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Expert Python Programming – Fourth Edition

You're reading from   Expert Python Programming – Fourth Edition Master Python by learning the best coding practices and advanced programming concepts

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Product type Paperback
Published in May 2021
Publisher Packt
ISBN-13 9781801071109
Length 630 pages
Edition 4th Edition
Languages
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Authors (3):
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Michał Jaworski Michał Jaworski
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Michał Jaworski
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Tarek Ziadé Tarek Ziadé
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Toc

Table of Contents (16) Chapters Close

Preface 1. Current Status of Python 2. Modern Python Development Environments 3. New Things in Python 4. Python in Comparison with Other Languages 5. Interfaces, Patterns, and Modularity FREE CHAPTER 6. Concurrency 7. Event-Driven Programming 8. Elements of Metaprogramming 9. Bridging Python with C and C++ 10. Testing and Quality Automation 11. Packaging and Distributing Python Code 12. Observing Application Behavior and Performance 13. Code Optimization 14. Other Books You May Enjoy
15. Index

Useful testing utilities

When it comes to efficiency in writing tests, it usually boils down to handling all those mundane or inconvenient problems like providing realistic data entries, dealing with time-sensitive processing, or working with remote services. Experienced programmers usually boost their effectiveness with the help of a large collection of small tools for dealing with all these small typical problems. Let's take a look at a few of them.

Faking realistic data values

When writing tests based on input-output data samples, we often need to provide values that have some meaning in our application:

  • Names of people
  • Addresses
  • Telephone numbers
  • Email addresses
  • Identification numbers like tax or social security identifiers

The easiest way around that is to use hardcoded values. We've already done that in the example of our test_send() function in the Mocks and unittest.mock module section:

def test_send()...
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