Last week, we had the author of TDD for a Shopping Website LiveProject. Friday at 11am Ranch time, Steven Solomon will be hosting a live TDD session just for us. See for the agenda and registration link
IntelliJ IDEA doesn't have any built-in code generation tools (aside from some basic stuff like file templates). You can continue using your existing code generation tools with it.
Also, you may want to check out JetBrains MPS: http://www.jetbrains.com/mps/ It's much more than a simple code generation tool, but it can be used efficiently in many cases where code generation tools are commonly used.
Principal Engineer, JetBrains
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