topologySelectorTerms: []v1.TopologySelectorTerm{
					{
						MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{},
					},
				},
				labels: nil,
			},
			want: false,
		},
		{
			name: "label matches MatchLabelExpressions terms",
			args: args{
				topologySelectorTerms: []v1.TopologySelectorTerm{
					{
						MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
							Key:    "label_1",

		return true
	}

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

		labelSelector, err := TopologySelectorRequirementsAsSelector(req.MatchLabelExpressions)
		if err != nil || !labelSelector.Matches(lbls) {
			continue
		}

		return true
	}

	return false
}

		// TODO (verult) consider improving runtime
		for _, t := range rawTopologies {
			if helper.Semantic.DeepEqual(exprMap, t) {
				allErrs = append(allErrs, field.Duplicate(idxPath.Child("matchLabelExpressions"), ""))
			}
		}

		rawTopologies = append(rawTopologies, exprMap)
	}

	return allErrs
}

// ValidateCSINode validates a CSINode.