15.2.3.6-miscellaneous.js

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// Any copyright is dedicated to the Public Domain.

// http://creativecommons.org/licenses/publicdomain/

//-----------------------------------------------------------------------------

var BUGNUMBER = 430133;

var summary = 'ES5 Object.defineProperty(O, P, Attributes)';

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

var o = [];

Object.defineProperty(o, 0, { value: 17 });

var desc = Object.getOwnPropertyDescriptor(o, 0);

assertEq(desc !== undefined, true);

assertEq(desc.value, 17);

assertEq(desc.enumerable, false);

assertEq(desc.configurable, false);

assertEq(desc.writable, false);

desc = Object.getOwnPropertyDescriptor(o, "length");

assertEq(desc !== undefined, true);

assertEq(desc.enumerable, false);

assertEq(desc.configurable, false);

assertEq(desc.writable, true);

assertEq(desc.value, 1);

assertEq(o.length, 1);

Object.defineProperty(o, "foobar",

                      { value: 42, enumerable: false, configurable: true });

assertEq(o.foobar, 42);

desc = Object.getOwnPropertyDescriptor(o, "foobar");

assertEq(desc !== undefined, true);

assertEq(desc.value, 42);

assertEq(desc.configurable, true);

assertEq(desc.enumerable, false);

assertEq(desc.writable, false);

var called = false;

o = { set x(a) { called = true; } };

Object.defineProperty(o, "x", { get: function() { return "get"; } });

desc = Object.getOwnPropertyDescriptor(o, "x");

assertEq("set" in desc, true);

assertEq("get" in desc, true);

assertEq(called, false);

o.x = 13;

assertEq(called, true);

var toSource = Object.prototype.toSource || function() { };

toSource.call(o); // a test for this not crashing

var called = false;

var o =

  Object.defineProperty({}, "foo",

                        { get: function() { return 17; },

                          set: function(v) { called = true; } });

assertEq(o.foo, 17);

o.foo = 42;

assertEq(called, true);

/*

 * XXX need tests for Object.defineProperty(array, "length", { ... }) when we

 * support it!

*/

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("All tests passed!");