public static String getKeyTenant(String dataId, String group, String tenant) {
        return doGetKey(dataId, group, tenant);
    }
@Test
    void testGetKeyTenantByPlusThreeParams() {
        
        // Act
        final String actual = GroupKey.getKeyTenant("3", "1", ",");
        
        // Assert result
        assertEquals("3+1+,", actual);
    }