From ffcf0bdf51dfda942dfea66ec3232179081bb9f8 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sun, 7 Jun 2026 11:23:00 +0000
Subject: object/tree/mode: Roundtrip tests

---
 object/tree/mode/roundtrip_test.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 object/tree/mode/roundtrip_test.go

diff --git a/object/tree/mode/roundtrip_test.go b/object/tree/mode/roundtrip_test.go
new file mode 100644
index 00000000..af493049
--- /dev/null
+++ b/object/tree/mode/roundtrip_test.go
@@ -0,0 +1,24 @@
+package mode_test
+
+import (
+	"testing"
+
+	"lindenii.org/go/furgit/object/tree/mode"
+)
+
+func TestParseAppendRoundTrip(t *testing.T) {
+	t.Parallel()
+
+	for _, m := range []mode.Mode{mode.Directory, mode.Regular, mode.Executable, mode.Symlink, mode.Gitlink} {
+		raw := m.Append(nil)
+
+		got, err := mode.Parse(raw)
+		if err != nil {
+			t.Fatalf("Parse(%q): %v", raw, err)
+		}
+
+		if got != m {
+			t.Fatalf("round trip %o -> %q -> %o", m, raw, got)
+		}
+	}
+}
-- 
cgit v1.3.1-10-gc9f91