git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 module.exports = function (t, a) {
   4         var o, o1, o2, x, y = {}, z = {};
   5         o = { inherited: true };
   6         o1 = Object.create(o);
   7         o1.visible = z;
   8         o1.nonremovable = 'raz';
   9         Object.defineProperty(o1, 'hidden', { value: 'hidden' });
  10
  11         o2 = Object.defineProperties({}, { nonremovable: { value: y } });
  12         o2.other = 'other';
  13
  14         try { t(o2, o1); } catch (ignore) {}
  15
  16         a(o2.visible, z, "Enumerable");
  17         a(o1.hidden, 'hidden', "Not Enumerable");
  18         a(o2.propertyIsEnumerable('visible'), true, "Enumerable is enumerable");
  19         a(o2.propertyIsEnumerable('hidden'), false,
  20                 "Not enumerable is not enumerable");
  21
  22         a(o2.hasOwnProperty('inherited'), false, "Extend only own");
  23         a(o2.inherited, undefined, "Extend ony own: value");
  24
  25         a(o2.nonremovable, y, "Do not overwrite non configurable");
  26         a(o2.other, 'other', "Own kept");
  27
  28         x = {};
  29         t(x, o2);
  30         try { t(x, o1); } catch (ignore) {}
  31
  32         a(x.visible, z, "Enumerable");
  33         a(x.hidden, 'hidden', "Not Enumerable");
  34         a(x.propertyIsEnumerable('visible'), true, "Enumerable is enumerable");
  35         a(x.propertyIsEnumerable('hidden'), false,
  36                 "Not enumerable is not enumerable");
  37
  38         a(x.hasOwnProperty('inherited'), false, "Extend only own");
  39         a(x.inherited, undefined, "Extend ony own: value");
  40
  41         a(x.nonremovable, y, "Ignored non configurable");
  42         a(x.other, 'other', "Other");
  43
  44         x.visible = 3;
  45         a(x.visible, 3, "Writable is writable");
  46
  47         x = {};
  48         t(x, o1);
  49         a.throws(function () {
  50                 x.hidden = 3;
  51         }, "Not writable is not writable");
  52
  53         x = {};
  54         t(x, o1);
  55         delete x.visible;
  56         a.ok(!x.hasOwnProperty('visible'), "Configurable is configurable");
  57
  58         x = {};
  59         t(x, o1);
  60         a.throws(function () {
  61                 delete x.hidden;
  62         }, "Not configurable is not configurable");
  63
  64         x = Object.defineProperty({}, 'foo',
  65                 { configurable: false, writable: true, enumerable: false, value: 'bar' });
  66
  67         try { t(x, { foo: 'lorem' }); } catch (ignore) {}
  68         a(x.foo, 'bar', "Writable, not enumerable");
  69 };