use oneline_eyre::eyre::{eyre, Report, WrapErr}; #[test] fn ok() { oneline_eyre::install().unwrap(); let error: Report = eyre!("cause"); let wrapped: Result<(), _> = Err(error).wrap_err("middle").wrap_err("outer"); let output = format!("{:?}", wrapped.unwrap_err()); assert_eq!(output, "outer: middle: cause"); }