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ae330a3f55
An apex only zone returns the wrong answer, document this by adding a test. Closes: #4374 Signed-off-by: Miek Gieben <miek@miek.nl>
46 lines
1.6 KiB
Go
46 lines
1.6 KiB
Go
package file
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import (
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"context"
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"strings"
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"testing"
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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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const exampleApexOnly = `$ORIGIN example.com.
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@ IN SOA ns1.example.com. admin.example.com. (
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2005011437 ; Serial
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1200 ; Refresh
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144 ; Retry
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1814400 ; Expire
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2h ) ; Minimum
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@ IN NS ns1.example.com.
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`
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func TestLookupApex(t *testing.T) {
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// this tests a zone with *only* an apex. The behavior here is wrong, we should return NODATA, but we do a NXDOMAIN.
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// Adding this test to document this. Note a zone that doesn't have any data is pretty useless anyway, so rather than
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// fix this with an entirely new branch in lookup.go, just live with it.
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zone, err := Parse(strings.NewReader(exampleApexOnly), "example.com.", "stdin", 0)
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if err != nil {
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t.Fatalf("Expected no error when reading zone, got %q", err)
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}
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fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{"example.com.": zone}, Names: []string{"example.com."}}}
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ctx := context.TODO()
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m := new(dns.Msg)
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m.SetQuestion("example.com.", dns.TypeA)
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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if _, err := fm.ServeDNS(ctx, rec, m); err != nil {
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t.Errorf("Expected no error, got %v", err)
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}
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if rec.Msg.Rcode != dns.RcodeNameError { // Should be RcodeSuccess in a perfect world.
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t.Errorf("Expected rcode %d, got %d", dns.RcodeNameError, rec.Msg.Rcode)
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}
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}
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