Flow\Helper::length PHP Méthode

    public static function length($obj = null)
    {
        if (is_string($obj)) {
            return strlen($obj);
        } elseif (is_array($obj) || $obj instanceof \Countable) {
            return count($obj);
        } elseif ($obj instanceof \Traversable) {
            return iterator_count($obj);
        } else {
            return 1;
        }
    }

 public function test_length()
 {
     $this->assertEquals(13, Helper::length('Hello, World!'));
     $this->assertEquals(3, Helper::length(array(1, 2, 3)));
     $this->assertEquals(1, Helper::length(1));
     $this->assertEquals(1, Helper::length(new \StdClass()));
 }