April 2016
Intermediate to advanced
494 pages
12h 49m
English
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Chapter 19
Test-Driven Development
“Pick a little, talk a little, pick a little, talk a little, pick, pick, pick, talk a lot, pick a little more.”
from Meredith Wilson’s musical, The Music Man!
If we replace “pick” with “test” and “talk” with “code,” the song captures the essence of Test-Driven Development: write tests and code in small, incremental, alternating steps. A test case is written first, and, in the absence of the corresponding code, the test case fails when executed. Immediately, just enough code is written so that the test case will pass. (Nota bene: “pass” means the observed outputs are consistent with the expected outputs.) As code size increases, refactoring is permitted, but all the original tests must still pass (otherwise the ...
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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.