use std::error::Error;
use std::{fmt, io};
#[derive(Debug)]
pub enum DogstatsdError {
IoError(io::Error),
}
use self::DogstatsdError::*;
impl fmt::Display for DogstatsdError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
IoError(ref error) => write!(f, "{}", error),
}
}
}
impl Error for DogstatsdError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match self {
IoError(error) => Some(error),
}
}
}
impl From<io::Error> for DogstatsdError {
fn from(e: io::Error) -> Self {
IoError(e)
}
}
#[cfg(test)]
mod tests {
use super::DogstatsdError;
use std::io;
#[test]
fn test_error_display() {
let err = DogstatsdError::from(io::Error::new(io::ErrorKind::Other, "oh no!"));
assert_eq!(format!("{}", err), "oh no!".to_owned());
}
}