tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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verifyProperty-restore-accessor.js (935B)

      1 // Copyright (C) 2017 Leo Balter. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: >
      6  verifyProperty allows restoring the original accessor descriptor
      7 includes: [propertyHelper.js]
      8 ---*/
      9 
     10 var obj;
     11 var prop = "prop";
     12 var desc = { enumerable: true, configurable: true, get() { return 42; }, set() {} };
     13 
     14 obj = {};
     15 Object.defineProperty(obj, prop, desc);
     16 
     17 verifyProperty(obj, prop, desc);
     18 
     19 assert.sameValue(
     20  Object.prototype.hasOwnProperty.call(obj, prop),
     21  false
     22 );
     23 
     24 obj = {};
     25 Object.defineProperty(obj, prop, desc);
     26 
     27 verifyProperty(obj, prop, desc, { restore: true });
     28 
     29 assert.sameValue(
     30  Object.prototype.hasOwnProperty.call(obj, prop),
     31  true
     32 );
     33 assert.sameValue(obj[prop], 42);
     34 assert.sameValue(
     35  Object.getOwnPropertyDescriptor(obj, prop).get,
     36  desc.get
     37 );
     38 
     39 assert.sameValue(
     40  Object.getOwnPropertyDescriptor(obj, prop).set,
     41  desc.set
     42 );
     43 
     44 reportCompare(0, 0);