pytestini

pytestini is a hypothetical Python testing tool designed as an extension of the pytest ecosystem. It provides a test discovery and execution model that emphasizes modularity and extensibility through a plugin interface, while offering an alternative core runner and parallel execution options. The project seeks to balance compatibility with existing pytest suites and the flexibility of its own features.

Key features include automatic test collection from conventional test modules, a fixture system with scoped lifetimes, and support for parameterized tests. The framework exposes a stable plugin API, allowing third‑party plugins to participate in collection, execution, and reporting. Parallel test execution is supported via a built‑in scheduler that can utilize multiple CPU cores.

Architecture is componentized into a core runner, a discovery and collection layer, a fixture manager, and a plug‑in registry. Hooks enable plugins to customize behavior at stages such as collection, setup, and teardown, while keeping the core deterministic and reproducible. Output formats include console reports and machine‑readable formats such as JSON.

Typical workflow involves installing the tool, writing tests following its conventions, and invoking the runner through simple commands. Users can select verbosity, filter tests, and configure parallel execution with command line options or a configuration file. The project emphasizes minimal configuration for common cases and straightforward integration with existing pytest test suites.

Note: pytestini is presented here as a fictional project for illustrative purposes and is not a reference to a real software project. See also pytest, nose2, and unittest for related Python testing tools.