fix

registry/nacos/service_discovery_test.go

@@ -118,9 +118,6 @@ func TestNacosServiceDiscovery_CRUD(t *testing.T) {
 	err = serviceDiscovery.Register(instance)
 	assert.Nil(t, err)
 
-	//sometimes nacos may be failed to push update of instance,
-	//so it need 10s to pull, we sleep 10 second to make sure instance has been update
-	time.Sleep(11 * time.Second)
 	page := serviceDiscovery.GetHealthyInstancesByPage(serviceName, 0, 10, true)
 	assert.NotNil(t, page)
 	assert.Equal(t, 0, page.GetOffset())