layer1: add namespace event bridge step 18

pkg/utils/namespace_manager_model_test.go

@@ -3,6 +3,8 @@ package utils
 import (
 	"testing"
 	"time"
+
+	corev1 "k8s.io/api/core/v1"
 )
 
 func TestNamespaceRecordClone(t *testing.T) {
@@ -86,3 +88,22 @@ func TestManagedNamespaceEvent(t *testing.T) {
 		t.Fatalf("expected tenant-a event name")
 	}
 }
+
+func TestNamespaceEventFromNamespace(t *testing.T) {
+	namespace := &corev1.Namespace{}
+	namespace.Name = "tenant-a"
+	namespace.Labels = map[string]string{ManagedNamespaceLabelKey: ManagedNamespaceLabelValue}
+
+	event := NamespaceEventFromNamespace(NamespaceEventAdd, namespace, NamespaceSourceWatcher, time.Now().UTC())
+	if event.Name != "tenant-a" {
+		t.Fatalf("expected tenant-a event name")
+	}
+	if event.Labels[ManagedNamespaceLabelKey] != ManagedNamespaceLabelValue {
+		t.Fatalf("expected namespace labels to be copied into event")
+	}
+
+	namespace.Labels[ManagedNamespaceLabelKey] = "false"
+	if event.Labels[ManagedNamespaceLabelKey] != ManagedNamespaceLabelValue {
+		t.Fatalf("expected event labels to stay detached from original namespace")
+	}
+}