async-std/tests/verbose_errors.rs
Pascal Hertleif 8ce3e78952 verbose errors feature
This adds a new "verbose-errors" feature flag to async-std that enables
wrapping certain errors in structures with more context. As an example,
we use it in `fs::File::{open,create}` to add the given path to the
error message (something that is lacking in std to annoyance of many).
2019-11-17 21:54:44 +01:00

20 lines
676 B
Rust

#[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)
),
}
})
}
}