From 7fca001b13d22a0aa7e2196018323b3edca7586a Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 13 Sep 2025 18:46:01 +0200
Subject: [PATCH 1/2] feat: Add `Kind::empty_blob()`` and `Kind::empty_tree()``
 methods.

---
 gix-hash/src/kind.rs        | 12 ++++++++++++
 gix-hash/tests/hash/kind.rs | 16 ++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/gix-hash/src/kind.rs b/gix-hash/src/kind.rs
index 5c7a0316b8d..a06f4df119a 100644
--- a/gix-hash/src/kind.rs
+++ b/gix-hash/src/kind.rs
@@ -113,4 +113,16 @@ impl Kind {
             Kind::Sha1 => ObjectId::null_sha1(),
         }
     }
+
+    /// Create an owned empty-blob id of our hash kind.
+    #[inline]
+    pub const fn empty_blob(&self) -> ObjectId {
+        ObjectId::empty_blob(*self)
+    }
+
+    /// Create an owned empty-tree id of our hash kind.
+    #[inline]
+    pub const fn empty_tree(&self) -> ObjectId {
+        ObjectId::empty_tree(*self)
+    }
 }
diff --git a/gix-hash/tests/hash/kind.rs b/gix-hash/tests/hash/kind.rs
index 300a679fd2c..55182ea8122 100644
--- a/gix-hash/tests/hash/kind.rs
+++ b/gix-hash/tests/hash/kind.rs
@@ -14,3 +14,19 @@ mod from_hex_len {
         assert_eq!(Kind::from_hex_len(65), None);
     }
 }
+
+mod empty_objects {
+    use gix_hash::{Kind, ObjectId};
+
+    #[test]
+    fn empty_blob() {
+        let kind = Kind::Sha1;
+        assert_eq!(kind.empty_blob(), ObjectId::empty_blob(kind));
+    }
+
+    #[test]
+    fn empty_tree() {
+        let kind = Kind::Sha1;
+        assert_eq!(kind.empty_tree(), ObjectId::empty_tree(kind));
+    }
+}

From 41c40adf3d1a8505dd53dc49a6940c834e71e169 Mon Sep 17 00:00:00 2001
From: Sebastian Thiel <sebastian.thiel@icloud.com>
Date: Sat, 13 Sep 2025 18:49:03 +0200
Subject: [PATCH 2/2] refactor

---
 gix-hash/src/kind.rs        |  4 ++--
 gix-hash/tests/hash/kind.rs | 24 +++++++++++-------------
 2 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/gix-hash/src/kind.rs b/gix-hash/src/kind.rs
index a06f4df119a..de787b417fd 100644
--- a/gix-hash/src/kind.rs
+++ b/gix-hash/src/kind.rs
@@ -114,13 +114,13 @@ impl Kind {
         }
     }
 
-    /// Create an owned empty-blob id of our hash kind.
+    /// The hash of an empty blob.
     #[inline]
     pub const fn empty_blob(&self) -> ObjectId {
         ObjectId::empty_blob(*self)
     }
 
-    /// Create an owned empty-tree id of our hash kind.
+    /// The hash of an empty tree.
     #[inline]
     pub const fn empty_tree(&self) -> ObjectId {
         ObjectId::empty_tree(*self)
diff --git a/gix-hash/tests/hash/kind.rs b/gix-hash/tests/hash/kind.rs
index 55182ea8122..ec5bf3f1737 100644
--- a/gix-hash/tests/hash/kind.rs
+++ b/gix-hash/tests/hash/kind.rs
@@ -1,3 +1,5 @@
+use gix_hash::{Kind, ObjectId};
+
 mod from_hex_len {
     use gix_hash::Kind;
 
@@ -15,18 +17,14 @@ mod from_hex_len {
     }
 }
 
-mod empty_objects {
-    use gix_hash::{Kind, ObjectId};
-
-    #[test]
-    fn empty_blob() {
-        let kind = Kind::Sha1;
-        assert_eq!(kind.empty_blob(), ObjectId::empty_blob(kind));
-    }
+#[test]
+fn empty_blob() {
+    let sha1 = Kind::Sha1;
+    assert_eq!(sha1.empty_blob(), ObjectId::empty_blob(sha1));
+}
 
-    #[test]
-    fn empty_tree() {
-        let kind = Kind::Sha1;
-        assert_eq!(kind.empty_tree(), ObjectId::empty_tree(kind));
-    }
+#[test]
+fn empty_tree() {
+    let sha1 = Kind::Sha1;
+    assert_eq!(sha1.empty_tree(), ObjectId::empty_tree(sha1));
 }