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|
package dnsutil
import (
"testing"
"time"
"github.com/miekg/dns"
)
func TestMinTTL(t *testing.T) {
var tests = []struct {
answer []dns.RR
ns []dns.RR
extra []dns.RR
ttl time.Duration
}{
{
[]dns.RR{
&dns.A{Hdr: dns.RR_Header{Ttl: 3600}},
&dns.A{Hdr: dns.RR_Header{Ttl: 60}},
},
nil,
nil,
time.Minute,
},
{
[]dns.RR{&dns.A{Hdr: dns.RR_Header{Ttl: 60}}},
[]dns.RR{&dns.NS{Hdr: dns.RR_Header{Ttl: 30}}},
nil,
30 * time.Second,
},
{
[]dns.RR{&dns.A{Hdr: dns.RR_Header{Ttl: 60}}},
[]dns.RR{&dns.NS{Hdr: dns.RR_Header{Ttl: 30}}},
[]dns.RR{&dns.NS{Hdr: dns.RR_Header{Ttl: 10}}},
10 * time.Second,
},
{
[]dns.RR{&dns.A{Hdr: dns.RR_Header{Ttl: 60}}},
nil,
[]dns.RR{
&dns.OPT{Hdr: dns.RR_Header{Ttl: 10, Rrtype: dns.TypeOPT}}, // Ignored
&dns.A{Hdr: dns.RR_Header{Ttl: 30}},
},
30 * time.Second,
},
}
for i, tt := range tests {
msg := dns.Msg{}
msg.Answer = tt.answer
msg.Ns = tt.ns
msg.Extra = tt.extra
if got := MinTTL(&msg); got != tt.ttl {
t.Errorf("#%d: MinTTL(\n%s) = %s, want %s", i, msg.String(), got, tt.ttl)
}
}
}
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