js/src/tests/ecma_5/Object/15.2.3.4-02.js

   1 /*
   2  * Any copyright is dedicated to the Public Domain.
   3  * http://creativecommons.org/licenses/publicdomain/
   4  * Contributor:
   5  *   Jeff Walden <jwalden+code@mit.edu>
   6  */
   7
   8 //-----------------------------------------------------------------------------
   9 var BUGNUMBER = 518663;
  10 var summary = 'Object.getOwnPropertyNames: array objects';
  11
  12 print(BUGNUMBER + ": " + summary);
  13
  14 /**************
  15  * BEGIN TEST *
  16  **************/
  17
  18 var a, names, expected;
  19
  20 function arraysEqual(a1, a2)
  21 {
  22   return a1.length === a2.length &&
  23          a1.every(function(v, i) { return v === a2[i]; });
  24 }
  25
  26
  27 a = [0, 1, 2];
  28
  29 names = Object.getOwnPropertyNames(a).sort();
  30 expected = ["0", "1", "2", "length"].sort();
  31
  32 a = [1, , , 7];
  33 a.p = 2;
  34 Object.defineProperty(a, "q", { value: 42, enumerable: false });
  35
  36 names = Object.getOwnPropertyNames(a).sort();
  37 expected = ["0", "3", "p", "q", "length"].sort();
  38 assertEq(arraysEqual(names, expected), true);
  39
  40
  41 a = [];
  42
  43 names = Object.getOwnPropertyNames(a).sort();
  44 expected = ["length"];
  45 assertEq(arraysEqual(names, expected), true);
  46
  47
  48 /******************************************************************************/
  49
  50 reportCompare(true, true);
  51
  52 print("All tests passed!");