tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Map.js (2567B)

      1 /*
      2 * Any copyright is dedicated to the Public Domain.
      3 * http://creativecommons.org/licenses/publicdomain/
      4 */
      5 
      6 load(libdir + "asserts.js");
      7 
      8 var map = new Map();
      9 map.set("self", map);
     10 
     11 var magic = deserialize(serialize(map));
     12 assertEq(magic.get("self"), magic);
     13 assertEq(magic.size, 1);
     14 
     15 map = new Map();
     16 map.set(map, "self");
     17 
     18 magic = deserialize(serialize(map));
     19 assertEq(magic.get(magic), "self");
     20 assertEq(magic.size, 1);
     21 
     22 var values = [
     23    "a", "\uDEFF", undefined, null, -3.5, true, false, NaN, 155, -2
     24 ]
     25 
     26 map = new Map();
     27 for (var value of values) {
     28    map.set(value, value);
     29 }
     30 
     31 magic = deserialize(serialize(map));
     32 var i = 0;
     33 for (value of magic) {
     34    assertEq(value[0], value[1]);
     35    assertEq(value[0], values[i++]);
     36 }
     37 
     38 assertDeepEq([...map.keys()], [...magic.keys()]);
     39 assertDeepEq([...map.values()], [...magic.values()]);
     40 
     41 var obj = {a: 1};
     42 obj.map = new Map();
     43 obj.map.set("obj", obj);
     44 
     45 magic = deserialize(serialize(obj));
     46 
     47 assertEq(magic.map.get("obj"), magic);
     48 assertEq(magic.a, 1);
     49 
     50 map = new Map();
     51 map.set("a", new Number(1));
     52 map.set("b", new String("aaaa"));
     53 map.set("c", new Date(NaN));
     54 
     55 magic = deserialize(serialize(map));
     56 
     57 assertEq(magic.get("a").valueOf(), 1);
     58 assertEq(magic.get("b").valueOf(), "aaaa");
     59 assertEq(magic.get("c").valueOf(), NaN);
     60 
     61 assertDeepEq([...map.keys()], ["a", "b", "c"]);
     62 
     63 map = new Map();
     64 map.set("x", new Map());
     65 map.get("x").set("x", map);
     66 map.get("x").set("b", null);
     67 
     68 magic = deserialize(serialize(map));
     69 
     70 assertEq(magic.get("x").get("x"), magic);
     71 assertEq(magic.get("x").get("b"), null);
     72 
     73 map = new Map()
     74 map.set({a: 1}, "b");
     75 
     76 magic = deserialize(serialize(map));
     77 
     78 obj = [...magic.keys()][0];
     79 assertEq(obj.a, 1);
     80 assertEq(magic.get(obj), "b");
     81 
     82 // Make sure expandos aren't cloned (Bug 1041172)
     83 map = new Map();
     84 map.a = "aaaaa";
     85 magic = deserialize(serialize(map));
     86 assertEq("a" in magic, false);
     87 assertEq(Object.keys(magic).length, 0);
     88 
     89 // Busted [[Prototype]] shouldn't matter
     90 map = new Map();
     91 Object.setPrototypeOf(map, null);
     92 Map.prototype.set.call(map, "self", map);
     93 magic = deserialize(serialize(map));
     94 assertEq(magic.get("self"), magic);
     95 assertEq(magic.size, 1);
     96 
     97 // Can't fuzz around with Map after it is cloned
     98 obj = {
     99    a: new Map(),
    100    get b() {
    101        obj.a.delete("test");
    102        return "invoked";
    103    }
    104 }
    105 obj.a.set("test", "hello");
    106 assertEq(obj.a.has("test"), true);
    107 magic = deserialize(serialize(obj));
    108 assertEq(obj.a.has("test"), false);
    109 assertEq(magic.a.size, 1);
    110 assertEq(magic.a.get("test"), "hello");
    111 assertEq([...magic.a.keys()].toString(), "test");
    112 assertEq(magic.b, "invoked");