NamespaceSelector:       &metav1.LabelSelector{},
				ObjectSelector:          &metav1.LabelSelector{},
				AdmissionReviewVersions: []string{"v1beta1"},
			}, {
				Name:              "shouldNotBeCalled",
				ClientConfig:      ccfgSVC("shouldNotBeCalled"),
				NamespaceSelector: &metav1.LabelSelector{},
				ObjectSelector: &metav1.LabelSelector{
					MatchLabels: map[string]string{

			expectMatches: false,
		},
		{
			name: "wildcard rule, match as requested",
			criteria: &v1.MatchResources{
				NamespaceSelector: &metav1.LabelSelector{},
				ObjectSelector:    &metav1.LabelSelector{},
				ResourceRules: []v1.NamedRuleWithOperations{{
					RuleWithOperations: v1.RuleWithOperations{
						Operations: []v1.OperationType{"*"},

					PodSelector: metav1.LabelSelector{
						MatchLabels: map[string]string{"a": "b"},
					},
					Ingress: []networkingv1.NetworkPolicyIngressRule{
						{
							From: []networkingv1.NetworkPolicyPeer{
								{
									PodSelector: &metav1.LabelSelector{
										MatchLabels: map[string]string{"c": "d"},
									},
									NamespaceSelector: &metav1.LabelSelector{

				Spec: extensionsv1beta1.NetworkPolicySpec{
					PodSelector: metav1.LabelSelector{
						MatchLabels: map[string]string{"a": "b"},
					},
				},
			},
			expected: &extensionsv1beta1.NetworkPolicy{
				Spec: extensionsv1beta1.NetworkPolicySpec{
					PodSelector: metav1.LabelSelector{
						MatchLabels: map[string]string{"a": "b"},
					},

						{
							TopologyKey:   `foo`,
							LabelSelector: &metav1.LabelSelector{},
						},
						{
							TopologyKey:   `beta.kubernetes.io/arch`,
							LabelSelector: &metav1.LabelSelector{},
						},
						{
							TopologyKey:   `beta.kubernetes.io/os`,
							LabelSelector: &metav1.LabelSelector{},
						},
						{

			expectCall:  false,
			matchResult: true,
		},
		{
			name: "invalid kind lookup",
			webhook: &v1.ValidatingWebhook{
				NamespaceSelector: &metav1.LabelSelector{},
				ObjectSelector:    &metav1.LabelSelector{},
				MatchPolicy:       &equivalentMatch,
				Rules: []v1.RuleWithOperations{{
					Operations: []v1.OperationType{"*"},

				{
					LabelSelector: &metav1.LabelSelector{
						MatchExpressions: []metav1.LabelSelectorRequirement{
							{
								Key:      "security",
								Operator: metav1.LabelSelectorOpIn,
								Values:   []string{"S1", "value2"},
							},
						},
					},
					TopologyKey: "region",
				}, {
					LabelSelector: &metav1.LabelSelector{

				return fmt.Errorf("failed to create k8s client: %v", err)
			}

			var podName, ns string
			if labelSelector != "" {
				pl, err := kubeClient.PodsForSelector(context.TODO(), ctx.NamespaceOrDefault(ctx.Namespace()), labelSelector)
				if err != nil {
					return fmt.Errorf("not able to locate pod with selector %s: %v", labelSelector, err)
				}

				if len(pl.Items) < 1 {
					return errors.New("no pods found")
				}

	return &s.NodeSelector
}

// LabelSelectorWrapper wraps a LabelSelector inside.
type LabelSelectorWrapper struct{ metav1.LabelSelector }

// MakeLabelSelector creates a LabelSelector wrapper.
func MakeLabelSelector() *LabelSelectorWrapper {
	return &LabelSelectorWrapper{metav1.LabelSelector{}}
}

// Label applies a {k,v} pair to the inner LabelSelector.
func (s *LabelSelectorWrapper) Label(k, v string) *LabelSelectorWrapper {

}

func TestLabelSelectorMatchExpression(t *testing.T) {
	testCases := []struct {
		name            string
		labelSelector   *metav1.LabelSelector
		wantErrorNumber int
		validateErrs    func(t *testing.T, errs field.ErrorList)
	}{{
		name: "Valid LabelSelector",
		labelSelector: &metav1.LabelSelector{
			MatchExpressions: []metav1.LabelSelectorRequirement{{
				Key:      "key",
				Operator: metav1.LabelSelectorOpIn,