Learning Python Testing

Learning Python Testing

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Learning Python Testing

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Overview of this book

<p>Automated testing is the best way to increase efficiency and decrease the defects of software testing. It takes away much of the effort on your part so that you can find bugs early and easily. The Python unit testing framework makes it easy to write efficient automated test cases in Python. Applications involving many paradigms and styles can be very complicated to test, but with the right tools, testing becomes the simplest part of the development process.</p> <p>This book starts with a short introduction to testing, and then introduces the doctest tool, both in terms of practicalities and how it fits into the testing environment. From there, the discussion proceeds to unittest.mock and mock objects, and to unittest. Next, Nose is introduced and discussed. Later on, focus turns from the tools themselves toward best practices and disciplines of testing. Finally, the integration of testing with existing build processes and toolchains is covered. By the end of this book, you will know how to use automated testing quickly and easily and in a way that helps catch bugs early and fix them.</p>

Learning Python Testing

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Python and Testing

Testing for fun and profit

Levels of testing

Acceptance testing

Regression testing

Test-driven development

You'll need Python

Summary

Working with doctest

Where doctest performs best

The doctest language

Expecting exceptions

Expecting blank lines

Controlling doctest behavior with directives

Ignoring part of the result

Ignoring white space

Skipping an example

The other directives

The execution scope of doctest tests

Check your understanding

Exercise – English to doctest

Embedding doctests into docstrings

Putting it into practice – an AVL tree

Summary

Unit Testing with doctest

What is unit testing?

The limitations of unit testing

Check your understanding

Unit testing during the development process

Summary

Decoupling Units with unittest.mock

Mock objects in general

Mock objects according to unittest.mock

Mock objects in action

Summary

Structured Testing with unittest

Summary

Running Your Tests with Nose

Installing Nose

Organizing tests

Simplifying the Nose command line

Customizing Nose's test search

Nose and doctest tests

Nose and unittest tests

Nose and ad hoc tests

Summary

Test-driven Development Walk-through

Writing the specification

Writing initial unit tests

Coding planner.data

Using tests to get the code right

Writing the persistence tests

Finishing up the personal planner

Summary

Integration and System Testing

Introduction to integration testing and system testing

Automating integration tests and system tests

Check yourself – writing integration tests

Summary

Other Tools and Techniques

Code coverage

Version control integration

Automated continuous integration

Summary

Index

Customer Reviews

5 star

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2 star

1 star

Learning Python Testing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: January 2010

Second edition: November 2014

Production reference: 1181114

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78355-321-1

www.packtpub.com

Cover image by Prasanna BC (<[email protected]>)

Learning Python Testing

By :

Learning Python Testing

By:

Overview of this book

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Learning Python Testing

Learning Python Testing