# inline-tests > Rust-like inline testing in Python, without the compiler. inline-tests is a pytest plugin for colocating tests with implementation, Rust-style. Use @test or @it decorators to mark functions as tests, then run with `itest`. Tests live next to the code they test. Key features: @test/@it decorators, AST-based collection, zero overhead when not testing, full pytest compatibility including fixtures, parametrize, async, and all plugins. ## Getting Started - [Installation](https://oss.dedaluslabs.ai/inline-tests-python/getting-started/installation/index.md) - [Quick Start](https://oss.dedaluslabs.ai/inline-tests-python/getting-started/quickstart/index.md) ## Usage - [The Decorator](https://oss.dedaluslabs.ai/inline-tests-python/usage/decorator/index.md) - [CLI](https://oss.dedaluslabs.ai/inline-tests-python/usage/cli/index.md) - [pytest Integration](https://oss.dedaluslabs.ai/inline-tests-python/usage/pytest-integration/index.md) ## Reference - [API](https://oss.dedaluslabs.ai/inline-tests-python/reference/api/index.md) - [Extras](https://oss.dedaluslabs.ai/inline-tests-python/reference/extras/index.md)