@Bean
    @ConditionalOnMissingBean(NacosDataChangedInit.class)
    public DataChangedInit nacosDataChangedInit(final ConfigService configService) {
        return new NacosDataChangedInit(configService);
    }
@Test
    public void testNacosDataInit() {
        NacosSyncConfiguration nacosListener = new NacosSyncConfiguration();
        NacosConfigService configService = mock(NacosConfigService.class);
        assertNotNull(nacosListener.nacosDataChangedInit(configService));
    }