Merge commit '6eba9cd92c295c5389944f6adda1f1e83b2cb008' as 'subprojects/thiserror'

subprojects/thiserror/tests/test_path.rs

@@ -0,0 +1,54 @@
+#![cfg(feature = "std")]
+
+use core::fmt::Display;
+use ref_cast::RefCast;
+use std::path::{Path, PathBuf};
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+#[error("failed to read '{file}'")]
+struct StructPathBuf {
+    file: PathBuf,
+}
+
+#[derive(Error, Debug, RefCast)]
+#[repr(C)]
+#[error("failed to read '{file}'")]
+struct StructPath {
+    file: Path,
+}
+
+#[derive(Error, Debug)]
+enum EnumPathBuf {
+    #[error("failed to read '{0}'")]
+    Read(PathBuf),
+}
+
+#[derive(Error, Debug)]
+#[error("{tail}")]
+pub struct UnsizedError {
+    pub head: i32,
+    pub tail: str,
+}
+
+#[derive(Error, Debug)]
+pub enum BothError {
+    #[error("display:{0} debug:{0:?}")]
+    DisplayDebug(PathBuf),
+    #[error("debug:{0:?} display:{0}")]
+    DebugDisplay(PathBuf),
+}
+
+fn assert<T: Display>(expected: &str, value: T) {
+    assert_eq!(expected, value.to_string());
+}
+
+#[test]
+fn test_display() {
+    let path = Path::new("/thiserror");
+    let file = path.to_owned();
+    assert("failed to read '/thiserror'", StructPathBuf { file });
+    let file = path.to_owned();
+    assert("failed to read '/thiserror'", EnumPathBuf::Read(file));
+    assert("failed to read '/thiserror'", StructPath::ref_cast(path));
+}