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80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package magicsock
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import (
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"fmt"
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"net"
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"strings"
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"testing"
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"time"
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)
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func TestListen(t *testing.T) {
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epCh := make(chan string, 16)
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epFunc := func(endpoints []string) {
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for _, ep := range endpoints {
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epCh <- ep
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}
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}
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// TODO(crawshaw): break test dependency on the network
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// using "gortc.io/stun" (like stunner_test.go).
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stunServers := DefaultSTUN
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port := pickPort(t)
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conn, err := Listen(Options{
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Port: port,
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STUN: stunServers,
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EndpointsFunc: epFunc,
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})
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if err != nil {
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t.Fatal(err)
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}
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defer conn.Close()
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go func() {
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var pkt [64 << 10]byte
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for {
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_, _, _, err := conn.ReceiveIPv4(pkt[:])
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if err != nil {
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return
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}
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}
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}()
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timeout := time.After(10 * time.Second)
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var endpoints []string
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suffix := fmt.Sprintf(":%d", port)
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collectEndpoints:
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for {
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select {
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case ep := <-epCh:
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endpoints = append(endpoints, ep)
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if strings.HasSuffix(ep, suffix) {
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break collectEndpoints
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}
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case <-timeout:
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t.Fatalf("timeout with endpoints: %v", endpoints)
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}
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}
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}
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func pickPort(t *testing.T) uint16 {
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t.Helper()
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conn, err := net.ListenPacket("udp4", ":0")
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if err != nil {
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t.Fatal(err)
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}
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defer conn.Close()
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return uint16(conn.LocalAddr().(*net.UDPAddr).Port)
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}
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func TestDerpIPConstant(t *testing.T) {
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if derpMagicIPStr != derpMagicIP.String() {
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t.Errorf("str %q != IP %v", derpMagicIPStr, derpMagicIP)
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}
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}
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