}
}

func TestMatchTopologySelectorTerms(t *testing.T) {
	type args struct {
		topologySelectorTerms []v1.TopologySelectorTerm
		labels                labels.Set
	}

	tests := []struct {
		name string
		args args
		want bool
	}{
		{
			name: "nil term list",
			args: args{
				topologySelectorTerms: nil,
				labels:                nil,
			},
			want: true,
		},
		{

// nil or empty term matches no objects; while empty term list matches all objects.
func MatchTopologySelectorTerms(topologySelectorTerms []v1.TopologySelectorTerm, lbls labels.Set) bool {
	if len(topologySelectorTerms) == 0 {
		// empty term list matches all objects
		return true
	}

	for _, req := range topologySelectorTerms {
		// nil or empty term selects no objects
		if len(req.MatchLabelExpressions) == 0 {
			continue
		}

### SIG Storage

- The AllowedTopologies field inside StorageClass is now validated against set and map semantics. Specifically, there cannot be duplicate TopologySelectorTerms, MatchLabelExpressions keys, or TopologySelectorLabelRequirement Values. ([#66843](https://github.com/kubernetes/kubernetes/pull/66843), [@verult](https://github.com/verult))