index.store.Add(ebs)
	index.store.Add(nfs)

	volume, _ := index.findBestMatchForClaim(claim, false)
	if volume.Name != ebs.Name {
		t.Errorf("Expected %s but got volume %s instead", ebs.Name, volume.Name)
	}

	claim.Spec.AccessModes = []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce, v1.ReadOnlyMany}
	volume, _ = index.findBestMatchForClaim(claim, false)
	if volume.Name != gce.Name {

			return nil, err
		}

		if bestVol != nil {
			return bestVol, nil
		}
	}
	return nil, nil
}

// findBestMatchForClaim is a convenience method that finds a volume by the claim's AccessModes and requests for Storage
func (pvIndex *persistentVolumeOrderedIndex) findBestMatchForClaim(claim *v1.PersistentVolumeClaim, delayBinding bool) (*v1.PersistentVolume, error) {
	return pvIndex.findByClaim(claim, delayBinding)
}

		delayBinding, err := storagehelpers.IsDelayBindingMode(claim, ctrl.classLister)
		if err != nil {
			return err
		}

		// [Unit test set 1]
		volume, err := ctrl.volumes.findBestMatchForClaim(claim, delayBinding)
		if err != nil {
			logger.V(2).Info("Synchronizing unbound PersistentVolumeClaim, Error finding PV for claim", "PVC", klog.KObj(claim), "err", err)