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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Green Is Good: Keeping Our Tests Relevant
You should normally expect that all tests pass all of the time. In practice, that means that when you introduce a bug, only one or two tests fail. Isolating the problem is usually pretty easy in that environment.
Do not continue adding features when there are failing tests! Fix any test as soon as it fails, and keep all tests passing all of the time. “All green all of the time!” will keep you sane when you must change production code.
Keeping Our Tests Fast
Eclipse and other IDEs make it easy to run only the tests defined in a single test class. Some IDEs allow you to run just one unit test at a time. So one way to run your tests all the time and keep them green is to run only the ones you think you ...
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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.
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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.