Problem with accessor descriptors

I’m running into some strange behavior with Object.defineProperty used with an accessor descriptor in that when it is subsequently checked with Object.getOwnPropertyDescriptor, the get function originally supplied is no longer available (and value is there in its place).

var jsdom = require("jsdom");

var window = jsdom.jsdom().defaultView;
Object.defineProperty(window, 'testVar', {enumerable: true, get: function () {
    return 'test';
}});
console.log('get' in Object.getOwnPropertyDescriptor(window, 'testVar')); // unexpectedly `false`

Available for testing on https://runkit.com/5864b94c65714b0014bfd65a/588fe1aee1800c0014f30c5d

And to confirm the fact that using the property nevertheless works fine in the same Node environment with global or an arbitrary object, see https://runkit.com/5864b94c65714b0014bfd65a/588fe2d39af44e00146a5322

Thanks!

[domenic]

That is probably (but not definitely) https://github.com/nodejs/node/issues/6287, which looks like it might be fixed in the next Node.js release…

[domenic]

Oh, sorry, I got turned around, this is https://github.com/nodejs/node/issues/2734 which is still open…