How does cargo-nextest differ from cargo test?

Unlike the standard cargo test which runs tests in threads, cargo-nextest runs each test in its own process, providing better isolation, faster parallel execution, and advanced filtering.

Is cargo-nextest compatible with GitHub Actions?

Absolutely, it is designed for CI/CD and provides specialized output formats like JUnit XML for easy integration with GitHub Actions and other CI providers.

Can cargo-nextest handle flaky tests?

Yes, it includes built-in support for retrying tests that fail, allowing you to define retry logic for your entire suite or specific patterns.

Does this skill support Rust doctests?

No, cargo-nextest currently does not support doctests; you should continue to use 'cargo test --doc' for those specific cases.

Can I limit the number of threads used for tests?

Yes, you can control parallelism via the --test-threads flag or by defining test groups in the configuration file to manage resource-intensive tests.

Cargo Nextest Rust Test Runner

Name: Cargo Nextest Rust Test Runner
Author: laurigates

bylaurigates

•

Seguridad y Pruebas

Optimizes Rust testing workflows with high-performance parallel execution, advanced filtering, and resilient CI integration.

This skill enables Claude to efficiently manage Rust testing using cargo-nextest, a next-generation test runner designed for speed and reliability. It provides specialized guidance for executing tests in isolated processes, configuring complex test filters using expression language, and implementing robust CI pipelines with automatic retries for flaky tests. Whether you are debugging specific failures or optimizing workspace-wide test suites, this skill ensures a faster and more isolated testing environment compared to the standard cargo test command.

Características Principales

01Detailed CI integration with JUnit XML and JSON output support

02Resource-aware test grouping and execution throttling

033 GitHub stars

04Built-in flaky test management with automated retries

05Advanced test filtering using a powerful expression language

06Process-based parallel test execution for superior isolation

Casos de Uso

01Reducing CI pipeline duration for large-scale Rust workspaces

02Isolating and debugging flaky tests through automated retry configurations

03Filtering specific test subsets across complex crate hierarchies

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add laurigates/claude-plugins cargo-nextest

For use in Claude.ai and ChatGPT

Download Skill