--- /dev/null
+++ xnu/xnu-10002.61.3/tests/bounded_array_ref_src/size.cpp
@@ -0,0 +1,45 @@
+//
+// Tests for
+//  size_t size() const;
+//
+
+#include <libkern/c++/bounded_array_ref.h>
+#include "test_policy.h"
+#include <cstddef>
+#include <darwintest.h>
+#include <darwintest_utils.h>
+
+struct T { int i; };
+
+template <typename T>
+static void
+tests()
+{
+	T array[5] = {T{0}, T{1}, T{2}, T{3}, T{4}};
+
+	{
+		test_bounded_array_ref<T> const view(&array[0], static_cast<std::size_t>(0));
+		std::size_t size = view.size();
+		CHECK(size == 0);
+	}
+	{
+		test_bounded_array_ref<T> const view(&array[0], 1);
+		std::size_t size = view.size();
+		CHECK(size == 1);
+	}
+	{
+		test_bounded_array_ref<T> const view(&array[0], 2);
+		std::size_t size = view.size();
+		CHECK(size == 2);
+	}
+	{
+		test_bounded_array_ref<T> const view(&array[0], 5);
+		std::size_t size = view.size();
+		CHECK(size == 5);
+	}
+}
+
+T_DECL(size, "bounded_array_ref.size") {
+	tests<T>();
+	tests<T const>();
+}