Fix unit test

src/core/core_test.go

@@ -39,22 +39,30 @@ func CreateAndConnectTwo(t testing.TB, verbose bool) (nodeA *Core, nodeB *Core)
 	}
 
 	logger := GetLoggerWithPrefix("", false)
+	logger.EnableLevel("debug")
 
-	if nodeA, err = New(cfgA.Certificate, logger, ListenAddress("tcp://127.0.0.1:0")); err != nil {
+	if nodeA, err = New(cfgA.Certificate, logger); err != nil {
 		t.Fatal(err)
 	}
-	if nodeB, err = New(cfgB.Certificate, logger, ListenAddress("tcp://127.0.0.1:0")); err != nil {
+	if nodeB, err = New(cfgB.Certificate, logger); err != nil {
 		t.Fatal(err)
 	}
 
-	u, err := url.Parse("tcp://" + nodeA.links.tcp.getAddr().String())
+	nodeAListenURL, err := url.Parse("tcp://localhost:0")
 	if err != nil {
 		t.Fatal(err)
 	}
-	err = nodeB.CallPeer(u, "")
+	nodeAListener, err := nodeA.Listen(nodeAListenURL, "")
 	if err != nil {
 		t.Fatal(err)
 	}
+	nodeAURL, err := url.Parse("tcp://" + nodeAListener.Addr().String())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err = nodeB.CallPeer(nodeAURL, ""); err != nil {
+		t.Fatal(err)
+	}
 
 	time.Sleep(100 * time.Millisecond)
 

src/core/link_tcp.go

@@ -104,20 +104,6 @@ func (l *linkTCP) listen(ctx context.Context, url *url.URL, sintf string) (net.L
 	return l.listenconfig.Listen(ctx, "tcp", hostport)
 }
 
-// Returns the address of the listener.
-func (l *linkTCP) getAddr() *net.TCPAddr {
-	// TODO: Fix this, because this will currently only give a single address
-	// to multicast.go, which obviously is not great, but right now multicast.go
-	// doesn't have the ability to send more than one address in a packet either
-	var addr *net.TCPAddr
-	phony.Block(l, func() {
-		for li := range l._listeners {
-			addr = li.listener.Addr().(*net.TCPAddr)
-		}
-	})
-	return addr
-}
-
 func (l *linkTCP) dialerFor(dst *net.TCPAddr, sintf string) (*net.Dialer, error) {
 	if dst.IP.IsLinkLocalUnicast() {
 		if sintf != "" {