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author | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
commit | 1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch) | |
tree | 7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/thiserror/tests/test_transparent.rs | |
parent | 5ecd8cf2cba827454317368b68571df0d13d7842 (diff) | |
download | fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip |
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/thiserror/tests/test_transparent.rs')
-rw-r--r-- | vendor/thiserror/tests/test_transparent.rs | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/vendor/thiserror/tests/test_transparent.rs b/vendor/thiserror/tests/test_transparent.rs new file mode 100644 index 0000000..6f3c03e --- /dev/null +++ b/vendor/thiserror/tests/test_transparent.rs @@ -0,0 +1,78 @@ +use anyhow::anyhow; +use std::error::Error as _; +use std::io; +use thiserror::Error; + +#[test] +fn test_transparent_struct() { + #[derive(Error, Debug)] + #[error(transparent)] + struct Error(ErrorKind); + + #[derive(Error, Debug)] + enum ErrorKind { + #[error("E0")] + E0, + #[error("E1")] + E1(#[from] io::Error), + } + + let error = Error(ErrorKind::E0); + assert_eq!("E0", error.to_string()); + assert!(error.source().is_none()); + + let io = io::Error::new(io::ErrorKind::Other, "oh no!"); + let error = Error(ErrorKind::from(io)); + assert_eq!("E1", error.to_string()); + error.source().unwrap().downcast_ref::<io::Error>().unwrap(); +} + +#[test] +fn test_transparent_enum() { + #[derive(Error, Debug)] + enum Error { + #[error("this failed")] + This, + #[error(transparent)] + Other(anyhow::Error), + } + + let error = Error::This; + assert_eq!("this failed", error.to_string()); + + let error = Error::Other(anyhow!("inner").context("outer")); + assert_eq!("outer", error.to_string()); + assert_eq!("inner", error.source().unwrap().to_string()); +} + +#[test] +fn test_anyhow() { + #[derive(Error, Debug)] + #[error(transparent)] + struct Any(#[from] anyhow::Error); + + let error = Any::from(anyhow!("inner").context("outer")); + assert_eq!("outer", error.to_string()); + assert_eq!("inner", error.source().unwrap().to_string()); +} + +#[test] +fn test_non_static() { + #[derive(Error, Debug)] + #[error(transparent)] + struct Error<'a> { + inner: ErrorKind<'a>, + } + + #[derive(Error, Debug)] + enum ErrorKind<'a> { + #[error("unexpected token: {:?}", token)] + Unexpected { token: &'a str }, + } + + let error = Error { + inner: ErrorKind::Unexpected { token: "error" }, + }; + assert_eq!("unexpected token: \"error\"", error.to_string()); + assert!(error.source().is_none()); +} |