Testing on wasm32-unknown-unknown with wasm-bindgen-test

The wasm-bindgen-test crate is an experimental test harness for Rust programs compiled to Wasm using wasm-bindgen and the wasm32-unknown-unknown target.

Goals

• Write tests for Wasm as similar as possible to how you normally would write #[test]-style unit tests for native targets.

• Run the tests with the usual cargo test command but with an explicit wasm target:

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  cargo test --target wasm32-unknown-unknown