public function testSave()
{
$post = $this->object->getRequest()->getPost();
$post->set('background', '#FFFFFF');
$post->set('resize_option', '#auto');
$post->set('mime_list', array('image/gif', 'image/jpeg', 'image/png'));
$post->set('size', array(array('name' => '223x112', 'width' => '223', 'height' => '112'), array('name' => '', 'width' => '', 'height' => '')));
$this->assertNull($this->object->save());
}