mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-01 22:15:51 +00:00
54e33b511a
This was meant to be part of 53a2f63658 earlier
but I guess I failed at git.
Updates #2436
Updates tailscale/corp#2250
Updates tailscale/corp#2238
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
91 lines
2.1 KiB
Go
91 lines
2.1 KiB
Go
// Copyright (c) 2021 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 resolver
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"inet.af/netaddr"
|
|
)
|
|
|
|
func (rr resolverAndDelay) String() string {
|
|
return fmt.Sprintf("%v+%v", rr.ipp, rr.startDelay)
|
|
}
|
|
|
|
func TestResolversWithDelays(t *testing.T) {
|
|
// query
|
|
q := func(ss ...string) (ipps []netaddr.IPPort) {
|
|
for _, s := range ss {
|
|
ipps = append(ipps, netaddr.MustParseIPPort(s))
|
|
}
|
|
return
|
|
}
|
|
// output
|
|
o := func(ss ...string) (rr []resolverAndDelay) {
|
|
for _, s := range ss {
|
|
var d time.Duration
|
|
if i := strings.Index(s, "+"); i != -1 {
|
|
var err error
|
|
d, err = time.ParseDuration(s[i+1:])
|
|
if err != nil {
|
|
panic(fmt.Sprintf("parsing duration in %q: %v", s, err))
|
|
}
|
|
s = s[:i]
|
|
}
|
|
rr = append(rr, resolverAndDelay{
|
|
ipp: netaddr.MustParseIPPort(s),
|
|
startDelay: d,
|
|
})
|
|
}
|
|
return
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
in []netaddr.IPPort
|
|
want []resolverAndDelay
|
|
}{
|
|
{
|
|
name: "unknown-no-delays",
|
|
in: q("1.2.3.4:53", "2.3.4.5:53"),
|
|
want: o("1.2.3.4:53", "2.3.4.5:53"),
|
|
},
|
|
{
|
|
name: "google-all-ipv4",
|
|
in: q("8.8.8.8:53", "8.8.4.4:53"),
|
|
want: o("8.8.8.8:53", "8.8.4.4:53+200ms"),
|
|
},
|
|
{
|
|
name: "google-only-ipv6",
|
|
in: q("[2001:4860:4860::8888]:53", "[2001:4860:4860::8844]:53"),
|
|
want: o("[2001:4860:4860::8888]:53", "[2001:4860:4860::8844]:53+200ms"),
|
|
},
|
|
{
|
|
name: "google-all-four",
|
|
in: q("8.8.8.8:53", "8.8.4.4:53", "[2001:4860:4860::8888]:53", "[2001:4860:4860::8844]:53"),
|
|
want: o("8.8.8.8:53", "8.8.4.4:53+200ms", "[2001:4860:4860::8888]:53+2.5s", "[2001:4860:4860::8844]:53+2.7s"),
|
|
},
|
|
{
|
|
name: "quad9-one-v4-one-v6",
|
|
in: q("9.9.9.9:53", "[2620:fe::fe]:53"),
|
|
want: o("9.9.9.9:53", "[2620:fe::fe]:53+200ms"),
|
|
},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
got := resolversWithDelays(tt.in)
|
|
if !reflect.DeepEqual(got, tt.want) {
|
|
t.Errorf("got %v; want %v", got, tt.want)
|
|
}
|
|
})
|
|
}
|
|
|
|
}
|