diff --git a/libcxx/test/language.support/support.dynamic/alloc.errors/new.badlength/bad_array_length.pass.cpp b/libcxx/test/language.support/support.dynamic/alloc.errors/new.badlength/bad_array_length.pass.cpp
new file mode 100644
index 000000000000..7de503304556
--- /dev/null
+++ b/libcxx/test/language.support/support.dynamic/alloc.errors/new.badlength/bad_array_length.pass.cpp
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test bad_array_length
+
+#include <new>
+#include <type_traits>
+#include <cassert>
+
+int main()
+{
+#if __LIBCPP_STD_VER > 11
+    static_assert((std::is_base_of<std::bad_alloc, std::bad_array_length>::value),
+                  "std::is_base_of<std::bad_alloc, std::bad_array_length>::value");
+    static_assert(std::is_polymorphic<std::bad_array_length>::value,
+                 "std::is_polymorphic<std::bad_array_length>::value");
+    std::bad_array_length b;
+    std::bad_array_length b2 = b;
+    b2 = b;
+    const char* w = b2.what();
+    assert(w);
+#endif
+}