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Add test of transparent variant in enum with format args

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error: cannot have both #[error(transparent)] and a display attribute
      --> tests/test_transparent.rs:51:5
       |
    51 |     #[error("this failed: {0}_{1}")]
       |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This commit is contained in:
David Tolnay 2024-11-05 17:02:31 -05:00
parent 02aaafc783
commit 71adf02435
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1 changed files with 18 additions and 0 deletions
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18
tests/test_transparent.rs
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@ -45,6 +45,24 @@ fn test_transparent_enum() {
assert_eq!("inner", error.source().unwrap().to_string());
}
#[test]
fn test_transparent_enum_with_default_message() {
#[derive(Error, Debug)]
#[error("this failed: {0}_{1}")]
enum Error {
This(i32, i32),
#[error(transparent)]
Other(anyhow::Error),
}
let error = Error::This(-1, -1);
assert_eq!("this failed: -1_-1", 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)]