/**
  * @covers Alchemy\Phrasea\SearchEngine\SearchEngineOptions
  */
 public function testSerialize()
 {
     $options = new SearchEngineOptions(self::$DI['app']);
     $options->onCollections([self::$DI['collection']]);
     $options->allowBusinessFieldsOn([self::$DI['collection']]);
     foreach (self::$DI['collection']->get_databox()->get_meta_structure() as $field) {
         $options->setFields([$field]);
         $options->setDateFields([$field]);
         break;
     }
     $min_date = new \DateTime('-5 days');
     $max_date = new \DateTime('+5 days');
     $options->setMinDate(\DateTime::createFromFormat(DATE_ATOM, $min_date->format(DATE_ATOM)));
     $options->setMaxDate(\DateTime::createFromFormat(DATE_ATOM, $max_date->format(DATE_ATOM)));
     $serialized = $options->serialize();
     $this->assertEquals($options, SearchEngineOptions::hydrate(self::$DI['app'], $serialized));
 }