add a test framework for grpc

weed/mq/broker/broker_test.go

@@ -0,0 +1,47 @@
+package broker
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/test/bufconn"
+)
+
+var lis *bufconn.Listener
+
+func init() {
+	lis = bufconn.Listen(1024 * 1024)
+	server := grpc.NewServer()
+	mq_pb.RegisterSeaweedMessagingServer(server, &MessageQueueBroker{})
+	go func() {
+		if err := server.Serve(lis); err != nil {
+			fmt.Printf("Server exited with error: %v", err)
+		}
+	}()
+}
+
+func bufDialer(string, time.Duration) (net.Conn, error) {
+	return lis.Dial()
+}
+
+func TestMessageQueueBroker_ListTopics(t *testing.T) {
+	conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithDialer(bufDialer), grpc.WithInsecure())
+	if err != nil {
+		t.Fatalf("Failed to dial bufnet: %v", err)
+	}
+	defer conn.Close()
+
+	client := mq_pb.NewSeaweedMessagingClient(conn)
+	request := &mq_pb.ListTopicsRequest{}
+
+	_, err = client.ListTopics(context.Background(), request)
+	if err == nil {
+		t.Fatalf("Add failed: %v", err)
+	}
+
+}