public function testXListInstancesAction()
{
$content = $this->request('/tools/aws/rds/instances/xListInstances/?cloudLocation=us-east-1');
$this->assertResponseDataHasKeys(['Engine', 'DBInstanceStatus', 'Endpoint', 'Port', 'DBName', 'MasterUsername', 'DBInstanceClass', 'AllocatedStorage', 'InstanceCreateTime', 'AvailabilityZone', 'isReplica'], $content);
}