async-std/tests/verbose_errors.rs

#[cfg(feature = "verbose-errors")]
mod verbose_tests {
    use async_std::{fs, task};

    #[test]
    fn open_file() {
        task::block_on(async {
            let non_existing_file =
                "/ashjudlkahasdasdsikdhajik/asdasdasdasdasdasd/fjuiklashdbflasas";
            let res = fs::File::open(non_existing_file).await;
            match res {
                Ok(_) => panic!("Found file with random name: We live in a simulation"),
                Err(e) => assert_eq!(
                    "Could not open /ashjudlkahasdasdsikdhajik/asdasdasdasdasdasd/fjuiklashdbflasas",
                    &format!("{}", e)
                ),
            }
        })
    }
}