add subscriber testing

http_test.go

@@ -1,11 +1,17 @@
 package http
 
 import (
+	"context"
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"sync"
 	"testing"
+	"time"
 
+	api "github.com/micro/go-api/proto"
+	micro "github.com/micro/go-micro"
+	"github.com/micro/go-micro/client"
 	"github.com/micro/go-micro/registry"
 	"github.com/micro/go-micro/registry/mock"
 	"github.com/micro/go-micro/server"
@@ -87,3 +93,63 @@ func TestHTTPServer(t *testing.T) {
 		t.Fatal(err)
 	}
 }
+
+func TestSubscriber(t *testing.T) {
+	reg := mock.NewRegistry()
+
+	// create server
+	srv := NewServer(server.Registry(reg))
+
+	// register handler
+	if err := srv.Handle(srv.NewHandler(http.NewServeMux())); err != nil {
+		t.Fatal(err)
+	}
+
+	// start server
+	if err := srv.Start(); err != nil {
+		t.Fatal(err)
+	}
+
+	topic := "topic"
+	ctx, cancel := context.WithTimeout(context.TODO(), time.Millisecond*10)
+	sub := srv.NewSubscriber(topic, func(context.Context, *api.Event) error {
+		cancel()
+		return nil
+	})
+	// subscribe
+	if err := srv.Subscribe(sub); err != nil {
+		t.Fatal(err)
+	}
+
+	// register server
+	if err := srv.Register(); err != nil {
+		t.Fatal(err)
+	}
+
+	// publish
+	wg := sync.WaitGroup{}
+	go func() {
+		wg.Add(1)
+		defer wg.Done()
+		mClient := client.NewClient(
+			client.Registry(reg),
+			client.Broker(srv.Options().Broker),
+		)
+		pub := micro.NewPublisher(topic, mClient)
+		if err := pub.Publish(ctx, &api.Event{}); err != nil {
+			t.Fatal(err)
+		}
+	}()
+	wg.Wait()
+
+	// wait cancel
+	<-ctx.Done()
+	if ctx.Err() != context.Canceled {
+		t.Fatalf("subscriber is not working, err: %s", ctx.Err())
+	}
+
+	// stop server
+	if err := srv.Stop(); err != nil {
+		t.Fatal(err)
+	}
+}