wh.SetExternalKubeClientSet(client)
			wh.SetExternalKubeInformerFactory(informer)

			informer.Start(stopCh)
			informer.WaitForCacheSync(stopCh)

			if err = wh.ValidateInitialization(); err != nil {
				b.Errorf("failed to validate initialization: %v", err)
				return
			}

			var attr admission.Attributes
			if tt.IsCRD {

			wh.SetExternalKubeClientSet(client)
			wh.SetExternalKubeInformerFactory(informer)

			informer.Start(stopCh)
			informer.WaitForCacheSync(stopCh)

			if err = wh.ValidateInitialization(); err != nil {
				b.Errorf("%s: failed to validate initialization: %v", tt.Name, err)
				return
			}

			attr := webhooktesting.NewAttribute(ns, nil, tt.IsDryRun)

			b.ResetTimer()

	p.SetExternalKubeInformerFactory(informerFactory)
	stopCh := make(chan struct{})
	defer close(stopCh)
	informerFactory.Start(stopCh)
	informerFactory.WaitForCacheSync(stopCh)

	if err := p.ValidateInitialization(); err != nil {
		b.Fatal(err)
	}

	corePod := &core.Pod{}
	v1Pod := &corev1.Pod{}
	data, err := ioutil.ReadFile("testdata/pod_restricted.yaml")
	if err != nil {
		b.Fatal(err)
	}

	s.serviceAccountLister = serviceAccountInformer.Lister()
	s.SetReadyFunc(func() bool {
		return serviceAccountInformer.Informer().HasSynced()
	})
}

// ValidateInitialization ensures an authorizer is set.
func (s *Plugin) ValidateInitialization() error {
	if s.client == nil {
		return fmt.Errorf("missing client")
	}
	if s.serviceAccountLister == nil {
		return fmt.Errorf("missing serviceAccountLister")
	}

	a.authorizer = authorizer
}

func (a *gcPermissionsEnforcement) SetRESTMapper(restMapper meta.RESTMapper) {
	a.restMapper = restMapper
}

func (a *gcPermissionsEnforcement) ValidateInitialization() error {
	if a.authorizer == nil {
		return fmt.Errorf("missing authorizer")
	}
	if a.restMapper == nil {
		return fmt.Errorf("missing restMapper")
	}
	return nil

func (l *LimitRanger) SetExternalKubeClientSet(client kubernetes.Interface) {
	l.client = client
}

// ValidateInitialization verifies the LimitRanger object has been properly initialized
func (l *LimitRanger) ValidateInitialization() error {
	if l.lister == nil {
		return fmt.Errorf("missing limitRange lister")
	}
	if l.client == nil {
		return fmt.Errorf("missing client")
	}

	}
	handler := NewPodTolerationsPlugin(pluginConfig)
	pluginInitializer := genericadmissioninitializer.New(c, nil, f, nil, nil, nil, nil)
	pluginInitializer.Initialize(handler)
	err = admission.ValidateInitialization(handler)
	return handler, f, err

	p.podsGetter = f.Core().V1().Pods().Lister()
	p.nodesGetter = f.Core().V1().Nodes().Lister()
}

// ValidateInitialization validates the Plugin was initialized properly
func (p *Plugin) ValidateInitialization() error {
	if p.nodeIdentifier == nil {
		return fmt.Errorf("%s requires a node identifier", PluginName)
	}
	if p.podsGetter == nil {

			expectError:  true,
			runtimeClass: newRuntimeClassForTest(true, nil, false, nil),
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			err := tc.runtimeClass.ValidateInitialization()
			if tc.expectError {
				assert.NotEmpty(t, err)
			} else {
				assert.Empty(t, err)
			}
		})
	}
}

func TestAdmit(t *testing.T) {
	runtimeClassName := "runtimeClassName"

	if err != nil {
		return nil, f, err
	}
	pluginInitializer := kubeadmission.New(c, nil, f, nil, nil, nil, nil)
	pluginInitializer.Initialize(handler)
	err = admission.ValidateInitialization(handler)
	return handler, f, err
}

// newMockClientForTest creates a mock client that returns a client configured for the specified list of namespaces with the specified phase.