What problem does it solve?
This Skill helps Rust developers design, write, and maintain reliable tests without guessing which pattern fits a given problem. It reduces flaky coverage, unclear assertions, and ad hoc test structure by giving a practical testing workflow.
Core Features & Use Cases
- Unit Tests: Organize module-level tests, validate outputs, and cover error paths with clear assertions.
- Integration Tests: Verify end-to-end crate behavior across public APIs and cross-module interactions.
- Async, Property-Based, and Mocked Testing: Test Tokio workflows, explore input space with proptest, isolate dependencies with mockall, and measure confidence with coverage tooling.
- Use Case: When a Rust service has parsing logic, async I/O, and external storage dependencies, this Skill helps you choose the right combination of tests to prove correctness before shipping.
Quick Start
Use this skill to identify the Rust code path you want to validate and then write the smallest failing test first, followed by the minimal implementation needed to make it pass.