# Rust Testing > Guide for Rust testing and Cargo usage. Use when writing unit or integration tests, configuring Cargo.toml, or running cargo commands. Use when this capability is needed. - Skill: `tomevault-io/rust-testing-8` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/rust-testing-8` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/rust-testing-8/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Integrations & APIs - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/rust-testing-8 --- # Rust Testing and Cargo Unit tests, integration tests, Cargo.toml configuration, and common commands. ## When to Use This Skill Activate when: - Writing unit tests with #[test] and #[cfg(test)] - Setting up integration tests in tests/ directory - Configuring Cargo.toml dependencies and profiles - Running cargo test, build, clippy, or fmt - Using #[should_panic] or Result-returning tests For test patterns, Cargo.toml configuration, and command reference, see `references/testing.md`. --- > Source: [vinnie357/claude-skills](https://github.com/vinnie357/claude-skills) — distributed by [TomeVault](https://tomevault.io).