Go
Go has had WebAssembly support since Go 1.11 via GOARCH=wasm GOOS=js, and since Go 1.21 via the WASI target GOOS=wasip1. Testing Go WASM code requires a different test runner than the standard go test command — either the wasm_exec.js Node.js harness for browser-
WebAssembly
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
WebAssembly
WebAssembly modules in browsers are instantiated via JavaScript and expose their functionality through JS exports. End-to-end and integration tests for WASM web apps use the same tools as regular web tests — Playwright for browser automation and Jest for unit-level JS/WASM integration — but with a few WASM-