tailscale/portlist/portlist_test.go

59 lines
1.1 KiB
Go

// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package portlist
import (
"net"
"testing"
"tailscale.com/tstest"
)
func TestGetList(t *testing.T) {
rc := tstest.NewResourceCheck()
defer rc.Assert(t)
pl, err := GetList(nil)
if err != nil {
t.Fatal(err)
}
for i, p := range pl {
t.Logf("[%d] %+v", i, p)
}
t.Logf("As String: %v", pl.String())
}
func TestIgnoreLocallyBoundPorts(t *testing.T) {
rc := tstest.NewResourceCheck()
defer rc.Assert(t)
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Skipf("failed to bind: %v", err)
}
defer ln.Close()
ta := ln.Addr().(*net.TCPAddr)
port := ta.Port
pl, err := GetList(nil)
if err != nil {
t.Fatal(err)
}
for _, p := range pl {
if p.Proto == "tcp" && int(p.Port) == port {
t.Fatal("didn't expect to find test's localhost ephemeral port")
}
}
}
func BenchmarkGetList(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
_, err := GetList(nil)
if err != nil {
b.Fatal(err)
}
}
}