Poking through clap sources, setting the COLUMNS=... env var may work for the failures here, but that'll only work if the terminal-size crate otherwise can't find the dimensions of stdout/stderr/stdin/etc. I think though we could arrange for everything to be a pipe (or /dev/null) to subprocesses in tests to force that to fail, and then we'd always set .env("COLUMNS", "80") or something like that and it might force the same-width everywhere?

I think it's already a pipe? https://github.com/bytecodealliance/wasm-tools/blob/main/tests/cli.rs#L155

I added .env("COLUMNS", "80") and it works for me locally, although of course it worked for me locally in the first place.

Ah the old nemesis of Windows... Looks like the issue is:

       <Usage: wasm-tools parse [OPTIONS] [INPUT]
       >Usage: wasm-tools.exe parse [OPTIONS] [INPUT]

Maybe a hammer like this could work where the tests just replace .exe with nothing and see how that works?

Green now :)