Rust
Rust Doctests: Testing Code Examples in Documentation
Rust has a feature that no other mainstream language matches: every code example in your documentation is compiled and run as a test by default.
Rust
Latest
Rust
Testing WASM Modules with Wasmtime: Unit Tests, WASI, and Sandboxing
Wasmtime is a fast, standards-compliant WebAssembly runtime from the Bytecode Alliance. Its Rust crate lets you load, instantiate, and call WASM modules from a Rust host — making it ideal for host-side unit tests that verify WASM module behavior, test WASI system calls in a controlled sandbox, and validate
Rust
Testing Rust WebAssembly with wasm-pack: wasm-bindgen-test in Browser and Node.js
wasm-pack is the standard toolchain for building and testing Rust code compiled to WebAssembly. Its wasm-pack test command runs your Rust tests inside a real browser (headless Chrome, Firefox, or Safari) or under Node.js, giving you confidence that your WASM module behaves correctly in the environments where
WebAssembly
Testing WASM Components with the Component Model and wit-bindgen
The WebAssembly Component Model is a standard for composing WASM modules with typed interfaces defined in WIT (WebAssembly Interface Types). It replaces ad-hoc ABI conventions with a formal type system — records, variants, options, results — and generates host and guest bindings automatically via wit-bindgen. Testing components means verifying these
Rust
Testing Async Rust with Tokio: Unit Tests, Mocking, and Timeouts
Tokio is Rust's most popular async runtime. Testing async Rust code requires a Tokio runtime to drive futures to completion.
Fuzz Testing
Fuzzing Rust Code with cargo-fuzz, libFuzzer, and the arbitrary Crate
Rust's memory safety guarantees eliminate an entire class of bugs that make fuzzing critical in C/C++ — but Rust code can still have logic errors, integer overflows, panics, and unexpected behavior. cargo-fuzz brings libFuzzer to Rust with a clean command-line interface, and the arbitrary crate enables
Testing
Tauri App Testing: Testing Rust-Based Desktop Applications
Tauri is a framework for building lightweight desktop applications using web technologies for the frontend and Rust for the backend.
Rust
Parameterized Tests in Rust with rstest: Fixtures and Test Cases
Standard Rust tests don't support parameterized test cases or reusable fixtures out of the box.
Rust
Property-Based Testing in Rust with proptest
Example-based tests check specific cases you've thought of. Property-based tests let the framework generate hundreds of random inputs and find cases you haven't thought of. For Rust, the proptest crate brings property-based testing with automatic failure shrinking into the standard cargo test workflow.
Rust
Rust Benchmarking with Criterion: Performance Testing Guide
Rust's built-in #[bench] attribute requires nightly and lacks statistical rigor.
Rust
cargo-nextest: Faster Rust Test Runner with Better Output
cargo-nextest is a next-generation test runner for Rust that replaces cargo test with a process-per-test execution model, better terminal output, built-in retry logic, and significantly faster CI runs. It's a drop-in replacement — your existing tests work unchanged. Why nextest? cargo test runs
Rust
Rust Testing Guide: cargo test, Unit Tests, and Integration Tests
Rust ships with a built-in test framework. No extra dependencies, no configuration files — just annotate a function with #[test] and run cargo test.