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// |reftest| skip-if(!xulRuntime.shell)
// -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// Any copyright is dedicated to the Public Domain.
function test() {
var check = clone_object_check;
check({});
check([]);
check({x: 0});
check({x: 0.7, p: "forty-two", y: null, z: undefined});
check(Array.prototype);
check(Object.prototype);
// before and after
var b, a;
// Slow array.
b = [, 1, 2, 3];
b.expando = true;
b[5] = 5;
b[0] = 0;
b[4] = 4;
delete b[2];
check(b);
// Check cloning properties other than basic data properties. (check()
// asserts that the properties of the clone are configurable, writable,
// enumerable data properties.)
b = {};
Object.defineProperties(b, {
x: {enumerable: true, get: function () { return 12479; }},
y: {enumerable: true, configurable: true, writable: false, value: 0},
z: {enumerable: true, configurable: false, writable: true, value: 0},
hidden: {enumerable:false, value: 1334}});
check(b);
// Check corner cases involving property names.
b = {"-1": -1,
0xffffffff: null,
0x100000000: null,
"": 0,
"\xff\x7f\u7fff\uffff\ufeff\ufffe": 1, // random unicode id
"\ud800 \udbff \udc00 \udfff": 2}; // busted surrogate pairs
check(b);
b = [];
b[-1] = -1;
b[0xffffffff] = null;
b[0x100000000] = null;
b[""] = 0;
b["\xff\x7f\u7fff\uffff\ufeff\ufffe"] = 1;
b["\ud800 \udbff \udc00 \udfff"] = 2;
check(b);
// Check that array's .length property is cloned.
b = Array(5);
assertEq(b.length, 5);
a = check(b);
assertEq(a.length, 5);
b = Array(0);
b[1] = "ok";
a = check(b);
assertEq(a.length, 2);
// Check that prototypes are not cloned, per spec.
b = Object.create({x:1});
b.y = 2;
b.z = 3;
check(b);
// Check that cloning does not separate merge points in the tree.
var same = {};
b = {one: same, two: same};
a = check(b);
assertEq(a.one === a.two, true);
b = [same, same];
a = check(b);
assertEq(a[0] === a[1], true);
/*
XXX TODO spin this out into its own test
// This fails quickly with an OOM error. An exception would be nicer.
function Infinitree() {
return { get left() { return new Infinitree; },
get right() { return new Infinitree; }};
}
var threw = false;
try {
serialize(new Infinitree);
} catch (exc) {
threw = true;
}
assertEq(threw, true);
*/
// Clone an array with holes.
check([0, 1, 2, , 4, 5, 6]);
// Array holes should not take up space.
b = [];
b[255] = 1;
check(b);
assertEq(serialize(b).clonebuffer.length < 255, true);
// Check that trailing holes in an array are preserved.
b = [1,2,3,,];
assertEq(b.length, 4);
a = check(b);
assertEq(a.length, 4);
assertEq(a.toString(), "1,2,3,");
b = [1,2,3,,,];
assertEq(b.length, 5);
a = check(b);
assertEq(a.length, 5);
assertEq(a.toString(), "1,2,3,,");
// Self-modifying object.
// This should never read through to b's prototype.
b = Object.create({y: 2},
{x: {enumerable: true,
configurable: true,
get: function() { if (this.hasOwnProperty("y")) delete this.y; return 1; }},
y: {enumerable: true,
configurable: true,
writable: true,
value: 3}});
check(b, "selfModifyingObject");
// Ignore properties with object-ids.
b = {x: 1, y: 2};
Object.defineProperty(b, Array(uri, "x"), {enumerable: true, value: 3});
Object.defineProperty(b, Array(uri, "y"), {enumerable: true, value: 5});
check(b);
}
test();
reportCompare(0, 0, 'ok');