Here at crealytics, we are developing a very interesting Rich Internet Application (RIA) using the Google Web Toolkit (GWT) with a REpresentational State Transfer (REST) Server. We use Behaviour-Driven Development (BDD) for outside-in development driven by business value. BDD for web apps is usually a good fit, as several testing tools support Javascript. As we do not have a specialist for GUI design yet, we have decided to use a Model-View-Presenter (MVP) pattern and start testing at the presenter level (outside) down to the server (in). This combination proves to be harder than expected as most Javascript testing tools work on the UI level by clicking on links, filling forms etc.

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