Tag Archives: tdd

Mutation testing with Mutant

Posted by on January 23, 2013 23 comments

When working on DataMapper and its libraries we put a lot of effort into testing. Our libraries must have 100% code coverage and even that is not enough. What we want to achieve eventually is full mutation coverage. What is …

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Yes, You Should Write Controller Tests!

Posted by on February 2, 2012 46 comments

It really surprises me that there are people arguing that writing controller tests doesn’t make sense. Probably the most common argument is that actions are covered in acceptence tests along with checking if views are properly rendered. Right? Right…well that’s …

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Making ActiveRecord Models Thin

Posted by on August 1, 2011 37 comments

“Skinny Controller, Fat Model” is a well known best practice in Ruby community. Everybody seems to agree with it and follows it. It’s pretty clear what a skinny controller is. The question is what is a fat model and what …

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Custom RSpec-2 Matchers

Posted by on January 14, 2011 6 comments

RSpec is one of my favorite tools. I have literally fallen in love with this fantastic BDD library, especially with its second version. While using RSpec I realized it teaches me how to write tests. Yes, exactly – learning RSpec …

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