Related topics
- Testing — See testing patterns specific to Rust.
- Data Quality & Testing — See data quality and testing from the data engineering perspective.
- Evaluation & Testing — See testing practices applied to ML systems.
- Testing & Deployment — See frontend testing with Vitest and Playwright.
- Testing — See testing patterns specific to Go.
- Vulnerability Assessment — See vulnerability assessment from a security testing perspective.
- Testing — See frontend testing with Vitest and Vue Test Utils.
- Testing & Deployment — See unit and integration testing patterns in Elixir.
Unit & Integration Testing
This topic covers the full spectrum of testing in software engineering, from isolated unit tests through integration tests that verify real system behavior. All examples use Rust.
Contents
- Unit Testing Fundamentals — What makes a good unit test, the AAA pattern, test naming, Rust testing mechanics, assert macros,
#[should_panic]. - Test-Driven Development — The Red-Green-Refactor cycle, step-by-step TDD in Rust, when TDD works well and when it is awkward, anti-patterns.
- Property-Based Testing — Properties vs. examples,
proptestin Rust, custom strategies, shrinking, real bugs found by property tests. - Mocking and Test Doubles — Stubs, mocks, fakes, spies. Trait-based dependency injection in Rust, the
mockallcrate, when to mock vs. use real implementations. - Integration Testing — Testing with real databases (
sqlxtest fixtures), API endpoint testing, test containers, test isolation strategies. - Code Coverage and Metrics — Line vs. branch vs. function coverage, the coverage trap, useful targets (70-80%),
cargo-tarpaulin,nextest.
Diagrams
