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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package controlclient
import (
"io"
"reflect"
"slices"
"testing"
"tailscale.com/types/netmap"
"tailscale.com/types/persist"
)
func fieldsOf(t reflect.Type) (fields []string) {
for i := range t.NumField() {
if name := t.Field(i).Name; name != "_" {
fields = append(fields, name)
}
}
return
}
func TestStatusEqual(t *testing.T) {
// Verify that the Equal method stays in sync with reality
equalHandles := []string{"Err", "URL", "NetMap", "Persist", "state"}
if have := fieldsOf(reflect.TypeFor[Status]()); !reflect.DeepEqual(have, equalHandles) {
t.Errorf("Status.Equal check might be out of sync\nfields: %q\nhandled: %q\n",
have, equalHandles)
}
tests := []struct {
a, b *Status
want bool
}{
{
&Status{},
nil,
false,
},
{
nil,
&Status{},
false,
},
{
nil,
nil,
true,
},
{
&Status{},
&Status{},
true,
},
{
&Status{},
&Status{state: StateAuthenticated},
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)
}
}
}
// tests [canSkipStatus].
func TestCanSkipStatus(t *testing.T) {
st := new(Status)
nm1 := &netmap.NetworkMap{}
nm2 := &netmap.NetworkMap{}
tests := []struct {
name string
s1, s2 *Status
want bool
}{
{
name: "nil-s2",
s1: st,
s2: nil,
want: false,
},
{
name: "equal",
s1: st,
s2: st,
want: false,
},
{
name: "s1-error",
s1: &Status{Err: io.EOF, NetMap: nm1},
s2: &Status{NetMap: nm2},
want: false,
},
{
name: "s1-url",
s1: &Status{URL: "foo", NetMap: nm1},
s2: &Status{NetMap: nm2},
want: false,
},
{
name: "s1-persist-diff",
s1: &Status{Persist: new(persist.Persist).View(), NetMap: nm1},
s2: &Status{NetMap: nm2},
want: false,
},
{
name: "s1-state-diff",
s1: &Status{state: 123, NetMap: nm1},
s2: &Status{NetMap: nm2},
want: false,
},
{
name: "s1-no-netmap1",
s1: &Status{NetMap: nil},
s2: &Status{NetMap: nm2},
want: false,
},
{
name: "s1-no-netmap2",
s1: &Status{NetMap: nm1},
s2: &Status{NetMap: nil},
want: false,
},
{
name: "skip",
s1: &Status{NetMap: nm1},
s2: &Status{NetMap: nm2},
want: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := canSkipStatus(tt.s1, tt.s2); got != tt.want {
t.Errorf("canSkipStatus = %v, want %v", got, tt.want)
}
})
}
want := []string{"Err", "URL", "NetMap", "Persist", "state"}
if f := fieldsOf(reflect.TypeFor[Status]()); !slices.Equal(f, want) {
t.Errorf("Status fields = %q; this code was only written to handle fields %q", f, want)
}
}
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