How to use trycmd to test your Rust CLI?
Recently we released Rustup 1.26.0, which includes a bunch of new features and bug fixes. We also upgraded the clap version to 3.2.25, which is a major version upgrade. This upgrade was a bit tricky, because clap 3.0.0 had a lot of breaking changes. We needed to make sure that the new version of Rustup worked as expected. So before we upgraded clap we added UI tests for Rustup. We use trycmd to test the CLI of Rustup....