def METHOD_NAME(self):
    policy = self.load_policy(
        {
            "name": "filter-metrics",
            "resource": "tencentcloud.cbs",
            "filters": [{
                "type": "metrics",
                "name": "DiskReadTraffic",
                "statistics": "Average",
                "days": 3,
                "op": "less-than",
                "value": 1,
                "missing-value": 0,
                "period": 3600
            }]
        }
    )
    resources = policy.run()
    assert len(resources) == 14