Tech riderRev. 29 Sept 2026

pytest

Ch 096.8of 32 Unit Testing Frameworks

1Runs onLinux
2CostsFree plan
3Supported languagesPython
4Built-in mocksYes
5Parameterized casesYes
6Parallel executionYes
7Snapshot testingNo
8Property-based checksNo

8 lines stated Written from the maker's own pages: pytest.org, docs.pytest.org

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Overview

pytest is ranked #9 of 32 in unit testing frameworks on Specifiction. It runs on Linux. There is a free plan.

pytest plans and pricing

All plans

pytest Free Open source Python testing framework docs.pytest.org · 29 Sept 2026

Compared on unit testing frameworks

Free plan: Yespytest.org
Supported languages: Pythonpytest.org
Built-in mocks: Yespytest.org
Parameterized cases: Yespytest.org
Parallel execution: Yespytest.org
Snapshot testing: Nopytest.org
Property-based checks: Nopytest.org

Facts

Purpose: pytest is a framework for writing small, readable tests that can scale to complex functional testing for applications and libraries.docs.pytest.org · 29 Sept 2026
Assertions: pytest provides detailed information about failing assert statements through assertion introspection.docs.pytest.org · 29 Sept 2026
Test discovery: pytest automatically discovers test modules and functions using standard naming conventions.docs.pytest.org · 29 Sept 2026
Fixtures: Fixtures provide resources to tests, including unique temporary directories, and can be shared or parametrized.docs.pytest.org · 29 Sept 2026
Compatibility: pytest can run unittest test suites, including trial, out of the box.docs.pytest.org · 29 Sept 2026
Plugins: pytest has a plugin architecture and the project home reports more than 1300 external plugins.docs.pytest.org · 29 Sept 2026
Supported runtimes: The project home lists Python 3.10+ or PyPy 3; the version support page says pytest 9.0+ requires Python 3.10+.docs.pytest.org · 29 Sept 2026
Install: The getting-started guide installs pytest with the command pip install -U pytest.docs.pytest.org · 29 Sept 2026
Test selection: The command line can select tests by module, directory, keyword, collection path, or marker expression.docs.pytest.org · 29 Sept 2026
Integrations: The documentation describes loading external plugins, including pytest-cov, and pytest can be invoked from Python code.docs.pytest.org · 29 Sept 2026
Support: The project directs users to GitHub issues for bugs and feature requests and offers commercial support and maintenance through Tidelift Subscription.docs.pytest.org · 29 Sept 2026
Security: The project asks users to report suspected security vulnerabilities through a new GitHub security advisory instead of creating an issue.docs.pytest.org · 29 Sept 2026
Enterprise services: The Tidelift subscription description lists security updates, licensing verification and indemnification, maintenance, version guidance, roadmap input, and tooling and cloud integration.docs.pytest.org · 29 Sept 2026
Intended users: pytest is described for testing applications and libraries, and its enterprise support offer is aimed at organizations using open source dependencies to build applications.docs.pytest.org · 29 Sept 2026