fix flaky test

p2p/net/swarm/swarm_dial_test.go

@@ -12,17 +12,23 @@ import (
 	"github.com/libp2p/go-libp2p/core/network"
 	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/libp2p/go-libp2p/core/peerstore"
+	"github.com/libp2p/go-libp2p/core/sec"
+	"github.com/libp2p/go-libp2p/core/sec/insecure"
 	"github.com/libp2p/go-libp2p/core/test"
 	"github.com/libp2p/go-libp2p/p2p/host/eventbus"
 	"github.com/libp2p/go-libp2p/p2p/host/peerstore/pstoremem"
+	"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
+	tptu "github.com/libp2p/go-libp2p/p2p/net/upgrader"
 	quic "github.com/libp2p/go-libp2p/p2p/transport/quic"
 	"github.com/libp2p/go-libp2p/p2p/transport/quicreuse"
+
 	"github.com/libp2p/go-libp2p/p2p/transport/tcp"
 	"github.com/libp2p/go-libp2p/p2p/transport/websocket"
 	webtransport "github.com/libp2p/go-libp2p/p2p/transport/webtransport"
 
 	ma "github.com/multiformats/go-multiaddr"
 	madns "github.com/multiformats/go-multiaddr-dns"
+	manet "github.com/multiformats/go-multiaddr/net"
 	"github.com/stretchr/testify/require"
 )
 
@@ -130,8 +136,11 @@ func newTestSwarmWithResolver(t *testing.T, resolver *madns.Resolver) *Swarm {
 		s.Close()
 	})
 
+	st := insecure.NewWithIdentity(insecure.ID, id, priv)
+	u, err := tptu.New([]sec.SecureTransport{st}, []tptu.StreamMuxer{{ID: yamux.ID, Muxer: yamux.DefaultTransport}}, nil, nil, nil)
+	require.NoError(t, err)
 	// Add a tcp transport so that we know we can dial a tcp multiaddr and we don't filter it out.
-	tpt, err := tcp.NewTCPTransport(nil, &network.NullResourceManager{})
+	tpt, err := tcp.NewTCPTransport(u, &network.NullResourceManager{})
 	require.NoError(t, err)
 	err = s.AddTransport(tpt)
 	require.NoError(t, err)
@@ -285,8 +294,22 @@ func TestBlackHoledAddrBlocked(t *testing.T) {
 	minDials := 5
 	s.udpBHD = newBlackHoleDetector(func(addr ma.Multiaddr) bool { return true }, "mock", 10, minDials, 5, 0.5)
 
-	// reject all dials to the address will be refused as there is no listener
-	addr := ma.StringCast("/ip4/127.0.0.1/tcp/1234")
+	// all dials to the address will be rejected
+	addr := ma.StringCast("/ip4/127.0.0.1/tcp/0")
+	list, err := manet.Listen(addr)
+	if err != nil {
+		t.Error(err)
+	}
+	addr = list.Multiaddr()
+	go func() {
+		for {
+			conn, err := list.Accept()
+			if err != nil {
+				break
+			}
+			conn.Close()
+		}
+	}()
 
 	p, err := test.RandPeerID()
 	if err != nil {
@@ -295,18 +318,14 @@ func TestBlackHoledAddrBlocked(t *testing.T) {
 	s.Peerstore().AddAddr(p, addr, peerstore.PermanentAddrTTL)
 	for i := 0; i < minDials; i++ {
 		s.backf.Clear(p)
-		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-		conn, err := s.dialPeer(ctx, p)
-		cancel()
+		conn, err := s.dialPeer(context.Background(), p)
 		if err == nil || conn != nil {
 			t.Fatalf("expected dial to fail")
 		}
 	}
 
 	s.backf.Clear(p)
-	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
-	conn, err := s.dialPeer(ctx, p)
-	cancel()
+	conn, err := s.dialPeer(context.Background(), p)
 	if conn != nil || !errors.Is(err, ErrNoGoodAddresses) {
 		t.Fatalf("expected dial to be blocked: %s", err)
 	}