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coredns/plugin/file/lookup_test.go
xuweiwei 56ee0efa69
plugin/file: add a test case for wildcard RRs do not apply (#5078) 
From RFC 1034 ...

Wildcard RRs do not apply:
[...]

When the query name or a name between the wildcard domain and
the query name is know to exist. For example, if a wildcard
RR has an owner name of "*.X", and the zone also contains RRs
attached to B.X, the wildcards would apply to queries for name
Z.X (presuming there is no explicit information for Z.X), but
not to B.X, A.B.X, or X.

Signed-off-by: xuweiwei <xuweiwei_yewu@cmss.chinamobile.com>
2022-01-08 06:03:28 -08:00

239 lines
6.4 KiB
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package file
import (
"context"
"strings"
"testing"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
)
var dnsTestCases = []test.Case{
{
Qname: "www.miek.nl.", Qtype: dns.TypeA,
Answer: []dns.RR{
test.A("a.miek.nl. 1800 IN A 139.162.196.78"),
test.CNAME("www.miek.nl. 1800 IN CNAME a.miek.nl."),
},
Ns: miekAuth,
},
{
Qname: "www.miek.nl.", Qtype: dns.TypeAAAA,
Answer: []dns.RR{
test.AAAA("a.miek.nl. 1800 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
test.CNAME("www.miek.nl. 1800 IN CNAME a.miek.nl."),
},
Ns: miekAuth,
},
{
Qname: "miek.nl.", Qtype: dns.TypeSOA,
Answer: []dns.RR{
test.SOA("miek.nl. 1800 IN SOA linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
},
Ns: miekAuth,
},
{
Qname: "miek.nl.", Qtype: dns.TypeAAAA,
Answer: []dns.RR{
test.AAAA("miek.nl. 1800 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
},
Ns: miekAuth,
},
{
Qname: "mIeK.NL.", Qtype: dns.TypeAAAA,
Answer: []dns.RR{
test.AAAA("miek.nl. 1800 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
},
Ns: miekAuth,
},
{
Qname: "miek.nl.", Qtype: dns.TypeMX,
Answer: []dns.RR{
test.MX("miek.nl. 1800 IN MX 1 aspmx.l.google.com."),
test.MX("miek.nl. 1800 IN MX 10 aspmx2.googlemail.com."),
test.MX("miek.nl. 1800 IN MX 10 aspmx3.googlemail.com."),
test.MX("miek.nl. 1800 IN MX 5 alt1.aspmx.l.google.com."),
test.MX("miek.nl. 1800 IN MX 5 alt2.aspmx.l.google.com."),
},
Ns: miekAuth,
},
{
Qname: "a.miek.nl.", Qtype: dns.TypeSRV,
Ns: []dns.RR{
test.SOA("miek.nl. 1800 IN SOA linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
},
},
{
Qname: "b.miek.nl.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("miek.nl. 1800 IN SOA linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
},
},
{
Qname: "srv.miek.nl.", Qtype: dns.TypeSRV,
Answer: []dns.RR{
test.SRV("srv.miek.nl. 1800 IN SRV 10 10 8080 a.miek.nl."),
},
Extra: []dns.RR{
test.A("a.miek.nl. 1800 IN A 139.162.196.78"),
test.AAAA("a.miek.nl. 1800 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
},
Ns: miekAuth,
},
{
Qname: "mx.miek.nl.", Qtype: dns.TypeMX,
Answer: []dns.RR{
test.MX("mx.miek.nl. 1800 IN MX 10 a.miek.nl."),
},
Extra: []dns.RR{
test.A("a.miek.nl. 1800 IN A 139.162.196.78"),
test.AAAA("a.miek.nl. 1800 IN AAAA 2a01:7e00::f03c:91ff:fef1:6735"),
},
Ns: miekAuth,
},
{
Qname: "asterisk.x.miek.nl.", Qtype: dns.TypeCNAME,
Answer: []dns.RR{
