error_tools 0.32.0

Basic exceptions handling mechanism
Documentation 
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#![allow(unused_imports)]
use super::*;

//

#[ test ]
fn err_with() {
  use the_module::ErrWith;
  let result: Result<(), std::io::Error> = Err(std::io::Error::other("an error occurred"));
  let got: Result<(), (&str, std::io::Error)> = result.err_with(|| "additional context");
  let exp: Result<(), (&str, std::io::Error)> = Err((
    "additional context",
    std::io::Error::other("an error occurred"),
  ));
  assert_eq!(got.as_ref().unwrap_err().0, exp.as_ref().unwrap_err().0);
  assert!(got.is_err());
}

//

#[ test ]
fn err_with_report() {
  use the_module::ErrWith;
  let result: Result<(), std::io::Error> = Err(std::io::Error::other("an error occurred"));
  let report = "additional context";
  let got: Result<(), (&str, std::io::Error)> = result.err_with_report(&report);
  let exp: Result<(), (&str, std::io::Error)> = Err((
    "additional context",
    std::io::Error::other("an error occurred"),
  ));
  assert_eq!(got.as_ref().unwrap_err().0, exp.as_ref().unwrap_err().0);
  assert!(got.is_err());
}