public int findActualTableIndex(final String dataSourceName, final String actualTableName) {
        return dataNodeIndexMap.getOrDefault(new DataNode(dataSourceName, actualTableName), -1);
    }
@Test
    void assertNotFindActualTableIndex() {
        ShardingTable actual = new ShardingTable(new ShardingTableRuleConfiguration("LOGIC_TABLE", "ds${0..1}.table_${0..2}"), Arrays.asList("ds0", "ds1"), null);
        assertThat(actual.findActualTableIndex("ds2", "table_2"), is(-1));
    }