public function testSortedIndex()
{
// from js
$numbers = array(10, 20, 30, 40, 50);
$num = 35;
$index = __::sortedIndex($numbers, $num);
$this->assertEquals(3, $index, '35 should be inserted at index 3');
// extra
$this->assertEquals(3, __($numbers)->sortedIndex(35), '35 should be inserted at index 3 with OO-style call');
// docs
$this->assertEquals(3, __::sortedIndex(array(10, 20, 30, 40), 35));
}