Hypothesis

Hypothesis is a powerful library for property-based testing in Python. Instead of writing specific test cases, users define properties and Hypothesis generates random inputs to uncover edge cases and bugs. It integrates with unittest and pytest, shrinking failing examples to minimal reproducible cases. Widely adopted in production systems, Hypothesis boosts code reliability by exploring input spaces far beyond manually crafted tests.

Features

Property-based test generation
Customizable strategies for complex data
Input shrinking to simplify failing cases
Integration with pytest and unittest
State Machine testing for stateful systems
Replays random seeds for reproducibility

Project Samples

Project Activity

See All Activity >

License

MIT License

Follow Hypothesis

Hypothesis Web Site

Other Useful Business Software

Try Google Cloud Risk-Free With $300 in Credit

No hidden charges. No surprise bills. Cancel anytime.

Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.

Start Free

Rate This Project

User Reviews

Be the first to post a review of Hypothesis!

Additional Project Details

Programming Language

Python

Related Categories

Python Libraries

Registered

2025-07-03

Similar Business Software

Voca

The Voca library offers helpful functions to make string manipulations comfortable: change case, trim, pad, slugify, latinise, sprintf'y, truncate, escape and much more. The modular design allows to load the entire library, or individual functions to minimize the application builds. The library...

See Software
DHTMLX

DHTMLX is a JavaScript UI library that provides a set of highly customizable and flexible components for building modern and responsive web applications. The library includes more than 30 UI components, such as Gantt, Scheduler, Kanban, diagrams, charts, grids, spreadsheets, calendars, trees,...

See Software
React

React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. Declarative views make your code more predictable and easier to debug. Build encapsulated...

See Software
JsPHP

The free open-source JsPHP library. The JsPHP website is a 100% free community resource that provides a collaborative platform and web-based Integrated Development Environment (IDE) for building an open-source JavaScript library called JsPHP that provides an implementation of the PHP API for...

See Software
JointJS

JointJS is a powerful JavaScript diagramming library that helps developers and companies of any size build advanced visual and No-Code applications. It comes in two versions: open-source (JointJS) with limited features and professional (JointJS+), which extends the features of JointJS and offers...

See Software
FusionCharts

FusionCharts is a powerful and easy-to-use JavaScript charting library that helps developers to add interactive charts and data visualizations to their web and mobile applications. With 100+ chart types, including column, bar, line, area, pie, doughnut, scatter, bubble, and more, it's easy to...

See Software

Report inappropriate content

Hypothesis

The property-based testing library for Python

Get an email when there's a new version of Hypothesis

Features

Project Samples

Project Activity

Categories

License

Follow Hypothesis

User Reviews

Additional Project Details

Programming Language

Related Categories

Registered