Map.js - mozsearch

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

load(libdir + "asserts.js");

var map = new Map();

map.set("self", map);

var magic = deserialize(serialize(map));

assertEq(magic.get("self"), magic);

assertEq(magic.size, 1);

map = new Map();

map.set(map, "self");

magic = deserialize(serialize(map));

assertEq(magic.get(magic), "self");

assertEq(magic.size, 1);

var values = [

    "a", "\uDEFF", undefined, null, -3.5, true, false, NaN, 155, -2

map = new Map();

for (var value of values) {

    map.set(value, value);

magic = deserialize(serialize(map));

var i = 0;

for (value of magic) {

    assertEq(value[0], value[1]);

    assertEq(value[0], values[i++]);

assertDeepEq([...map.keys()], [...magic.keys()]);

assertDeepEq([...map.values()], [...magic.values()]);

var obj = {a: 1};

obj.map = new Map();

obj.map.set("obj", obj);

magic = deserialize(serialize(obj));

assertEq(magic.map.get("obj"), magic);

assertEq(magic.a, 1);

map = new Map();

map.set("a", new Number(1));

map.set("b", new String("aaaa"));

map.set("c", new Date(NaN));

magic = deserialize(serialize(map));

assertEq(magic.get("a").valueOf(), 1);

assertEq(magic.get("b").valueOf(), "aaaa");

assertEq(magic.get("c").valueOf(), NaN);

assertDeepEq([...map.keys()], ["a", "b", "c"]);

map = new Map();

map.set("x", new Map());

map.get("x").set("x", map);

map.get("x").set("b", null);

magic = deserialize(serialize(map));

assertEq(magic.get("x").get("x"), magic);

assertEq(magic.get("x").get("b"), null);

map = new Map()

map.set({a: 1}, "b");

magic = deserialize(serialize(map));

obj = [...magic.keys()][0];

assertEq(obj.a, 1);

assertEq(magic.get(obj), "b");

// Make sure expandos aren't cloned (Bug 1041172)

map = new Map();

map.a = "aaaaa";

magic = deserialize(serialize(map));

assertEq("a" in magic, false);

assertEq(Object.keys(magic).length, 0);

// Busted [[Prototype]] shouldn't matter

map = new Map();

Object.setPrototypeOf(map, null);

Map.prototype.set.call(map, "self", map);

magic = deserialize(serialize(map));

assertEq(magic.get("self"), magic);

assertEq(magic.size, 1);

// Can't fuzz around with Map after it is cloned

obj = {

    a: new Map(),

    get b() {

        obj.a.delete("test");

        return "invoked";

obj.a.set("test", "hello");

assertEq(obj.a.has("test"), true);

magic = deserialize(serialize(obj));

assertEq(obj.a.has("test"), false);

assertEq(magic.a.size, 1);

assertEq(magic.a.get("test"), "hello");

assertEq([...magic.a.keys()].toString(), "test");

assertEq(magic.b, "invoked");