func Test_Controller(t *testing.T) {
	fakeClock := testingclock.NewFakeClock(time.Now())
	tests := []struct {
		name          string
		lease         *coordinationv1.Lease
		expectDeleted bool
	}{
		{
			name: "lease not expired",
			lease: &coordinationv1.Lease{
				ObjectMeta: metav1.ObjectMeta{
					Name:      "kube-apiserver-12345",
					Namespace: metav1.NamespaceSystem,
					Labels: map[string]string{

package k8sresourcelock

import (
	"context"
	"fmt"
	"time"

	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	clientset "k8s.io/client-go/kubernetes"
	coordinationv1 "k8s.io/client-go/kubernetes/typed/coordination/v1"
	corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
	restclient "k8s.io/client-go/rest"
)

const (
	LeaderElectionRecordAnnotationKey = "control-plane.alpha.kubernetes.io/leader"

	certificatesv1 "k8s.io/api/certificates/v1"
	certificatesv1alpha1 "k8s.io/api/certificates/v1alpha1"
	certificatesv1beta1 "k8s.io/api/certificates/v1beta1"
	coordinationv1 "k8s.io/api/coordination/v1"
	coordinationv1beta1 "k8s.io/api/coordination/v1beta1"
	corev1 "k8s.io/api/core/v1"
	discoveryv1 "k8s.io/api/discovery/v1"
	discoveryv1beta1 "k8s.io/api/discovery/v1beta1"
	eventsv1 "k8s.io/api/events/v1"

  "k8s.io/api/batch/v1": "batchv1",
  "k8s.io/api/batch/v1beta1": "batchv1beta1",
  "k8s.io/api/certificates/v1beta1": "certificatesv1beta1",
  "k8s.io/api/coordination/v1": "coordinationv1",
  "k8s.io/api/coordination/v1beta1": "coordinationv1beta1",
  "k8s.io/api/core/v1": "v1",
  "k8s.io/api/discovery/v1alpha1": "discoveryv1alpha1",
  "k8s.io/api/discovery/v1beta1": "discoveryv1beta1",

			Identity: l.name,
			Key:      key,
		},
	}
	if l.perRevision {
		lock = &k8sresourcelock.LeaseLock{
			LeaseMeta: metav1.ObjectMeta{Namespace: l.namespace, Name: l.electionID},
			Client:    l.client.CoordinationV1(),
			// Note: Key is NOT used. This is not implemented in the library for Lease nor needed, since this is already per-revision.
			// See below, where we disable KeyComparison

apiVersion: coordination.k8s.io/v1
kind: Lease
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"
  finalizers:
  - finalizersValue
  generateName: generateNameValue
  generation: 7
  labels:
    labelsKey: labelsValue
  managedFields:
  - apiVersion: apiVersionValue
    fieldsType: fieldsTypeValue

{
  "kind": "Lease",
  "apiVersion": "coordination.k8s.io/v1beta1",
  "metadata": {
    "name": "nameValue",
    "generateName": "generateNameValue",
    "namespace": "namespaceValue",
    "selfLink": "selfLinkValue",
    "uid": "uidValue",
    "resourceVersion": "resourceVersionValue",
    "generation": 7,
    "creationTimestamp": "2008-01-01T01:01:01Z",
    "deletionTimestamp": "2009-01-01T01:01:01Z",
    "deletionGracePeriodSeconds": 10,

apiVersion: coordination.k8s.io/v1
kind: Lease
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"
  finalizers:
  - finalizersValue
  generateName: generateNameValue
  generation: 7
  labels:
    labelsKey: labelsValue
  managedFields:
  - apiVersion: apiVersionValue
    fieldsType: fieldsTypeValue

apiVersion: coordination.k8s.io/v1beta1
kind: Lease
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"
  finalizers:
  - finalizersValue
  generateName: generateNameValue
  generation: 7
  labels:
    labelsKey: labelsValue
  managedFields:
  - apiVersion: apiVersionValue
    fieldsType: fieldsTypeValue

apiVersion: coordination.k8s.io/v1beta1
kind: Lease
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"
  finalizers:
  - finalizersValue
  generateName: generateNameValue
  generation: 7
  labels:
    labelsKey: labelsValue
  managedFields:
  - apiVersion: apiVersionValue
    fieldsType: fieldsTypeValue