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tailscale/wgengine/router/router_test.go

155 lines
2.8 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package router
import (
"net/netip"
"reflect"
"testing"
"tailscale.com/types/preftype"
)
func mustCIDRs(ss ...string) []netip.Prefix {
var ret []netip.Prefix
for _, s := range ss {
ret = append(ret, netip.MustParsePrefix(s))
}
return ret
}
func TestConfigEqual(t *testing.T) {
testedFields := []string{
"LocalAddrs", "Routes", "LocalRoutes", "NewMTU",
"SubnetRoutes", "SNATSubnetRoutes", "NetfilterMode",
}
configType := reflect.TypeOf(Config{})
configFields := []string{}
for i := 0; i < configType.NumField(); i++ {
configFields = append(configFields, configType.Field(i).Name)
}
if !reflect.DeepEqual(configFields, testedFields) {
t.Errorf("Config.Equal check might be out of sync\nfields: %q\nhandled: %q\n",
configFields, testedFields)
}
nets := func(strs ...string) (ns []netip.Prefix) {
for _, s := range strs {
n, err := netip.ParsePrefix(s)
if err != nil {
panic(err)
}
ns = append(ns, n)
}
return ns
}
tests := []struct {
a, b *Config
want bool
}{
{
nil,
nil,
true,
},
{
&Config{},
nil,
false,
},
{
nil,
&Config{},
false,
},
{
&Config{},
&Config{},
true,
},
{
&Config{LocalAddrs: nets("100.1.27.82/32")},
&Config{LocalAddrs: nets("100.2.19.82/32")},
false,
},
{
&Config{LocalAddrs: nets("100.1.27.82/32")},
&Config{LocalAddrs: nets("100.1.27.82/32")},
true,
},
{
&Config{Routes: nets("100.1.27.0/24")},
&Config{Routes: nets("100.2.19.0/24")},
false,
},
{
&Config{Routes: nets("100.2.19.0/24")},
&Config{Routes: nets("100.2.19.0/24")},
true,
},
{
&Config{LocalRoutes: nets("100.1.27.0/24")},
&Config{LocalRoutes: nets("100.2.19.0/24")},
false,
},
{
&Config{LocalRoutes: nets("100.1.27.0/24")},
&Config{LocalRoutes: nets("100.1.27.0/24")},
true,
},
{
&Config{SubnetRoutes: nets("100.1.27.0/24")},
&Config{SubnetRoutes: nets("100.2.19.0/24")},
false,
},
{
&Config{SubnetRoutes: nets("100.1.27.0/24")},
&Config{SubnetRoutes: nets("100.1.27.0/24")},
true,
},
{
&Config{SNATSubnetRoutes: false},
&Config{SNATSubnetRoutes: true},
false,
},
{
&Config{SNATSubnetRoutes: false},
&Config{SNATSubnetRoutes: false},
true,
},
{
&Config{NetfilterMode: preftype.NetfilterOff},
&Config{NetfilterMode: preftype.NetfilterNoDivert},
false,
},
{
&Config{NetfilterMode: preftype.NetfilterNoDivert},
&Config{NetfilterMode: preftype.NetfilterNoDivert},
true,
},
{
&Config{NewMTU: 0},
&Config{NewMTU: 0},
true,
},
{
&Config{NewMTU: 1280},
&Config{NewMTU: 0},
false,
},
}
for i, tt := range tests {
got := tt.a.Equal(tt.b)
if got != tt.want {
t.Errorf("%d. Equal = %v; want %v", i, got, tt.want)
}
}
}