mirror of
https://github.com/coredns/coredns.git
synced 2025-11-03 18:53:13 -05:00
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
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package test
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import (
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"testing"
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"github.com/miekg/dns"
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)
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func TestTemplateUpstream(t *testing.T) {
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corefile := `.:0 {
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# CNAME
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template IN ANY cname.example.net. {
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match ".*"
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answer "cname.example.net. 60 IN CNAME target.example.net."
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upstream
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}
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# Target
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template IN A target.example.net. {
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match ".*"
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answer "target.example.net. 60 IN A 1.2.3.4"
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}
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}
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`
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i, udp, _, err := CoreDNSServerAndPorts(corefile)
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if err != nil {
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t.Fatalf("Could not get CoreDNS serving instance: %s", err)
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}
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defer i.Stop()
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// Test that an A query returns a CNAME and an A record
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m := new(dns.Msg)
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m.SetQuestion("cname.example.net.", dns.TypeA)
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m.SetEdns0(4096, true) // need this?
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r, err := dns.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send msg: %s", err)
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}
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if r.Rcode == dns.RcodeServerFailure {
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t.Fatalf("Rcode should not be dns.RcodeServerFailure")
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}
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if len(r.Answer) < 2 {
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t.Fatalf("Expected 2 answers, got %v", len(r.Answer))
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}
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if x := r.Answer[0].(*dns.CNAME).Target; x != "target.example.net." {
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t.Fatalf("Failed to get address for CNAME, expected target.example.net. got %s", x)
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}
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if x := r.Answer[1].(*dns.A).A.String(); x != "1.2.3.4" {
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t.Fatalf("Failed to get address for CNAME, expected 1.2.3.4 got %s", x)
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}
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// Test that a CNAME query only returns a CNAME
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m = new(dns.Msg)
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m.SetQuestion("cname.example.net.", dns.TypeCNAME)
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m.SetEdns0(4096, true) // need this?
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r, err = dns.Exchange(m, udp)
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if err != nil {
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t.Fatalf("Could not send msg: %s", err)
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}
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if r.Rcode == dns.RcodeServerFailure {
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t.Fatalf("Rcode should not be dns.RcodeServerFailure")
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}
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if len(r.Answer) < 1 {
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t.Fatalf("Expected 1 answer, got %v", len(r.Answer))
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}
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if x := r.Answer[0].(*dns.CNAME).Target; x != "target.example.net." {
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t.Fatalf("Failed to get address for CNAME, expected target.example.net. got %s", x)
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}
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}
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