Amiralles's Blog

CQRS stands for C ommand Query Responsibility Segregation and the basic rules are: Commands - Perform (side effects) actions on the system and don't return values. Queries  - Return values but can't touch the system's state. Idealy, you don't mix them. Hence you can say, commands are dangerous, and queries are safe. Now, ruby doesn't have a specific type to say: this method (command) returns nothing, like void in C and other languages. So, the question is: How do you state that a particular method returns nothing? Based on comments from the ruby mailing list, people are using these approaches; 1. Return self. 2. Return nil. 3. Implicit return (which in general, ends up being nil). If I'd have to pick one, I'd go with the last one, but I also like to throw another option into the mix.... Why don't create a class for this particular use case? Let's say, Nothing! module Nothing class Nothing end def nothing @nothing ||= Nothi...

For a long time the .NET's unit testing landscape hasn't changed that much... sure, new frameworks arrived, but they were almost the same thing with a subtle syntax twist, instead using [Test] they use [Fact] or different ways to specify setups and so on, but the essence was the same... Attributes based libraries with GUI oriented test runners. There is nothing wrong with that perse, but I guess everybody would agree that they are hard to use if you are working on plaint text editor like vi or emacs. In this context, contest was born as an alternative to IDE oriented tools for those who prefer consoles and text editors. The way the art of programming was meant to be ;) For an elevator pitch, please refer to  this codeproject article .  For docs and getting started guides go  the contest's repo on github . And of course, if you have any question, fell free to contact me.