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// Flags: --frozen-intrinsics
'use strict';
require('../common');
const assert = require('assert');
assert.throws(
() => Object.defineProperty = 'asdf',
TypeError
);
// Ensure we can extend Console
{
class ExtendedConsole extends console.Console {}
const s = new ExtendedConsole(process.stdout);
const logs = [];
s.log = (msg) => logs.push(msg);
s.log('custom');
s.log = undefined;
assert.strictEqual(s.log, undefined);
assert.strictEqual(logs.length, 1);
assert.strictEqual(logs[0], 'custom');
}
// Ensure we can write override Object prototype properties on instances
{
const o = {};
o.toString = () => 'Custom toString';
assert.strictEqual(o + 'asdf', 'Custom toStringasdf');
assert.strictEqual(Object.getOwnPropertyDescriptor(o, 'toString').enumerable,
true);
}
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