coredns/plugin/kubernetes/parse_test.go
Chris O'Haver 4349b6fa63
dont panic on empty SRV segments (#5173)
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
2022-02-09 13:52:53 -05:00

62 lines
1.7 KiB
Go

package kubernetes
import (
"testing"
"github.com/coredns/coredns/request"
"github.com/miekg/dns"
)
func TestParseRequest(t *testing.T) {
tests := []struct {
query string
expected string // output from r.String()
}{
// valid SRV request
{"_http._tcp.webs.mynamespace.svc.inter.webs.tests.", "http.tcp..webs.mynamespace.svc"},
// A request of endpoint
{"1-2-3-4.webs.mynamespace.svc.inter.webs.tests.", "..1-2-3-4.webs.mynamespace.svc"},
// bare zone
{"inter.webs.tests.", "....."},
// bare svc type
{"svc.inter.webs.tests.", "....."},
// bare pod type
{"pod.inter.webs.tests.", "....."},
// SRV request with empty segments
{"..webs.mynamespace.svc.inter.webs.tests.", "...webs.mynamespace.svc"},
}
for i, tc := range tests {
m := new(dns.Msg)
m.SetQuestion(tc.query, dns.TypeA)
state := request.Request{Zone: zone, Req: m}
r, e := parseRequest(state.Name(), state.Zone)
if e != nil {
t.Errorf("Test %d, expected no error, got '%v'.", i, e)
}
rs := r.String()
if rs != tc.expected {
t.Errorf("Test %d, expected (stringified) recordRequest: %s, got %s", i, tc.expected, rs)
}
}
}
func TestParseInvalidRequest(t *testing.T) {
invalid := []string{
"webs.mynamespace.pood.inter.webs.test.", // Request must be for pod or svc subdomain.
"too.long.for.what.I.am.trying.to.pod.inter.webs.tests.", // Too long.
}
for i, query := range invalid {
m := new(dns.Msg)
m.SetQuestion(query, dns.TypeA)
state := request.Request{Zone: zone, Req: m}
if _, e := parseRequest(state.Name(), state.Zone); e == nil {
t.Errorf("Test %d: expected error from %s, got none", i, query)
}
}
}
const zone = "inter.webs.tests."