/** @test */
 public function getWhereClauseFromFilterWithoutActiveFilterReturnsExpectedValue()
 {
     $pagerCollectionMock = $this->getMock('Tx_PtExtlist_Domain_Model_Pager_PagerCollection', array('setItemCount'), array(), '', false, false);
     $dataBackend = new Tx_PtExtlist_Domain_DataBackend_MySqlDataBackend_MySqlDataBackend($this->configurationBuilder);
     $dataBackend->_injectQueryInterpreter(new Tx_PtExtlist_Domain_DataBackend_MySqlDataBackend_MySqlInterpreter_MySqlInterpreter());
     $dataBackend->_injectPagerCollection($pagerCollectionMock);
     $filterMock = $this->getFilterMockByCriteria();
     $filterWhereClause = $dataBackend->getWhereClauseFromFilter($filterMock);
     $this->assertTrue($filterWhereClause == '', 'Filter where clause was expected to be "" but was ' . $filterWhereClause);
 }