WallSqlStat whiteStat_1 = provider.getSqlStat(whiteSql_1);
WallSqlStat whiteStat_2 = provider.getSqlStat(whiteSql_2);
Assert.assertSame(whiteStat_1, whiteStat_2);
provider.addFetchRowCount(whiteStat_1, 3);
WallTableStat wallTableStat = provider.getTableStat("t1");
Assert.assertNotNull(wallTableStat);
Assert.assertEquals(3, wallTableStat.getFetchRowCount());
Assert.assertTrue(provider.checkValid(whiteSql_1));
Assert.assertTrue(provider.checkValid(whiteSql_2));
Assert.assertFalse(provider.checkValid(blackSql_1));