The Tor Browser: js/src/tests/ecma_5/Object/add-property-non-extensible.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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  */

     8 var gTestfile = 'add-property-non-extensible.js';

     9 //-----------------------------------------------------------------------------

    10 var BUGNUMBER = 602144;

    11 var summary =

    12   'Properly method-compile attempted addition of properties to ' +

    13   'non-extensible objects';

    15 print(BUGNUMBER + ": " + summary);

    17 /**************

    18  * BEGIN TEST *

    19  **************/

    21 // No property

    23 var o1 = {};

    24 for (var i = 0; i < 5; i++)

    25   o1.a = 3;

    26 assertEq(o1.a, 3);

    28 var o2 = Object.preventExtensions({});

    29 for (var i = 0; i < 5; i++)

    30   o2.a = 3;

    31 assertEq(Object.getOwnPropertyDescriptor(o2, "a"), undefined);

    33 var o3 = Object.seal({});

    34 for (var i = 0; i < 5; i++)

    35   o3.a = 3;

    36 assertEq(Object.getOwnPropertyDescriptor(o3, "a"), undefined);

    38 var o4 = Object.freeze({});

    39 for (var i = 0; i < 5; i++)

    40   o4.a = 3;

    41 assertEq(Object.getOwnPropertyDescriptor(o4, "a"), undefined);

    44 // Has property

    46 var o5 = { a: 2 };

    47 for (var i = 0; i < 5; i++)

    48   o5.a = 3;

    49 assertEq(o5.a, 3);

    51 var o6 = Object.preventExtensions({ a: 2 });

    52 for (var i = 0; i < 5; i++)

    53   o6.a = 3;

    54 assertEq(o6.a, 3);

    56 var o7 = Object.seal({ a: 2 });

    57 for (var i = 0; i < 5; i++)

    58   o7.a = 3;

    59 assertEq(o7.a, 3);

    61 var o8 = Object.freeze({ a: 2 });

    62 for (var i = 0; i < 5; i++)

    63   o8.a = 3;

    64 assertEq(o8.a, 2);

    67 // Extensible, hit up the prototype chain

    69 var o9 = Object.create({ a: 2 });

    70 for (var i = 0; i < 5; i++)

    71   o9.a = 3;

    72 assertEq(o9.a, 3);

    74 var o10 = Object.create(Object.preventExtensions({ a: 2 }));

    75 for (var i = 0; i < 5; i++)

    76   o10.a = 3;

    77 assertEq(o10.a, 3);

    79 var o11 = Object.create(Object.seal({ a: 2 }));

    80 for (var i = 0; i < 5; i++)

    81   o11.a = 3;

    82 assertEq(o11.a, 3);

    84 var o12 = Object.create(Object.freeze({ a: 2 }));

    85 for (var i = 0; i < 5; i++)

    86   o12.a = 3;

    87 assertEq(Object.getOwnPropertyDescriptor(o12, "a"), undefined);

    90 // Not extensible, hit up the prototype chain

    92 var o13 = Object.preventExtensions(Object.create({ a: 2 }));

    93 for (var i = 0; i < 5; i++)

    94   o13.a = 3;

    95 assertEq(Object.getOwnPropertyDescriptor(o13, "a"), undefined);

    97 var o14 =

    98   Object.preventExtensions(Object.create(Object.preventExtensions({ a: 2 })));

    99 for (var i = 0; i < 5; i++)

   100   o14.a = 3;

   101 assertEq(Object.getOwnPropertyDescriptor(o14, "a"), undefined);

   103 var o15 = Object.preventExtensions(Object.create(Object.seal({ a: 2 })));

   104 for (var i = 0; i < 5; i++)

   105   o15.a = 3;

   106 assertEq(Object.getOwnPropertyDescriptor(o15, "a"), undefined);

   108 var o16 = Object.preventExtensions(Object.create(Object.freeze({ a: 2 })));

   109 for (var i = 0; i < 5; i++)

   110   o16.a = 3;

   111 assertEq(Object.getOwnPropertyDescriptor(o16, "a"), undefined);

   114 /******************************************************************************/

   116 reportCompare(true, true);

   118 print("All tests passed!");

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