'Get cluster space available, should pass.'

def test_update_volume_stats(self):

    actual = self.driver.get_volume_stats(True)
    self.assertEqual('HGST', actual['vendor_name'])
    self.assertEqual('hgst', actual['storage_protocol'])
    self.assertEqual(90, actual['total_capacity_gb'])
    self.assertEqual(87, actual['free_capacity_gb'])
    self.assertEqual(0, actual['reserved_percentage'])
