73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
package nsid
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import (
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"context"
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"encoding/hex"
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"testing"
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"github.com/coredns/coredns/plugin"
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"github.com/coredns/coredns/plugin/pkg/dnstest"
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"github.com/coredns/coredns/plugin/test"
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"github.com/coredns/coredns/plugin/whoami"
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"github.com/miekg/dns"
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)
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func TestNsid(t *testing.T) {
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em := Nsid{
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Data: "NSID",
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}
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tests := []struct {
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next plugin.Handler
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qname string
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qtype uint16
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expectedCode int
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expectedReply string
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expectedErr error
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}{
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{
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next: whoami.Whoami{},
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qname: ".",
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expectedCode: dns.RcodeSuccess,
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expectedReply: hex.EncodeToString([]byte("NSID")),
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expectedErr: nil,
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},
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}
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ctx := context.TODO()
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for i, tc := range tests {
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req := new(dns.Msg)
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if tc.qtype == 0 {
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tc.qtype = dns.TypeA
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}
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req.SetQuestion(dns.Fqdn(tc.qname), tc.qtype)
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req.Question[0].Qclass = dns.ClassINET
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req.SetEdns0(4096, false)
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option := req.Extra[0].(*dns.OPT)
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option.Option = append(option.Option, &dns.EDNS0_NSID{Code: dns.EDNS0NSID, Nsid: ""})
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em.Next = tc.next
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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code, err := em.ServeDNS(ctx, rec, req)
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if err != tc.expectedErr {
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t.Errorf("Test %d: Expected error %v, but got %v", i, tc.expectedErr, err)
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}
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if code != int(tc.expectedCode) {
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t.Errorf("Test %d: Expected status code %d, but got %d", i, tc.expectedCode, code)
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}
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if tc.expectedReply != "" {
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for _, extra := range rec.Msg.Extra {
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if option, ok := extra.(*dns.OPT); ok {
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e := option.Option[0].(*dns.EDNS0_NSID)
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if e.Nsid != tc.expectedReply {
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t.Errorf("Test %d: Expected answer %s, but got %s", i, tc.expectedReply, e.Nsid)
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}
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}
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}
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}
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}
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}
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