Testing Your Code With Python's unittest: Structuring & Validating Tests

Published: 30 April 2026
on channel: Real Python

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This is a preview of the video course, "Testing Your Code With Python's unittest". The Python standard library ships with a testing framework named unittest, which you can use to write automated tests for your code. The unittest package has an object-oriented approach where test cases derive from a base class, which has several useful methods.

The framework supports many features that will help you write consistent unit tests for your code. These features include test cases, fixtures, test suites, and test discovery capabilities.

This is a portion of the complete course, which you can find here: https://realpython.com/courses/testin...

The rest of the course covers:
Asserting Yourself
Exercise: Test a String Utility
Skipping Tests
Using Subtests
Exercise: Parameterize Tests With Subtests
Preparing With Fixtures
Exercise: Prepare Test Data With Fixtures
Testing Your Code With Python's unittest (Quiz)

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