some screencasts that demonstrate TDD.
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