Function testUDP4Proxy

cmd/docker-proxy/network_proxy_linux_test.go:344–370

(t *testing.T, hostPort int)

}

func testUDP4Proxy(t *testing.T, hostPort int) {
	t.Helper()
	backend := NewEchoServer(t, "udp", "127.0.0.1:0", EchoServerOptions{})
	defer backend.Close()
	backend.Run()
	var listener *os.File
	frontendAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 0}
	if hostPort == 0 {
		listener, frontendAddr = udpListener(t, "udp4", &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 0})
	} else {
		frontendAddr.Port = hostPort
	}
	backendAddr := backend.LocalAddr().(*net.UDPAddr)
	config := ProxyConfig{
		Proto:         "udp",
		HostIP:        frontendAddr.IP,
		HostPort:      frontendAddr.Port,
		ContainerIP:   backendAddr.IP,
		ContainerPort: backendAddr.Port,
		ListenSock:    listener,
	}
	proxy, err := newProxy(config)
	if err != nil {
		t.Fatal(err)
	}
	testProxyAt(t, "udp", proxy, frontendAddr.String(), false)
}

func TestUDP4Proxy(t *testing.T) {
	testUDP4Proxy(t, 0)