remove lossy conversions, fix linting and doc tests, add more tests for Path replacement methods

crates/bevy_asset/src/io/embedded/embedded_watcher.rs

@@ -3,7 +3,7 @@ use crate::io::{
     memory::Dir,
     AssetSourceEvent, AssetWatcher,
 };
-use alloc::{boxed::Box, sync::Arc, vec::Vec};
+use alloc::{boxed::Box, string::ToString, sync::Arc, vec::Vec};
 use bevy_platform::collections::HashMap;
 use core::time::Duration;
 use notify_debouncer_full::{notify::RecommendedWatcher, Debouncer, RecommendedCache};
@@ -40,7 +40,9 @@ impl EmbeddedWatcher {
             last_event: None,
         };
         let watcher = new_asset_event_debouncer(
-            root.to_string_lossy().to_string(),
+            root.to_str()
+                .expect("non unicode characters found in path")
+                .to_string(),
             debounce_wait_time,
             handler,
         )

crates/bevy_asset/src/io/source.rs

@@ -545,7 +545,9 @@ impl AssetSource {
                 if path.exists() {
                     Some(Box::new(
                         super::file::FileWatcher::new(
-                            path.to_string_lossy().to_string(),
+                            path.to_str()
+                                .expect("non unicode characters found in path")
+                                .to_string(),
                             sender,
                             file_debounce_wait_time,
                         )

crates/bevy_asset/src/path.rs

@@ -638,7 +638,11 @@ impl<'a> From<&'a Path> for AssetPath<'a> {
     fn from(path: &'a Path) -> Self {
         Self {
             source: AssetSourceId::Default,
-            path: CowArc::from(path.to_string_lossy().to_string()),
+            path: CowArc::from(
+                path.to_str()
+                    .expect("non unicode characters found in file path")
+                    .to_string(),
+            ),
             label: None,
         }
     }
@@ -649,7 +653,11 @@ impl From<PathBuf> for AssetPath<'static> {
     fn from(path: PathBuf) -> Self {
         Self {
             source: AssetSourceId::Default,
-            path: CowArc::from(path.to_string_lossy().to_string()),
+            path: CowArc::from(
+                path.to_str()
+                    .expect("non unicode characters found in file path")
+                    .to_string(),
+            ),
             label: None,
         }
     }
@@ -1078,4 +1086,24 @@ mod tests {
         assert_eq!(AssetPath::from("a/b/"), AssetPath::from("a/b"));
         assert_eq!(AssetPath::from("a/b/#c"), AssetPath::from("a/b#c"));
     }
+
+    #[test]
+    fn test_path_components() {
+        use alloc::vec;
+        use alloc::vec::Vec;
+
+        assert_eq!(
+            AssetPath::from("a/b/c")
+                .path_components()
+                .collect::<Vec<_>>(),
+            vec!["a", "b", "c"]
+        );
+
+        assert_eq!(
+            AssetPath::from("a/b/c/../d")
+                .path_components()
+                .collect::<Vec<_>>(),
+            vec!["a", "b", "c", "..", "d"]
+        );
+    }
 }