vendor/anyhow/tests/test_convert.rs

   1 #![allow(clippy::unnecessary_wraps)]
   2
   3 mod drop;
   4
   5 use self::drop::{DetectDrop, Flag};
   6 use anyhow::{Error, Result};
   7 use std::error::Error as StdError;
   8
   9 #[test]
  10 fn test_convert() {
  11     let has_dropped = Flag::new();
  12     let error = Error::new(DetectDrop::new(&has_dropped));
  13     let box_dyn = Box::<dyn StdError>::from(error);
  14     assert_eq!("oh no!", box_dyn.to_string());
  15     drop(box_dyn);
  16     assert!(has_dropped.get());
  17 }
  18
  19 #[test]
  20 fn test_convert_send() {
  21     let has_dropped = Flag::new();
  22     let error = Error::new(DetectDrop::new(&has_dropped));
  23     let box_dyn = Box::<dyn StdError + Send>::from(error);
  24     assert_eq!("oh no!", box_dyn.to_string());
  25     drop(box_dyn);
  26     assert!(has_dropped.get());
  27 }
  28
  29 #[test]
  30 fn test_convert_send_sync() {
  31     let has_dropped = Flag::new();
  32     let error = Error::new(DetectDrop::new(&has_dropped));
  33     let box_dyn = Box::<dyn StdError + Send + Sync>::from(error);
  34     assert_eq!("oh no!", box_dyn.to_string());
  35     drop(box_dyn);
  36     assert!(has_dropped.get());
  37 }
  38
  39 #[test]
  40 fn test_question_mark() -> Result<(), Box<dyn StdError>> {
  41     fn f() -> Result<()> {
  42         Ok(())
  43     }
  44     f()?;
  45     Ok(())
  46 }