Joseph Wilk

I was speaking in Edinburgh at Scotland on Rails 2009 about Cucumber and Rspec.

You can watch the recorded full talk.

I’ve also posted the slides from the presentation and uploaded the screencasts used in the presentation in both high and low resolutions. They are accessible from links within the presentation.

Here are some of the useful links from the presentation:

• Cuke’s official website – http://cukes.info
• Cucumer’s github wiki – http://wiki.github.com/aslakhellesoy/cucumber
• Rspec’s website – http://rspec.info
• The Rspec book – Pragmatic book store – http://www.pragprog.com/titles/achbd/the-rspec-book
• In-memory browser testing – Webrat – http://wiki.github.com/brynary/webrat
• Browser based testing – Watir – http://wtr.rubyforge.org/
• Browser based testing – Selenium – http://seleniumhq.org/
• Headless Browser testing – Celerity – http://celerity.rubyforge.org/
• Using Celerity from within Ruby – Culerity – http://upstream-berlin.com/2009/01/28/culerity-full-stack-rails-testing-with-cucumber-and-celerity/
• Website for checking regular expressions – Rubular – http://www.rubular.com/

I would like to thank the organisers, everyone who came to listen and speak at the conference. It was a pleasure to be a part of such an enthusiastic group of people in such a beautiful venue.

I’m really excited to be giving a talk at this years Scotland on Rails conference in Edinburgh.

I’ll be talking about working outside-in with Cucumber and RSpec. Having used Cucumber and as a member of the Cucumber core developer team I hope to share lots of experiences and lessons about getting the most out of the tool.

It’s looking like a great line up with with some really interesting presentations across a broad number of topics. The keynotes speakers are Michael Feathers and Marcel Molina, Jnr.

If you’re going to be in Edinburgh for the conference or have any burning questions about Cucumber, let me know.

I’ve been developing multiple systems using Rspec stories for a little while now. There are a lot of great resources to get you started with a taste of what you can do with stories. Some of the resources I found useful where:

• http://peepcode.com/products/rspec-user-stories
• http://blog.davidchelimsky.net/2008/6/16/slides-from-railsconf
• http://www.benmabey.com/2008/02/04/rspec-plain-text-stories-webrat-chunky-bacon/
• http://dannorth.net/whats-in-a-story
• http://evang.eli.st/blog/2007/10/8/story-runner-top-to-bottom-screencast

However once I had understood the basic idea I struggled to find practical examples and general guidance on writing real stories. So I’ve collected some of the lessons I’ve learnt along the way with story examples taken from real systems and how I’ve improved them as I learnt. Most examples are from web based applications.

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Rspec-rails is a rails plugin which brings the Rspec Ruby Behaviour Driven Development framework to rails along with some rails specific helpers. One of these hugely useful helper functions is:

mock_model(model_class, options_and_stubs = {})

This creates a mock object with the common methods stubbed out. It also allows you to specify other methods you want to stub.
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When using Rspec stories you have plain text stories which we call the ’story’ file and the ’story steps’ file that maps the plain text story to programmatic code. Generally you end up with your story files not being DRY. This is not a worry, your stories are the domain specific languages detailing your acceptance/integration tests. Its like saying that your Rails Models are not DRY because they repeat lots of 'has_one'!
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