April 2016
Intermediate to advanced
222 pages
4h 30m
English
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Understanding the unit test
What is a unit of code? A unit is an isolated collection of code. A unit can be tested without loading or running the entire application. Usually, it is just a function. It is easy to determine what a unit is when dealing with code that is well organized into discrete and encapsulated modules. On the other hand, when code is splintered into ill-defined chunks that have cross-dependencies, it is difficult to isolate a logical unit.
What is a test? A test is code whose purpose is to verify other code. A single test case, (often referred to as an example in the RSpec community) consists of a set of inputs, one or more function calls, and an assertion about the expected output. A test case either passes or fails.
What is ...
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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.