node/test/parallel/test-vm-ownpropertynames.js
Chengzhong Wu d2479fa020
vm: return all own names and symbols in property enumerator interceptor
Property enumerator methods like `Object.getOwnPropertyNames`,
`Object.getOwnPropertySymbols`, and `Object.keys` all invokes the
named property enumerator interceptor. V8 will filter the result based
on the invoked enumerator variant. Fix the enumerator interceptor to
return all potential properties.

PR-URL: https://github.com/nodejs/node/pull/54522
Refs: https://github.com/jsdom/jsdom/issues/3688
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
2024-08-30 11:22:58 +00:00

27 lines
883 B
JavaScript

'use strict';
require('../common');
const vm = require('vm');
const assert = require('assert');
const sym1 = Symbol('1');
const sym2 = Symbol('2');
const sandbox = {
a: true,
[sym1]: true,
};
Object.defineProperty(sandbox, 'b', { value: true });
Object.defineProperty(sandbox, sym2, { value: true });
const ctx = vm.createContext(sandbox);
assert.deepStrictEqual(Reflect.ownKeys(sandbox), ['a', 'b', sym1, sym2]);
assert.deepStrictEqual(Object.getOwnPropertyNames(sandbox), ['a', 'b']);
assert.deepStrictEqual(Object.getOwnPropertySymbols(sandbox), [sym1, sym2]);
const nativeNames = vm.runInNewContext('Object.getOwnPropertyNames(this);');
const ownNames = vm.runInContext('Object.getOwnPropertyNames(this);', ctx);
const restNames = ownNames.filter((name) => !nativeNames.includes(name));
// This should not fail
assert.deepStrictEqual(Array.from(restNames), ['a', 'b']);