dispatcher test

transport/internet/udp/dispatcher_test.go

@@ -0,0 +1,65 @@
+package udp_test
+
+import (
+	"context"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"v2ray.com/core/common/buf"
+	v2net "v2ray.com/core/common/net"
+	"v2ray.com/core/testing/assert"
+	. "v2ray.com/core/transport/internet/udp"
+	"v2ray.com/core/transport/ray"
+)
+
+type TestDispatcher struct {
+	OnDispatch func(ctx context.Context, dest v2net.Destination) (ray.InboundRay, error)
+}
+
+func (d *TestDispatcher) Dispatch(ctx context.Context, dest v2net.Destination) (ray.InboundRay, error) {
+	return d.OnDispatch(ctx, dest)
+}
+
+func TestSameDestinationDispatching(t *testing.T) {
+	assert := assert.On(t)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	link := ray.NewRay(ctx)
+	go func() {
+		for {
+			data, err := link.OutboundInput().Read()
+			if err != nil {
+				break
+			}
+			err = link.OutboundOutput().Write(data)
+			assert.Error(err).IsNil()
+		}
+	}()
+
+	var count uint32
+	td := &TestDispatcher{
+		OnDispatch: func(ctx context.Context, dest v2net.Destination) (ray.InboundRay, error) {
+			atomic.AddUint32(&count, 1)
+			return link, nil
+		},
+	}
+	dest := v2net.UDPDestination(v2net.LocalHostIP, 53)
+
+	b := buf.New()
+	b.AppendBytes('a', 'b', 'c', 'd')
+	dispatcher := NewDispatcher(td)
+	var msgCount uint32
+	dispatcher.Dispatch(ctx, dest, b, func(payload *buf.Buffer) {
+		atomic.AddUint32(&msgCount, 1)
+	})
+	for i := 0; i < 5; i++ {
+		dispatcher.Dispatch(ctx, dest, b, func(payload *buf.Buffer) {})
+	}
+
+	time.Sleep(time.Second)
+	cancel()
+
+	assert.Uint32(count).Equals(1)
+	assert.Uint32(msgCount).Equals(6)
+}