Unit testing with JavaScript and NodeJS

In my latest project I needed a way to execute JavaScript from the command line. I knew a little about the Rhino project which achieves this and of course the Google V8 Project.

I experimented a little with V8 and the default shell sample application that it ships with. I found it easy to introduce native functionality using C++ and this seemed to perform well. I then discovered the nodejs project. nodejs is built on top of V8 and includes lots of general purpose functionality which is great for running JavaScript from the command line and fantastic for developing server applications.

Instead of reinventing the wheel with my custom V8 shell I decided to use nodejs. nodejs has an excellent module system which makes it easy to add new functionality.

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