Schemathesis is a property-based API testing tool for services described by OpenAPI or GraphQL schemas. It generates test inputs, adapts to server responses and chains operations into workflows designed to expose edge cases and undocumented behaviour.
This is free and open source software.
Key Features
- Generates API tests automatically from schemas.
- Supports OpenAPI 2.0, 3.0, 3.1 and 3.2.
- Supports GraphQL schemas.
- Produces valid, invalid, random and boundary-value inputs.
- Adapts generated tests in response to server behaviour.
- Threads values from responses into subsequent requests.
- Chains API operations into realistic stateful workflows.
- Detects server errors and undocumented response structures.
- Finds schema violations, validation bypasses and integration failures.
- Minimizes failing examples to simplify debugging.
- Produces curl commands that reproduce discovered failures.
- Runs through a command-line interface or Python API.
- Integrates with pytest and Hypothesis.
- Runs within GitHub Actions and other CI environments.
- Exports Allure, JUnit XML and HAR reports.
Website: github.com/schemathesis/schemathesis
Support:
Developer: Dmitry Dygalo
License: MIT License
Schemathesis is written in Python. Learn Python with our recommended free books and free tutorials.
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