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package kubernetes
import (
"context"
"testing"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
)
var dnsEmptyServiceTestCases = []test.Case{
// A Service
{
Qname: "svcempty.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 5 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 5"),
},
},
// CNAME to external
{
Qname: "external.testns.svc.cluster.local.", Qtype: dns.TypeCNAME,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.CNAME("external.testns.svc.cluster.local. 5 IN CNAME ext.interwebs.test."),
},
},
}
func TestServeDNSEmptyService(t *testing.T) {
k := New([]string{"cluster.local."})
k.APIConn = &APIConnServeTest{}
k.opts.ignoreEmptyService = true
k.Next = test.NextHandler(dns.RcodeSuccess, nil)
ctx := context.TODO()
for i, tc := range dnsEmptyServiceTestCases {
r := tc.Msg()
w := dnstest.NewRecorder(&test.ResponseWriter{})
_, err := k.ServeDNS(ctx, w, r)
if err != tc.Error {
t.Errorf("Test %d expected no error, got %v", i, err)
return
}
if tc.Error != nil {
continue
}
resp := w.Msg
if resp == nil {
t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
}
// Before sorting, make sure that CNAMES do not appear after their target records
if err := test.CNAMEOrder(resp); err != nil {
t.Error(err)
}
if err := test.SortAndCheck(resp, tc); err != nil {
t.Error(err)
}
}
}
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