public function testClearingInvalidCache()
{
$this->setExpectedException('Exception');
Orm::configure('caching', true);
Orm::configure('caching_driver', 'invalid');
try {
ORM::forTable('widget')->where('name', 'Fred')->where('age', 17)->findOne();
} catch (Exception $e) {
Orm::clearCache();
}
}