// Copyright 2025 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --expose-externalize-string

assertThrows(() => createExternalizableTwoByteString('foobarconstest' + 42));

let str = createExternalizableTwoByteString(
    createExternalizableTwoByteString('foobarconstest') + 42);
assertFalse(isOneByteString(str));