From 20431706a863f92cb37dc512fef6e48d192aaf2c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:11:38 +0200
Subject: Merging upstream version 1.66.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/once_cell/tests/it.rs | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'vendor/once_cell/tests/it.rs')

diff --git a/vendor/once_cell/tests/it.rs b/vendor/once_cell/tests/it.rs
index 476f14bb0..410b93b64 100644
--- a/vendor/once_cell/tests/it.rs
+++ b/vendor/once_cell/tests/it.rs
@@ -137,6 +137,41 @@ mod unsync {
         assert_eq!(called.get(), 1);
     }
 
+    #[test]
+    fn lazy_force_mut() {
+        let called = Cell::new(0);
+        let mut x = Lazy::new(|| {
+            called.set(called.get() + 1);
+            92
+        });
+        assert_eq!(called.get(), 0);
+        let v = Lazy::force_mut(&mut x);
+        assert_eq!(called.get(), 1);
+
+        *v /= 2;
+        assert_eq!(*x, 46);
+        assert_eq!(called.get(), 1);
+    }
+
+    #[test]
+    fn lazy_get_mut() {
+        let called = Cell::new(0);
+        let mut x: Lazy<u32, _> = Lazy::new(|| {
+            called.set(called.get() + 1);
+            92
+        });
+
+        assert_eq!(called.get(), 0);
+        assert_eq!(*x, 92);
+
+        let mut_ref: &mut u32 = Lazy::get_mut(&mut x).unwrap();
+        assert_eq!(called.get(), 1);
+
+        *mut_ref /= 2;
+        assert_eq!(*x, 46);
+        assert_eq!(called.get(), 1);
+    }
+
     #[test]
     fn lazy_default() {
         static CALLED: AtomicUsize = AtomicUsize::new(0);
-- 
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