March 2001
Intermediate to advanced
416 pages
10h 27m
English
Content preview from A Practical Guide to Testing Object-Oriented SoftwareBecome 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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Testing Abstract Classes
We usually expect the root class of an inheritance hierarchy—and even some of its direct descendents—to be abstract. In this section, we discuss possible ways of testing abstract classes, such as Sprite and MovableSprite. Execution-based testing of classes requires that an instance of the class be constructed. Most object-oriented programming languages, including C++ and Java, support syntax for identifying abstract classes. Language semantics generally preclude instances of abstract classes from being created. This presents a problem for testing because we cannot create the instances we need. We have identified some different approaches to testing abstract classes. Each has strengths and drawbacks. We present these approaches ...
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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.