public function testItCreatesImages()
 {
     $field = ImageOptionsetField::create('test');
     $field->setSource(['one' => ['title' => 'One', 'image' => dirname(__FILE__) . '/assets/template1.png']]);
     $img = $field->ImageForItem('one');
     $this->assertInstanceOf('Image_Cached', $img);
 }
 static function set_number_per_row($v)
 {
     self::$number_per_row = $v;
 }