newCache := make([]*watchCacheEvent, capacity)
	if capacity < w.capacity {
		// adjust startIndex if cache capacity shrink.
		w.startIndex = w.endIndex - capacity
	}
	for i := w.startIndex; i < w.endIndex; i++ {
		newCache[i%capacity] = w.cache[i%w.capacity]
	}
	w.cache = newCache
	metrics.RecordsWatchCacheCapacityChange(w.groupResource.String(), w.capacity, capacity)
	w.capacity = capacity
}

			wantInsufficientResources: []InsufficientResource{
				{ResourceName: v1.ResourceCPU, Reason: getErrReason(v1.ResourceCPU), Requested: 1, Used: 10, Capacity: 10},
				{ResourceName: v1.ResourceMemory, Reason: getErrReason(v1.ResourceMemory), Requested: 1, Used: 20, Capacity: 20},
			},
		},
		{
			pod: newResourceInitPod(newResourcePod(framework.Resource{MilliCPU: 1, Memory: 1}), framework.Resource{MilliCPU: 3, Memory: 1}),

		// Should not be set unless there are different handlers for the same HandlerID.
		Subroute string

		// OutCapacity is the output capacity. If <= 0 capacity will be 1.
		OutCapacity int

		// InCapacity is the output capacity.
		// If == 0 no input is expected
		InCapacity int
	}
)

type subHandlerID [32]byte

func makeSubHandlerID(id HandlerID, subRoute string) subHandlerID {

	// We explicitly have a parameter for reason to avoid formatting a message on the fly
	// for common resources, which is expensive for cluster autoscaler simulations.
	Reason    string
	Requested int64
	Used      int64
	Capacity  int64
}

// Fits checks if node have enough resources to host the pod.
func Fits(pod *v1.Pod, nodeInfo *framework.NodeInfo) []InsufficientResource {

	// CSIStorageCapacityAdd is the event when a CSI storage capacity is added in the cluster.
	CSIStorageCapacityAdd = framework.ClusterEvent{Resource: framework.CSIStorageCapacity, ActionType: framework.Add, Label: "CSIStorageCapacityAdd"}
	// CSIStorageCapacityUpdate is the event when a CSI storage capacity is updated in the cluster.

			cap:  8,
		},
		{
			name: "with existing capacity above max",
			args: args{initialCapacity: 12, maxCapacity: 10, sizes: []int{8, 4}},
			cap:  12,
		},
		{
			name: "with existing capacity below max",
			args: args{initialCapacity: 5, maxCapacity: 10, sizes: []int{8, 4}},
			cap:  8,
		},
		{
			name: "with existing capacity and length above max",

| `minio_cluster_capacity_usable_free_bytes`   | Total free usable capacity online in the cluster.              |
| `minio_cluster_capacity_usable_total_bytes`  | Total usable capacity online in the cluster.                   |
| `minio_cluster_objects_size_distribution`    | Distribution of object sizes across a cluster                  |

	row := metav1.TableRow{
		Object: runtime.RawExtension{Object: obj},
	}

	capacity := "<unset>"
	if obj.Capacity != nil {
		capacity = obj.Capacity.String()
	}

	row.Cells = append(row.Cells, obj.Name, obj.StorageClassName, capacity)
	return []metav1.TableRow{row}, nil
}

	defer testKubelet.Cleanup()
	kl := testKubelet.kubelet
	nodes := []*v1.Node{
		{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
			Status: v1.NodeStatus{Capacity: v1.ResourceList{}, Allocatable: v1.ResourceList{
				v1.ResourceCPU:    *resource.NewMilliQuantity(10, resource.DecimalSI),
				v1.ResourceMemory: *resource.NewQuantity(100, resource.BinarySI),

				ObjectMeta: metav1.ObjectMeta{
					Name: "test1",
				},
				Spec: api.PersistentVolumeSpec{
					ClaimRef:    &claimRef,
					AccessModes: []api.PersistentVolumeAccessMode{api.ReadOnlyMany},
					Capacity: map[api.ResourceName]resource.Quantity{
						api.ResourceStorage: resource.MustParse("4Gi"),
					},
				},
				Status: api.PersistentVolumeStatus{
					Phase: api.VolumeBound,
				},
			},