Python Unit Test Automation

Learn how to automate unit tests of Python 3 with automation libraries, such as doctest, unittest, nose, nose2, pytest, and selenium. This book explores important concepts in software test automation and demonstrates how to automate, organize, and execute unit tests with Python. It also introduces readers to the concepts of web browser automation and logging.

This new edition starts with an introduction to Python 3. Next, it covers doctest and pydoc. This is followed by a discussion on unittest, a framework that comes packaged with Python 3 itself. There is a dedicated section on creating test suites, followed by an explanation of how nose2 provides automatic test module discovery. Moving forward, you will learn about pytest, the most popular third-party library and testrunner for Python. You will see how to write and execute tests with pytest. You’ll also learn to discover tests automatically with pytest.

This edition features two brand new chapters, the first of which focuses on the basics of web browser automation with Selenium. You’ll learn how to use Selenium with unittest to write test cases for browser automation and use the Selenium IDE with web browsers such as Chrome and Firefox. You’ll then explore logging frameworks such as Python’s built-in logger and the third-party framework loguru.

The book concludes with an exploration of test-driven development with pytest, during which you will execute a small project using TDD methodology.

WHAT YOU WILL LEARN

* Start testing with doctest and unittest
* Understand the idea of unit testing
* Get started with nose 2 and pytest
* Learn how to use logger and loguru
* Work with Selenium and test driven development

WHO THIS BOOK IS FOR

Python developers, software testers, open source enthusiasts, and contributors to the Python community. Ashwin Pajankar holds a Master of Technology from IIIT Hyderabad, and has over 25 years of programming experience. He started his journey in programming and electronics with BASIC programming language and is now proficient in Assembly programming, C, C++, Java, Shell Scripting, and Python. Other technical experience includes single board computers such as Raspberry Pi and Banana Pro, and Arduino. He is currently a freelance online instructor teaching programming bootcamps to more than 60,000 students from tech companies and colleges. His Youtube channel has an audience of 10000 subscribers and he has published more than 15 books on programming and electronics with many international publications.

Chapter 1: Introduction to Python

Chapter Goal: Brief intro into Python 3

No of pages

Sub -Topics

1. History of Python

2. Features

3. Python 3

4. Installation

5. Running a Python program

6. IDEs

Chapter 2: GettingSstarted with Unit Testing

Chapter Goal: Brief acquaintance with the subject of the book and some hands on

No of pages:

Sub - Topics:

1. Software Testing concepts

2. Docstrings

3. pydoc

4. Doctest

Chapter 3: Unittest

Chapter Goal: Getting to understand the Unittest framework

No of pages:

Sub - Topics:

1. xUnit

2. Using unittest

3. Test discovery

4. Coding conventions for unittest

5. Assertions in unittest

6. Other useful methods

7. Failing a test

8. Advanced functionality

a) More command line options

b) Test suite

c) AssertRaisesWarn

Chapter 4: Nose and Nose 2

Chapter Goal: Concepts of Nose and Nose 2

No of pages:Sub - Topics:

1. Introduction to nose

2. Fixtures

3. Testing Tools

4. Reports

5. Running unittests and doctests

6. Advantages and disadvantages

7. Introduction to nose 2

8. Advanced topics in nose 2

a) Running tests and conventions

b) Parameterized tests

c) Generating report

Chapter 5: pytest

Chapter Goal: work with pytest

1. Introduction to pytest

2. Fixtures

3. Command line options

Chapter 6: Testify

Chapter Goal: work with testify

1. Fixtures

2. Advanced features

Chapter 7: Logging in Python

Chapter Goal: work with logging

1. Logger

2. Loguru

Chapter 8: Additional Topics

Chapter Goal: work with testify

1. Naming conventions2. TDD with Python

3. Selenium with pytest and logger