Implement Debug for BinaryHeap

src/binary_heap.rs

@@ -11,7 +11,7 @@
 use core::cmp::Ordering;
 use core::marker::PhantomData;
 use core::mem::ManuallyDrop;
-use core::{mem, ptr, slice};
+use core::{mem, ptr, slice, fmt};
 
 use generic_array::ArrayLength;
 
@@ -412,6 +412,17 @@ impl<'a, T> Drop for Hole<'a, T> {
     }
 }
 
+impl<T, N, K> fmt::Debug for BinaryHeap<T, N, K>
+where
+    N: ArrayLength<T>,
+    K: Kind,
+    T: Ord + fmt::Debug
+{
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_list().entries(self.iter()).finish()
+    }
+}
+
 impl<'a, T, N, K> IntoIterator for &'a BinaryHeap<T, N, K>
 where
     N: ArrayLength<T>,