Rust Testing Best Practices

Comprehensive testing guide for Rust applications, covering CLI testing, library testing, async patterns, and CI integration. Contains 42 rules across 8 categories, prioritized by impact to guide test design, mocking strategies, and CI optimization.

When to Apply

Reference these guidelines when:

• Writing unit tests for Rust libraries or modules
• Creating integration tests for CLI applications
• Setting up mocking with mockall or trait-based design
• Testing async code with Tokio
• Configuring CI pipelines for Rust projects

Rule Categories by Priority