September 2016
Intermediate to advanced
336 pages
9h 33m
English
Content preview from Developer Testing: Building Quality into Software
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Chapter 16. Duplication
Duplication is the root of many evils in software development and is particularly harmful for testability, which was broken down into observability, controllability, and smallness in Chapter 4, “Testability from a Developer’s Perspective,” where I claimed that duplicated code presented an additional challenge to testing. The argument was that there was no way to infer that if certain functionality was tested from one entry point in the application, it would behave the same if accessed from another.
Why Duplication Is Bad
From a test-aware developer’s point of view, duplication is bad in several ways:
Duplication breeds ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.