Side by side

Catch2 vs unittest

Both stand on unit testing. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

unittest provides test organization, command-line execution, discovery, and mock support as part of Python’s standard library. Its discovery requirement for importable files is worth considering when structuring a project.

Visit unittest

The facts

	Catch2	unittest
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Linux, Mac, Windows	Linux, Mac, Windows
Lowest paid plan	Not published	Free or on request
Plans published	None	1
Maker	Not published	Not published
Website	github.com	docs.python.org
On unit testing	#25 of 32	#21 of 32

Catch2: what it does well

unittest: what it does well

Includes fixtures, TestCase, TestSuite, and test runners.
Supports configurable test discovery.
Allows skipped tests and expected failures.
Subtests report parameters when an iteration fails.
Free to use and distribute commercially.

What to know first

Discovery requires importable test files.
The framework supports Python only.

Alternatives to Catch2 Alternatives to unittest The whole list