The Tor Browser: js/src/jit-test/tests/collections/Map-surfaces-1.js@6474c204b198

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

     1 // Map surfaces

     3 load(libdir + "iteration.js");

     5 var desc = Object.getOwnPropertyDescriptor(this, "Map");

     6 assertEq(desc.enumerable, false);

     7 assertEq(desc.configurable, true);

     8 assertEq(desc.writable, true);

    10 assertEq(typeof Map, 'function');

    11 assertEq(Object.keys(Map).length, 0);

    12 assertEq(Map.length, 0);

    13 assertEq(Map.name, "Map");

    15 assertEq(Object.getPrototypeOf(Map.prototype), Object.prototype);

    16 assertEq(Object.prototype.toString.call(Map.prototype), "[object Map]");

    17 assertEq(Object.prototype.toString.call(new Map), "[object Map]");

    18 assertEq(Object.prototype.toString.call(Map()), "[object Map]");

    19 assertEq(Object.keys(Map.prototype).join(), "");

    20 assertEq(Map.prototype.constructor, Map);

    22 function checkMethod(name, arity) {

    23     var desc = Object.getOwnPropertyDescriptor(Map.prototype, name);

    24     assertEq(desc.enumerable, false);

    25     assertEq(desc.configurable, true);

    26     assertEq(desc.writable, true);

    27     assertEq(typeof desc.value, 'function');

    28     assertEq(desc.value.name, name);

    29     assertEq(desc.value.length, arity);

    30 }

    32 checkMethod("get", 1);

    33 checkMethod("has", 1);

    34 checkMethod("set", 2);

    35 checkMethod("delete", 1);

    36 checkMethod("keys", 0);

    37 checkMethod("values", 0);

    38 checkMethod("entries", 0);

    40 var desc = Object.getOwnPropertyDescriptor(Map.prototype, "size");

    41 assertEq(desc.enumerable, false);

    42 assertEq(desc.configurable, true);

    43 assertEq(typeof desc.get, 'function');

    44 assertEq(desc.get.length, 0);

    45 assertEq(desc.set, undefined);

    46 checkMethod("clear", 0);

    48 // Map.prototype[@@iterator] and .entries are the same function object.

    49 assertEq(Map.prototype[std_iterator], Map.prototype.entries);

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