From 97a785023643359b82e8a177358b47acc3da170f Mon Sep 17 00:00:00 2001
From: emily Crandall Fleischman <zyxw59@gmail.com>
Date: Tue, 9 Jul 2024 17:19:40 -0400
Subject: [PATCH] add test

---
 tests/test_bytes.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/test_bytes.rs b/tests/test_bytes.rs
index 017ce66ea..8e5d0ae1f 100644
--- a/tests/test_bytes.rs
+++ b/tests/test_bytes.rs
@@ -1173,6 +1173,15 @@ fn shared_is_unique() {
     assert!(c.is_unique());
 }
 
+#[test]
+fn mut_shared_is_unique() {
+    let mut b = BytesMut::from(LONG);
+    let c = b.split().freeze();
+    assert!(!c.is_unique());
+    drop(b);
+    assert!(c.is_unique());
+}
+
 #[test]
 fn test_bytesmut_from_bytes_static() {
     let bs = b"1b23exfcz3r";