hands-on lab

Python: Introduction to Mocking

Intermediate
Up to 2h
98
5/5
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Lab description

The unittest.mock module is Python's built-in mocking and patching module. Used to replace objects with fake implementations during testing. Replacing objects with fake implementations allows code to be tested independently of its dependencies. Allowing tests to be fast, predictable, and more reliable.

Expand your Python skills by learning to use the built-in unittest.mock module.

Learning Objectives

Explore how to replace Python objects during testing.

At the end of this lab you'll be familiar with:

  • Mock
  • MagicMock
  • call

Intended Audience

  • Python Developers

Prerequisites

Updates

April 19th, 2023 - Updated theia to enable autosave

About the author
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Ben Lambert is a software engineer and was previously the lead author for DevOps and Microsoft Azure training content at Cloud Academy. His courses and learning paths covered Cloud Ecosystem technologies such as DC/OS, configuration management tools, and containers. As a software engineer, Ben’s experience includes building highly available web and mobile apps. When he’s not building software, he’s hiking, camping, or creating video games.

Covered topics
Lab steps
Web IDE Review
Introduction to Mock
Callables
Call Assertions
Inspecting Calls
Magic Mock
Side Effects
Attributes
Existing Objects
Unittest
Summary