Book Image

Python Unlocked

By : Arun Tigeraniya
Book Image

Python Unlocked

By: Arun Tigeraniya

Overview of this book

Python is a versatile programming language that can be used for a wide range of technical tasks—computation, statistics, data analysis, game development, and more. Though Python is easy to learn, it’s range of features means there are many aspects of it that even experienced Python developers don’t know about. Even if you’re confident with the basics, its logic and syntax, by digging deeper you can work much more effectively with Python – and get more from the language. Python Unlocked walks you through the most effective techniques and best practices for high performance Python programming - showing you how to make the most of the Python language. You’ll get to know objects and functions inside and out, and will learn how to use them to your advantage in your programming projects. You will also find out how to work with a range of design patterns including abstract factory, singleton, strategy pattern, all of which will help make programming with Python much more efficient. Finally, as the process of writing a program is never complete without testing it, you will learn to test threaded applications and run parallel tests. If you want the edge when it comes to Python, use this book to unlock the secrets of smarter Python programming.
Table of Contents (15 chapters)
Python Unlocked
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating custom test runners


Key 3: Getting information from test system.

The flow of unit test is like this: unittest TestProgram in unittest.main is the primary object that runs everything. Test cases are collected by test discovery or by loading modules that were passed via command line. If no test runner is specified to the main function, by default, TextTestRunner is used. Test suite is passed to the runner's run function to give back a TestResult object.

The custom test runners are a great way to get information in a specific output format, from the test system, manage run sequence, store results in a database, or create new features for project needs.

Let's now take a look at an example to create an XML output of test cases, you may need something like this to integrate with continuous integration systems, which are only able to work with some XML format. As in the following code snippet XMLTestResult is the class that gives the test result in the XML format. The TsRunner class test...