Files
coredns/plugin/loop/setup_test.go
Ville Vesilehto 31e285994b plugin/loop: avoid panic on invalid server block (#7568)
Ignore invalid ServerBlockKeys in loop plugin that fail
normalization. Retain the default “.” zone instead of
indexing into an empty slice. This prevents an
index-out-of-range panic triggered by malformed
inputs such as "unix://".

Added tests to validate and increase test coverage.

Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
2025-09-21 22:44:36 -07:00

49 lines
1.1 KiB
Go

package loop
import (
"testing"
"github.com/coredns/caddy"
)
func TestSetup(t *testing.T) {
c := caddy.NewTestController("dns", `loop`)
if err := setup(c); err != nil {
t.Fatalf("Expected no errors, but got: %v", err)
}
c = caddy.NewTestController("dns", `loop argument`)
if err := setup(c); err == nil {
t.Fatal("Expected errors, but got none")
}
}
func TestParseServerBlockKeys(t *testing.T) {
tests := []struct {
name string
key string
want string
wantOk bool
}{
{name: "valid domain", key: "example.org", want: "example.org.", wantOk: true},
{name: "invalid scheme", key: "unix://", want: ".", wantOk: true},
{name: "empty", key: "", want: ".", wantOk: true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
c := caddy.NewTestController("dns", `loop`)
if tt.key != "" {
c.ServerBlockKeys = []string{tt.key}
}
l, err := parse(c)
if (err == nil) != tt.wantOk {
t.Fatalf("parse err=%v, wantOk=%v", err, tt.wantOk)
}
if l.zone != tt.want {
t.Fatalf("zone=%q, want %q", l.zone, tt.want)
}
})
}
}