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package chaos
import (
"context"
"testing"
"github.com/coredns/coredns/plugin"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
)
func TestChaos(t *testing.T) {
em := Chaos{
Version: version,
Authors: []string{"Miek Gieben"},
}
tests := []struct {
next plugin.Handler
qname string
qtype uint16
expectedCode int
expectedReply string
expectedErr error
}{
{
next: test.NextHandler(dns.RcodeSuccess, nil),
qname: "version.bind",
expectedCode: dns.RcodeSuccess,
expectedReply: version,
expectedErr: nil,
},
{
next: test.NextHandler(dns.RcodeSuccess, nil),
qname: "authors.bind",
expectedCode: dns.RcodeSuccess,
expectedReply: "Miek Gieben",
expectedErr: nil,
},
{
next: test.NextHandler(dns.RcodeSuccess, nil),
qname: "authors.bind",
qtype: dns.TypeSRV,
expectedCode: dns.RcodeSuccess,
expectedErr: nil,
},
}
ctx := context.TODO()
for i, tc := range tests {
req := new(dns.Msg)
if tc.qtype == 0 {
tc.qtype = dns.TypeTXT
}
req.SetQuestion(dns.Fqdn(tc.qname), tc.qtype)
req.Question[0].Qclass = dns.ClassCHAOS
em.Next = tc.next
rec := dnstest.NewRecorder(&test.ResponseWriter{})
code, err := em.ServeDNS(ctx, rec, req)
if err != tc.expectedErr {
t.Errorf("Test %d: Expected error %v, but got %v", i, tc.expectedErr, err)
}
if code != int(tc.expectedCode) {
t.Errorf("Test %d: Expected status code %d, but got %d", i, tc.expectedCode, code)
}
if tc.expectedReply != "" {
answer := rec.Msg.Answer[0].(*dns.TXT).Txt[0]
if answer != tc.expectedReply {
t.Errorf("Test %d: Expected answer %s, but got %s", i, tc.expectedReply, answer)
}
}
}
}
const version = "CoreDNS-001"
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