public function testCategoryHierarchies()
 {
     $this->importedTitles = array('Category:Regression test', 'Category:Regression test category', 'Category:Regression test sub category', 'Category:Regression test sub sub category', 'CategoryInstanceAndCategoryHierarchyRegressionTest/WithSubpage', 'CategoryInstanceAndCategoryHierarchyRegressionTest/WithSubpage/WithSubSubpage', 'CategoryInstanceAndCategoryHierarchyRegressionTest');
     $this->titleValidator->assertThatTitleIsKnown($this->importedTitles);
     $title = Title::newFromText('CategoryInstanceAndCategoryHierarchyRegressionTest');
     $expectedCategoryAsWikiValue = array('property' => new DIProperty('_INST'), 'propertyValues' => array('Regression test', 'Regression test category', 'Regression test sub category', 'Regression test sub sub category', 'Category regression test'));
     $semanticDataFinder = new ByPageSemanticDataFinder();
     $semanticDataFinder->setTitle($title)->setStore($this->getStore());
     $semanticDataBatches = array($semanticDataFinder->fetchFromOutput(), $semanticDataFinder->fetchFromStore());
     foreach ($semanticDataBatches as $semanticData) {
         $this->semanticDataValidator->assertThatCategoriesAreSet($expectedCategoryAsWikiValue, $semanticData);
     }
 }