array-iterator-surfaces-1.js

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// Superficial tests of the Array.prototype[@@iterator] builtin function and its workalikes.

load(libdir + "iteration.js");

var constructors = [Array, String, Uint8Array, Uint8ClampedArray];

for (var c of constructors) {

    assertEq(c.prototype[Symbol.iterator].length, 0);

    var loc = (c === Array || c === String)

            ? c.prototype

            : Object.getPrototypeOf(c.prototype);

    var desc = Object.getOwnPropertyDescriptor(loc, Symbol.iterator);

    assertEq(desc.configurable, true);

    assertEq(desc.enumerable, false);

    assertEq(desc.writable, true);