Rust Testing Patterns Comprehensive Rust testing patterns for writing reliable, maintainable tests following TDD methodology. When to Use - Writing new Rust functions, methods, or traits - Adding test coverage to existing code - Creating benchmarks for performance-critical code - Implementing property-based tests for input validation - Following TDD workflow in Rust projects How It Works 1. Identify target code — Find the function, trait, or module to test 2. Write a test — Use in a module, rstest for parameterized tests, or proptest for property-based tests 3. Mock dependencies — Use mockall…