protected function validJoinHelper($modelClassName, $attributeName, $relatedAttributeName)
{
$searchAttributeData = array();
$searchAttributeData['clauses'] = array(1 => array('attributeName' => $attributeName, 'relatedAttributeName' => $relatedAttributeName, 'operatorType' => OperatorRules::TYPE_IS_NOT_NULL, 'value' => null));
$searchAttributeData['structure'] = '1';
$searchAttributeDataAndClassNames = array(array($modelClassName => $searchAttributeData));
$sql = RedBeanModelsDataProvider::makeUnionSql($searchAttributeDataAndClassNames, null, true);
$result = ZurmoRedBean::GetAll($sql);
$this->assertTrue(is_array($result));
}
