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643550eabe
Another thing we can test automatically, we sorta settled on using an uppercase letter in in t.Log and t.Fatal calls. Let's just check for this.
89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
// +build etcd
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package etcd
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import (
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"net"
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"strconv"
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"testing"
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"github.com/coredns/coredns/plugin/etcd/msg"
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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/miekg/dns"
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)
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func fakeStubServerExampleNet(t *testing.T) (*dns.Server, string) {
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server, addr, err := test.UDPServer("127.0.0.1:0")
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if err != nil {
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t.Fatalf("Failed to create a UDP server: %s", err)
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}
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// add handler for example.net
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dns.HandleFunc("example.net.", func(w dns.ResponseWriter, r *dns.Msg) {
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m := new(dns.Msg)
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m.SetReply(r)
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m.Answer = []dns.RR{test.A("example.net. 86400 IN A 93.184.216.34")}
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w.WriteMsg(m)
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})
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return server, addr
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}
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func TestStubLookup(t *testing.T) {
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server, addr := fakeStubServerExampleNet(t)
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defer server.Shutdown()
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host, p, _ := net.SplitHostPort(addr)
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port, _ := strconv.Atoi(p)
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exampleNetStub := &msg.Service{Host: host, Port: port, Key: "a.example.net.stub.dns.skydns.test."}
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servicesStub = append(servicesStub, exampleNetStub)
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etc := newEtcdPlugin()
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for _, serv := range servicesStub {
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set(t, etc, serv.Key, 0, serv)
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defer delete(t, etc, serv.Key)
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}
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etc.updateStubZones()
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for _, tc := range dnsTestCasesStub {
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m := tc.Msg()
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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_, err := etc.ServeDNS(ctxt, rec, m)
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if err != nil && m.Question[0].Name == "example.org." {
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// This is OK, we expect this backend to *not* work.
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continue
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}
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if err != nil {
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t.Errorf("expected no error, got %v for %s\n", err, m.Question[0].Name)
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}
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resp := rec.Msg
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if resp == nil {
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// etcd not running?
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continue
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}
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test.SortAndCheck(t, resp, tc)
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}
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}
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var servicesStub = []*msg.Service{
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// Two tests, ask a question that should return servfail because remote it no accessible
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// and one with edns0 option added, that should return refused.
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{Host: "127.0.0.1", Port: 666, Key: "b.example.org.stub.dns.skydns.test."},
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}
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var dnsTestCasesStub = []test.Case{
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{
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Qname: "example.org.", Qtype: dns.TypeA, Rcode: dns.RcodeServerFailure,
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},
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{
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Qname: "example.net.", Qtype: dns.TypeA,
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Answer: []dns.RR{test.A("example.net. 86400 IN A 93.184.216.34")},
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Extra: []dns.RR{test.OPT(4096, false)}, // This will have an EDNS0 section, because *we* added our local stub forward to detect loops.
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},
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}
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