Python Testing with pytest: Simple, Rapid, Effective, and Scalable - Softcover

Okken, Brian

Softcover

ISBN 10: 1680502409 ISBN 13: 9781680502404

Publisher: Pragmatic Bookshelf, 2017

Synopsis

Do less work when testing your Python code, but be just as expressive, just as elegant, and just as readable. The pytest testing framework helps you write tests quickly and keep them readable and maintainable - with no boilerplate code. Using a robust yet simple fixture model, it's just as easy to write small tests with pytest as it is to scale up to complex functional testing for applications, packages, and libraries. This book shows you how.

For Python-based projects, pytest is the undeniable choice to test your code if you're looking for a full-featured, API-independent, flexible, and extensible testing framework. With a full-bodied fixture model that is unmatched in any other tool, the pytest framework gives you powerful features such as assert rewriting and plug-in capability - with no boilerplate code.

With simple step-by-step instructions and sample code, this book gets you up to speed quickly on this easy-to-learn and robust tool. Write short, maintainable tests that elegantly express what you're testing. Add powerful testing features and still speed up test times by distributing tests across multiple processors and running tests in parallel. Use the built-in assert statements to reduce false test failures by separating setup and test failures. Test error conditions and corner cases with expected exception testing, and use one test to run many test cases with parameterized testing. Extend pytest with plugins, connect it to continuous integration systems, and use it in tandem with tox, mock, coverage, unittest, and doctest.

Write simple, maintainable tests that elegantly express what you're testing and why.

What You Need:

The examples in this book are written using Python 3.6 and pytest 3.0. However, pytest 3.0 supports Python 2.6, 2.7, and Python 3.3-3.6.

About this title

About the Author

Brian Okken is a lead software engineer with two decades of R&D experience developing test and measurement instruments. He hosts the Test & Code podcast and co-hosts the Python Bytes podcast.

Review

I found Python Testing with pytest to be an eminently usable introductory guidebookto the pytest testing framework. It is already paying dividends for me at mycompany. -  Chris Shaver, VP of Product, Uprising Technology

Systematic software testing, especially in the Python community, is often either completely overlooked or done in an ad hoc way. Many Python programmers are completely unaware of the existence of pytest. Brian Okken takes the trouble to show that software testing with pytest is easy, natural, and even exciting.- Dmitry Zinoviev, Author of Data Science Essentials in Python

This book is the missing chapter absent from every comprehensive Python book.- Frank Ruiz, Principal Site Reliability Engineer, Box, Inc.

Edition details

• Publisher: Pragmatic Bookshelf
• Publication date: 2017
• ISBN 10: 1680502409
• ISBN 13: 9781680502404
• Binding: Paperback
• Language: English
• Edition number: 1
• Number of pages: 216