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by pasxizeis 72 days ago
I followed the same testing approach when writing a Wasm binary parser (technically, a decoder)[0].

It was pretty helpful having the official spec suite available and a major boost of confidence that your parser is compliant.

Nevertheless, it was my own tests that found a regression in the latest published version of the spec[1], which shows how important it is to have a variety of implementations.

[0] https://github.com/agis/wadec

[1] https://github.com/WebAssembly/spec/issues/2066