September 2013
Intermediate to advanced
350 pages
9h 38m
English
Content preview from Practical Programming, 2nd EditionBecome 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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Chapter 15Testing and Debugging
How can you tell whether the programs you write work correctly? Following the function design recipe from Designing New Functions: A Recipe, you include an example call or two in the docstring. The last step of the recipe is calling your function to make sure that it returns what you expect. But are one or two calls enough? If not, how many do you need? How do you pick the arguments for those function calls? In this chapter, you will learn how to choose good test cases and how to test your code using Python’s unittest module.
Finally, what happens if your tests fail, revealing a bug? (See What’s a Bug?.) How can you tell where the problem is in your code? In this chapter, you’ll also learn how to find and ...
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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.