JSTests/test262/test/built-ins/RegExp/prototype/multiline/cross-realm.js

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-get-regexp.prototype.multiline
description: A TypeError is thrown when the "this" value is an invalid cross-realm Object
info: |
  1. Let R be the this value.
  2. If Type(R) is not Object, throw a TypeError exception.
  3. If R does not have an [[OriginalFlags]] internal slot, then
     a. If SameValue(R, %RegExpPrototype%) is true, return undefined.
     b. Otherwise, throw a TypeError exception.
features: [cross-realm]
---*/

var get = Object.getOwnPropertyDescriptor(RegExp.prototype, 'multiline').get;
var other = $262.createRealm().global;
var otherRegExpProto = other.RegExp.prototype;
var otherRegExpGetter = Object.getOwnPropertyDescriptor(otherRegExpProto, 'multiline').get;

assert.throws(TypeError, function() {
  get.call(otherRegExpProto);
}, 'cross-realm RegExp.prototype');

assert.throws(other.TypeError, function() {
  otherRegExpGetter.call(RegExp.prototype);
}, 'cross-realm RegExp.prototype getter method against primary realm RegExp.prototype');