@Test
public void testGetNamingServices() throws NacosException {

	NamingService namingService = nacosServiceFactory.createNamingService(properties);
	NamingService namingService2 = nacosServiceFactory
			.createNamingService(properties);
	Assert.assertTrue(namingService == namingService2);
	Assert.assertEquals(1, nacosServiceFactory.getNamingServices().size());
	Assert.assertEquals(namingService,
			nacosServiceFactory.getNamingServices().iterator().next());
}