mv: gnu test case part-hardlink fix

src/uu/mv/Cargo.toml

@@ -20,13 +20,17 @@ path = "src/mv.rs"
 clap = { workspace = true }
 fs_extra = { workspace = true }
 indicatif = { workspace = true }
+walkdir = { workspace = true }
 uucore = { workspace = true, features = [
   "backup-control",
   "fs",
   "fsxattr",
   "update-control",
 ] }
 
+[dev-dependencies]
+tempfile = { workspace = true }
+
 [[bin]]
 name = "mv"
 path = "src/main.rs"

src/uu/mv/src/error.rs

@@ -7,6 +7,8 @@
 
 use uucore::error::UError;
 
+use fs_extra::error::Error as FsXError;
+
 #[derive(Debug)]
 pub enum MvError {
     NoSuchFile(String),
@@ -19,6 +21,8 @@
     NotADirectory(String),
     TargetNotADirectory(String),
     FailedToAccessNotADirectory(String),
+    FsXError(FsXError),
+    NotAllFilesMoved,
 }
 
 impl Error for MvError {}
@@ -49,6 +53,18 @@
             Self::FailedToAccessNotADirectory(t) => {
                 write!(f, "failed to access {t}: Not a directory")
             }
+            Self::FsXError(err) => {
+                write!(f, "{err}")
+            }
+            Self::NotAllFilesMoved => {
+                write!(f, "failed to move all files")
+            }
         }
     }
 }
+
+impl From<FsXError> for MvError {
+    fn from(err: FsXError) -> Self {
+        Self::FsXError(err)
+    }
+}