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authorValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
committerValentin Popov <valentin@popov.link>2024-01-08 00:21:28 +0300
commit1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch)
tree7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/thiserror/tests/test_transparent.rs
parent5ecd8cf2cba827454317368b68571df0d13d7842 (diff)
downloadfparkan-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.rs78
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());
+}