// Iterate over topology pairs to get any of the pods being affected by
		// the scheduled pod anti-affinity terms
		for topologyKey, topologyValue := range nodeInfo.Node().Labels {
			tp := topologyPair{key: topologyKey, value: topologyValue}
			if state.existingAntiAffinityCounts[tp] > 0 {
				return false
			}
		}
	}
	return true
}

// structure needs to be revisited.
// Fields are exported for comparison during testing.
type criticalPaths [2]struct {
	// TopologyValue denotes the topology value mapping to topology key.
	TopologyValue string
	// MatchNum denotes the number of matching pods.
	MatchNum int
}

func newCriticalPaths() *criticalPaths {

        "uid": "uidValue",
        "apiVersion": "apiVersionValue",
        "resourceVersion": "resourceVersionValue",
        "fieldPath": "fieldPathValue"
      },
      "topology": {
        "topologyKey": "topologyValue"
      },
      "nodeName": "nodeNameValue",
      "hints": {
        "forZones": [
          {
            "name": "nameValue"
          }
        ]
      }
    }
  ],
  "ports": [
    {

    fieldPath: fieldPathValue
    kind: kindValue
    name: nameValue
    namespace: namespaceValue
    resourceVersion: resourceVersionValue
    uid: uidValue
  topology:
    topologyKey: topologyValue
kind: EndpointSlice
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"

        "uid": "uidValue",
        "apiVersion": "apiVersionValue",
        "resourceVersion": "resourceVersionValue",
        "fieldPath": "fieldPathValue"
      },
      "topology": {
        "topologyKey": "topologyValue"
      },
      "nodeName": "nodeNameValue",
      "hints": {
        "forZones": [
          {
            "name": "nameValue"
          }
        ]
      }
    }
  ],
  "ports": [
    {

    fieldPath: fieldPathValue
    kind: kindValue
    name: nameValue
    namespace: namespaceValue
    resourceVersion: resourceVersionValue
    uid: uidValue
  topology:
    topologyKey: topologyValue
kind: EndpointSlice
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"

        "uid": "uidValue",
        "apiVersion": "apiVersionValue",
        "resourceVersion": "resourceVersionValue",
        "fieldPath": "fieldPathValue"
      },
      "topology": {
        "topologyKey": "topologyValue"
      },
      "nodeName": "nodeNameValue",
      "hints": {
        "forZones": [
          {
            "name": "nameValue"
          }
        ]
      }
    }
  ],
  "ports": [
    {

    fieldPath: fieldPathValue
    kind: kindValue
    name: nameValue
    namespace: namespaceValue
    resourceVersion: resourceVersionValue
    uid: uidValue
  topology:
    topologyKey: topologyValue
kind: EndpointSlice
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"

)

func (p *criticalPaths) sort() {
	if p[0].MatchNum == p[1].MatchNum && p[0].TopologyValue > p[1].TopologyValue {
		// Swap TopologyValue to make them sorted alphabetically.
		p[0].TopologyValue, p[1].TopologyValue = p[1].TopologyValue, p[0].TopologyValue
	}
}

func TestPreFilterState(t *testing.T) {
	tests := []struct {
		name                      string