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The Wrong Notion of Time

No one wakes up in the morning and say "Today I'm gonna screw up. Today I'm gonna piss my boss and all my team mates off writing the worst code I could possibly write". Well, there are always exceptions but normally no one does that....


Speed Reading

It's not often you read a book that changes your perceptions. Speed Reading by Susan Norman/Jan Cisek is one of them. I've always loved reading books but had felt that I read very slow. According to the book reading has many types and you employ...


Testing legacy code with Golden Master

As a warm up for SCNA, the Chicago Software Craftsmanship Community ran a hands-on coding session where developers, working in pairs, should test and refactor some legacy code. For that they used the Gilded Rose kata. You can find links to versions in java, C#...


The Spirit to Improve

This week in our weekly design committee, on of the developer demonstrated how to use the Saxon Injectors to create mock XQuery functions for unit testing. It's been one of the biggest problem with our use of XQuery and the developer solved it in his...


The best approach to software development

Today, talking about doing a big design up-front (BDUF) sounds a bit ridiculous, right? Who would do that? That's not craftsmanship, is it? However, in the past, that would be considered the norm. Writing requirement documents, drawing architectural and very low level detail diagrams was...


Encouraging Collaboration via Design Committee

Agile process promotes the view that system design emerges and evolves throughout it's life. It is a result of continuos discussions and decisions by the teams. On large projects with multiple teams, the ideal of involving everyone in design discussion becomes very cumbersome. Even if...


Encouraging Collaboration via Review Branches and Pull Requests

I have always advocated the use of a small well balanced team for projects rather than many less experienced ones. However this is not always possible. Some time projects require a very fast ramp up with a much larger set of teams where achieving a...


Test-driving Builders with Mockito and Hamcrest

A lot of people asked me in the past if I test getters and setters (properties, attributes, etc). They also asked me if I test my builders. The answer, in my case is it depends. When working with legacy code, I wouldn’t bother to test...


Testing multiple properties with single assertion

Every time I was trying to test an object's properties I was neither satisfied writing very verbose tests nor in using some of the out of the box hamcrest matchers. Although using the matchers was a big help, I never managed to make them read...


Extract, Inject, Kill: Breaking hierarchies (part 3)

In part one I explain the main idea behind this approach and in part two I start this example. Please read parts one and two before reading this post Although the main ideas of Extract, Inject, Kill is already expressed, it's good to finish the...


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