Check that PeekMaxMut has a parent before reading it

tov · Dec 20, 2021 · f9c0d89 · f9c0d89
1 parent 8d92897
commit f9c0d89
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -1040,6 +1040,10 @@ mod tests {
         assert_eq!(1, h.peek_max_mut().unwrap().pop());
         assert_eq!(Some(&0), h.peek_min());
         assert_eq!(Some(&0), h.peek_max());
+
+        *h.peek_max_mut().unwrap() = 1;
+        assert_eq!(Some(&1), h.peek_min());
+        assert_eq!(Some(&1), h.peek_max());
     }
 
     #[test]