March 2015
Intermediate to advanced
236 pages
5h 26m
English
Content preview from Pragmatic Unit Testing in Java 8 with JUnitBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Code Coverage
Managers love numbers. The concept of code coverage—how much code is unit-tested—is one that tickles the typical manager’s number fetish but ultimately leaves a bad taste when used for anything but educational purposes.
More specifically, code coverage is a measure of the percentage of code that your unit tests execute. You can find tools that do the dirty work of taking the measurements. Emma (which we show briefly here—it’s a free and easily installed Eclipse plugin) and Cobertura are examples of code-coverage tools.
Imagine that you have a Coverage class containing only one method, named soleMethod(), and that soleMethod() contains a single nonconditional statement. If you run a unit test that calls soleMethod(), the statement ...
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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.