/**
  * Return status of the concept cache for the given concept as an array
  * with key 'status' ('empty': not cached, 'full': cached, 'no': not
  * cachable). If status is not 'no', the array also contains keys 'size'
  * (query size), 'depth' (query depth), 'features' (query features). If
  * status is 'full', the array also contains keys 'date' (timestamp of
  * cache), 'count' (number of results in cache).
  *
  * @since 1.8
  * @param Title|SMWWikiPageValue $concept
  *
  * @return DIConcept|null
  */
 public function getConceptCacheStatus($concept)
 {
     return $this->factory->newSlaveConceptCache()->getStatus($concept);
 }
 public function testNewSlaveConceptCache()
 {
     $instance = new SQLStoreFactory(new SMWSQLStore3());
     $this->assertInstanceOf('SMW\\SQLStore\\ConceptCache', $instance->newSlaveConceptCache());
 }