In main.rs, add a unit test for the cargo_dir function that checks that it panics if we try to run this command in a directory that doesn't have a Cargo.toml and thus would have no idea where to look to figure out where that crate might be!
Use the existing test marked should_panic for an example of how to make a test check that a function panics.
I doubt that this test will pass currently! Eventually, I'd like this to panic with a message like "Cannot find Cargo.toml file in the current directory" or similar.
In
main.rs, add a unit test for thecargo_dirfunction that checks that it panics if we try to run this command in a directory that doesn't have aCargo.tomland thus would have no idea where to look to figure out where that crate might be!Use the existing test marked
should_panicfor an example of how to make a test check that a function panics.I doubt that this test will pass currently! Eventually, I'd like this to panic with a message like "Cannot find
Cargo.tomlfile in the current directory" or similar.