diff --git a/modules/common/webhook/rfc_test.go b/modules/common/webhook/rfc_test.go
new file mode 100644
index 00000000..30779a02
--- /dev/null
+++ b/modules/common/webhook/rfc_test.go
@@ -0,0 +1,60 @@
+/*
+Copyright 2024 Red Hat
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package webhook
+
+import (
+	"testing"
+
+	"k8s.io/apimachinery/pkg/util/validation/field"
+
+	. "github.com/onsi/gomega"
+)
+
+func TestValidateDNS1123Label(t *testing.T) {
+	tests := []struct {
+		name string
+		keys []string
+		want bool
+	}{
+		{
+			name: "req is higher then min",
+			keys: []string{"123"},
+			want: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			g := NewWithT(t)
+
+			p := field.NewPath("foo")
+
+			errs := ValidateDNS1123Label(p, tt.keys)
+
+			if tt.wantWarn {
+				g.Expect(warns).To(HaveLen(1))
+			} else {
+				g.Expect(warns).To(BeEmpty())
+			}
+			if tt.wantErr {
+				g.Expect(errs).To(HaveLen(1))
+			} else {
+				g.Expect(errs).To(BeEmpty())
+			}
+		})
+	}
+}