test.CNAME("asterisk.x.miek.nl. 1800 IN CNAME www.miek.nl."),
},
Ns: miekAuth,
},
{
Qname: "a.b.x.miek.nl.", Qtype: dns.TypeCNAME,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("miek.nl. 1800 IN SOA linode.atoom.net. miek.miek.nl. 1282630057 14400 3600 604800 14400"),
},
},
{
Qname: "asterisk.y.miek.nl.", Qtype: dns.TypeA,
Answer: []dns.RR{
test.A("asterisk.y.miek.nl. 1800 IN A 139.162.196.78"),
},
Ns: miekAuth,
},
{
Qname: "foo.dname.miek.nl.", Qtype: dns.TypeCNAME,
Answer: []dns.RR{
test.DNAME("dname.miek.nl. 1800 IN DNAME x.miek.nl."),
test.CNAME("foo.dname.miek.nl. 1800 IN CNAME foo.x.miek.nl."),
},
Ns: miekAuth,
},
{
Qname: "ext-cname.miek.nl.", Qtype: dns.TypeA,
Answer: []dns.RR{
test.CNAME("ext-cname.miek.nl. 1800 IN CNAME example.com."),
},
Rcode: dns.RcodeServerFailure,
Ns: miekAuth,
},
}
const (
testzone = "miek.nl."
testzone1 = "dnssex.nl."
)
func TestLookup(t *testing.T) {
zone, err := Parse(strings.NewReader(dbMiekNL), testzone, "stdin", 0)
if err != nil {
t.Fatalf("Expected no error when reading zone, got %q", err)
}
fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: zone}, Names: []string{testzone}}}
ctx := context.TODO()
for _, tc := range dnsTestCases {
m := tc.Msg()
rec := dnstest.NewRecorder(&test.ResponseWriter{})
_, err := fm.ServeDNS(ctx, rec, m)
if err != nil {
t.Errorf("Expected no error, got %v", err)
return
}
resp := rec.Msg
if err := test.SortAndCheck(resp, tc); err != nil {
t.Error(err)
}
}
}
func TestLookupNil(t *testing.T) {
fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: nil}, Names: []string{testzone}}}
ctx := context.TODO()
m := dnsTestCases[0].Msg()
rec := dnstest.NewRecorder(&test.ResponseWriter{})
fm.ServeDNS(ctx, rec, m)
}
func BenchmarkFileLookup(b *testing.B) {
zone, err := Parse(strings.NewReader(dbMiekNL), testzone, "stdin", 0)
if err != nil {
return
}
fm := File{Next: test.ErrorHandler(), Zones: Zones{Z: map[string]*Zone{testzone: zone}, Names: []string{testzone}}}
ctx := context.TODO()
rec := dnstest.NewRecorder(&test.ResponseWriter{})
tc := test.Case{
Qname: "www.miek.nl.", Qtype: dns.TypeA,
Answer: []dns.RR{
test.CNAME("www.miek.nl. 1800 IN CNAME a.miek.nl."),
test.A("a.miek.nl. 1800 IN A 139.162.196.78"),
},
}
m := tc.Msg()
b.ResetTimer()
for i := 0; i < b.N; i++ {
fm.ServeDNS(ctx, rec, m)
}
}
const dbMiekNL = `
$TTL 30M
$ORIGIN miek.nl.
@ IN SOA linode.atoom.net. miek.miek.nl. (
1282630057 ; Serial
4H ; Refresh
1H ; Retry
7D ; Expire
4H ) ; Negative Cache TTL
IN NS linode.atoom.net.
IN NS ns-ext.nlnetlabs.nl.
IN NS omval.tednet.nl.
IN NS ext.ns.whyscream.net.
IN MX 1 aspmx.l.google.com.
IN MX 5 alt1.aspmx.l.google.com.
IN MX 5 alt2.aspmx.l.google.com.
IN MX 10 aspmx2.googlemail.com.
IN MX 10 aspmx3.googlemail.com.
IN A 139.162.196.78
IN AAAA 2a01:7e00::f03c:91ff:fef1:6735
a IN A 139.162.196.78
IN AAAA 2a01:7e00::f03c:91ff:fef1:6735
www IN CNAME a
archive IN CNAME a
*.x IN CNAME www
b.x IN CNAME a
*.y IN A 139.162.196.78
dname IN DNAME x
srv IN SRV 10 10 8080 a.miek.nl.
mx IN MX 10 a.miek.nl.
ext-cname IN CNAME example.com.`
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