package bind

import "testing"

func TestNSUpdateScriptReplaceSemantics(t *testing.T) {
	got := nsupdateScript("acme.unkin.net", []RecordUpdate{
		{FQDN: "www", Type: "A", TTL: 60, Values: []string{"10.0.0.1", "10.0.0.2"}},
		{FQDN: "old.acme.unkin.net.", Type: "TXT", Delete: true},
	})
	want := `server 127.0.0.1
zone acme.unkin.net.
update delete www. A
update add www. 60 A 10.0.0.1
update add www. 60 A 10.0.0.2
update delete old.acme.unkin.net. TXT
send
`
	if got != want {
		t.Errorf("got:\n%s\nwant:\n%s", got, want)
	}
}

// At the apex BIND ignores an RRset-wide delete of NS, so the apex sync must add
// the new names and delete the old ones record by record, adds first: named
// refuses to leave an apex with no NS record.
func TestNSUpdateScriptPerValueApexNS(t *testing.T) {
	got := nsupdateScript("acme.unkin.net", []RecordUpdate{
		{FQDN: "acme.unkin.net.", Type: "NS", TTL: 60, Values: []string{"acme-ns1.unkin.net."}, PerValue: true},
		{FQDN: "acme.unkin.net.", Type: "NS", Values: []string{"ns1.acme.unkin.net."}, PerValue: true, Delete: true},
		{FQDN: "ns1.acme.unkin.net.", Type: "A", Delete: true},
	})
	want := `server 127.0.0.1
zone acme.unkin.net.
update add acme.unkin.net. 60 NS acme-ns1.unkin.net.
update delete acme.unkin.net. NS ns1.acme.unkin.net.
update delete ns1.acme.unkin.net. A
send
`
	if got != want {
		t.Errorf("got:\n%s\nwant:\n%s", got, want)
	}
}