enabled: false,
			oldPodSpec: &api.PodSpec{
				TopologySpreadConstraints: []api.TopologySpreadConstraint{},
			},
			podSpec: &api.PodSpec{
				TopologySpreadConstraints: []api.TopologySpreadConstraint{},
			},
			wantPodSpec: &api.PodSpec{
				TopologySpreadConstraints: []api.TopologySpreadConstraint{},
			},
		},
		{
			name:    "feature disabled, only old pod use NodeAffinityPolicy field",

	return framework.QueueSkip, nil
}

// getConstraints extracts topologySpreadConstraint(s) from the Pod spec.
// If the Pod doesn't have any topologySpreadConstraint, it returns default constraints.
func (pl *PodTopologySpread) getConstraints(pod *v1.Pod) ([]topologySpreadConstraint, error) {
	var constraints []topologySpreadConstraint
	var err error
	if len(pod.Spec.TopologySpreadConstraints) > 0 {

	cases := map[string]struct {
		args     *config.PodTopologySpreadArgs
		wantErrs field.ErrorList
	}{
		"valid config": {
			args: &config.PodTopologySpreadArgs{
				DefaultConstraints: []v1.TopologySpreadConstraint{
					{
						MaxSkew:           1,
						TopologyKey:       "node",
						WhenUnsatisfiable: v1.DoNotSchedule,
					},
					{
						MaxSkew:           2,
						TopologyKey:       "zone",

			in: &configv1.PodTopologySpreadArgs{
				DefaultConstraints: []v1.TopologySpreadConstraint{
					{
						TopologyKey:       "planet",
						WhenUnsatisfiable: v1.DoNotSchedule,
						MaxSkew:           2,
					},
				},
			},
			want: &configv1.PodTopologySpreadArgs{
				DefaultConstraints: []v1.TopologySpreadConstraint{
					{
						TopologyKey:       "planet",

						{Preference: api.NodeSelectorTerm{MatchExpressions: []api.NodeSelectorRequirement{{Key: `foo`}}}},
					},
				},
			},
			TopologySpreadConstraints: []api.TopologySpreadConstraint{
				{TopologyKey: `foo`},
			},
			HostAliases: []api.HostAlias{
				{IP: "1.1.1.1"},
				{IP: "2.2.2.2"},
			},
			ImagePullSecrets: []api.LocalObjectReference{
				{Name: "secret1"},

		ignore           = api.NodeInclusionPolicyIgnore
		emptyConstraints = []api.TopologySpreadConstraint{
			{
				WhenUnsatisfiable: api.DoNotSchedule,
				TopologyKey:       "kubernetes.io/hostname",
				MaxSkew:           1,
			},
		}
		defaultConstraints = []api.TopologySpreadConstraint{
			{
				NodeAffinityPolicy: &honor,
				NodeTaintsPolicy:   &ignore,

	}); err != nil {
		return err
	}
	if err := s.AddGeneratedConversionFunc((*v1.TopologySpreadConstraint)(nil), (*core.TopologySpreadConstraint)(nil), func(a, b interface{}, scope conversion.Scope) error {
		return Convert_v1_TopologySpreadConstraint_To_core_TopologySpreadConstraint(a.(*v1.TopologySpreadConstraint), b.(*core.TopologySpreadConstraint), scope)
	}); err != nil {
		return err
	}

	return p
}

// SpreadConstraint constructs a TopologySpreadConstraint object and injects
// into the inner pod.
func (p *PodWrapper) SpreadConstraint(maxSkew int, tpKey string, mode v1.UnsatisfiableConstraintAction, selector *metav1.LabelSelector, minDomains *int32, nodeAffinityPolicy, nodeTaintsPolicy *v1.NodeInclusionPolicy, matchLabelKeys []string) *PodWrapper {
	c := v1.TopologySpreadConstraint{
		MaxSkew:            int32(maxSkew),

	testCases := []struct {
		name            string
		constraints     []core.TopologySpreadConstraint
		wantFieldErrors field.ErrorList
		opts            PodValidationOptions
	}{{
		name: "all required fields ok",
		constraints: []core.TopologySpreadConstraint{{
			MaxSkew:           1,
			TopologyKey:       "k8s.io/zone",
			WhenUnsatisfiable: core.DoNotSchedule,

		copy(*out, *in)
	}
	return
}

// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TopologySpreadConstraint.
func (in *TopologySpreadConstraint) DeepCopy() *TopologySpreadConstraint {
	if in == nil {
		return nil
	}
	out := new(TopologySpreadConstraint)
	in.DeepCopyInto(out)
	return out
}