awesome-python-testing

These software engineering rules and testing best practices might help save you time and headaches.

Mocking might seem confusing in the beginning but once you understand the basics it can be very helpful.

Learn some handy async examples and patterns for testing in Pytest.

Focused on pytest.

A curated list of awesome Python frameworks, libraries, software and resources.

is a helper for mock/fake web requests in python aiohttp package.

record & replay mock server.

Zero-dependency in-memory virtual filesystem with hard quotas. Provides an explicit, isolated instance instead of patching global state.

Powerful test doubles framework for Python.

is a testing library for Python that makes it easy to create mocks, stubs and fakes.

Travel through time by mocking the datetime module.

work by comparing the test results to a golden master.

a pytest plugin that boosts efficiency when writing tests by generating code with the expected values and simplifies snapshot tests with pytest.

is a way to test your APIs without writing actual test cases.

is a zero-dependency pytest snapshot plugin. It enables developers to write tests which assert immutability of computed results.

Accessibility-focused DOM testing library for tdom, built with modern Python 3.14+.

is a front-end UI automation test framework based on BDD mode, providing a series of out-of-the-box tools and complete documentation.

is a test framework and a complete tool for browser automation. Tests can be written with code in Python, codeless using the web IDE, or both.

is great for web automation. Helium makes it easier to use.

Python-based UI automation framework for HarmonyOS NEXT. API compatible with uiautomator2, supports XPath, image recognition, performance monitoring and notification management.

is an open source visual regression testing tool. Run visual regression tests on your Storybook and Ladle stories and on your application pages.

A framework-agnostic library for testing ASGI web applications.

(Python standard library) The doctest module searches for pieces of text that look like interactive Python sessions, and then executes those sessions to verify that they work exactly as shown.

Fast python test runner, compatible with a subset of pytest.

Maelstrom is a fast Rust and Python test runner that runs every test in its own container. Tests are either run locally or distributed to a clustered job runner.

The successor to

A lightweight framework for performance testing of Python functions; allows for testing of performance in terms of execution time and memory usage.

is a coverage-guided Python fuzzing engine. It supports fuzzing of Python code, but also native extensions written for CPython.

Adaptive fuzzing of Hypothesis tests.

is an advanced Quickcheck style property based testing library.

An extensions for Hypothesis that provides fully automatic testing for type hinted functions.

Add the power of solver-based symbolic execution to your Hypothesis tests with CrossHair.

Instead of writing manually the Hypothesis search strategies for a function,

designed to minimize the setup/arrange phase of your unit tests by removing the need to manually write code to create anonymous variables as part of a test cases setup/arrange phase.

Fake database generator.

A Python package that generates fake data.

Genuine Fake means an imitation of a (usually) valuable object that is so good that it is, to all intents and purposes, identical.

A Python library that helps you generate fake data.

Generate random datetime / time.

A curated list of awesome flake8 extensions.

Collection of awesome Python types, stubs, plugins, and tools to work with them.

is a tool designed to find common security issues in Python code.

An extremely fast Python library to calculate the cognitive complexity of Python files, written in Rust.

is a python tool that glues together pep8, pyflakes, mccabe, and third-party plugins to check the style and quality of python code.

A tool for programmatically detecting common mistakes in Python code, such as references to undefined variables and some categories of type mismatches.