/**
* Returns the Source of the Tree
*
* @return object The tree data source object
*/
public function getTreeSource()
{
$source = $this->dataManager->get($this->getTreeSourceType());
$source->setHierarchyDriver($this);
return $source;
}
/**
* Test expected interface.
*
* @return void
*
* @expectedException Zend\ServiceManager\Exception\RuntimeException
* @expectedExceptionMessage Plugin ArrayObject does not belong to VuFind\Hierarchy\TreeDataSource\AbstractBase
*/
public function testExpectedInterface()
{
$pm = new PluginManager(null);
$pm->validatePlugin(new \ArrayObject());
}