blob: cfe65ca063e878e76c5df19bbb15880172991bbe [file] [log] [blame]
function shouldBe(actual, expected) {
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
var array = [0, 1, 2, 3, 4, 5];
Object.defineProperty(Array.prototype, '0', {
get() {
throw new Error('cannot get to 0 getter');
},
set() {
throw new Error('cannot put to 0 setter');
}
});
var result = Array.from(array);
shouldBe(result.length, array.length);
shouldBe(result instanceof Array, true);
for (var i = 0; i < array.length; ++i)
shouldBe(result[i], array[i]);