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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package dnssec
import (
"context"
"testing"
"time"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/miekg/dns"
"github.com/stretchr/testify/require"
)
func TestEmptyClient(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
c := MakeDNSClient(nil, time.Second)
rr, rsig, err := c.QueryRRSet(context.Background(), "test", 0)
a.Error(err)
a.Empty(rr)
a.Empty(rsig)
c = MakeDNSClient([]ResolverAddress{}, time.Second)
rr, rsig, err = c.QueryRRSet(context.Background(), "test", 0)
a.Error(err)
a.Empty(rr)
a.Empty(rsig)
c = MakeDNSClient([]ResolverAddress{"example.com"}, time.Millisecond)
rr, rsig, err = c.QueryRRSet(context.Background(), "test", 0)
a.Error(err)
a.Empty(rr)
a.Empty(rsig)
}
type ttr struct {
msg dns.Msg
}
func (t ttr) queryServer(ctx context.Context, server ResolverAddress, msg *dns.Msg, timeout time.Duration) (resp *dns.Msg, err error) {
return &t.msg, nil
}
func TestMockedClient(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
qs := ttr{}
c := dnsClient{[]ResolverAddress{"test"}, time.Second, qs}
rr, rsig, err := c.QueryRRSet(context.Background(), "test", 0)
a.Error(err)
a.Empty(rr)
a.Empty(rsig)
var answer = []dns.RR{&dns.DNSKEY{}, &dns.RRSIG{}}
qs = ttr{msg: dns.Msg{MsgHdr: dns.MsgHdr{Rcode: dns.RcodeServerFailure}, Answer: answer}}
c = dnsClient{[]ResolverAddress{"test"}, time.Second, qs}
rr, rsig, err = c.QueryRRSet(context.Background(), "test", 0)
a.Error(err)
a.Contains(err.Error(), "SERVFAIL")
a.Empty(rr)
a.Empty(rsig)
qs = ttr{msg: dns.Msg{Answer: answer}}
c = dnsClient{[]ResolverAddress{"test"}, time.Second, qs}
rr, rsig, err = c.QueryRRSet(context.Background(), "test", 0)
a.NoError(err)
a.Equal(1, len(rr))
a.Equal(1, len(rsig))
}
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