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Upstream Agile GmbH

Culerity = Full Stack Rails Testing with Cucumber and Celerity

January 28, 2009 by alex

Since the day we started upstream testing was our obsession. When we began all we had was the Rails built-in unit, functional and integration tests. When we learned about RSpec the world became a brighter place. When the RSpec team released their StoryRunner we were thrilled. We started writing stories in English and were able to run them. Whoa. It soon turned out the first version had some serious issues with staying DRY. More versions were released, we rewrote our stories, step by step StoryRunner got better and we got better, too.

Welcome to Culerity.

The problem with Celerity has been that it only works in a JRuby environment, which means you either had to run your application in JRuby as well (which might not even work with certain libraries and plugins) or somehow work your way around it by running your tests in JRuby and your application in whatever Ruby you wanted to use and somehow glue it together. Culerity now fills this gap. After installing it you run your Cucumber features as usual. Celerity now spawns a Java process in the background, sends all the Celerity calls to this process and evaluates the results back in the original Ruby environment — everything works (almost) as if you were running just in your single Ruby process. For an easier start Culerity comes with the same set of Cucumber step definitions that are provided by a default Cucumber/Webrat installation. This means you can reuse your step definitions written for Webrat.

To get started you can either clone the GitHub repository or simply install the gem (langalex-culerity). Then follow the instructions in the README. If you find something is not working for you or could be improved please feel free to fork the source code and show it some love. The codebase is really small right now and fully spec’d.

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