for _, file := range files {
		objName := zipObjInfo.Name + archiveSeparator + file.Name
		if objName <= startAfter || objName <= token {
			continue
		}
		if strings.HasPrefix(objName, prefix) {
			if count == maxKeys {
				isTruncated = true
				break
			}
			if delimiter != "" {
				i := strings.Index(objName[len(prefix):], delimiter)
				if i >= 0 {

		2: {
			bucketName: "$this-is-not-valid-too", objName: "obj", inputData: []byte(""),
			expectedError: BucketNameInvalid{Bucket: "$this-is-not-valid-too"},
		},
		3: {bucketName: "a", objName: "obj", inputData: []byte(""), expectedError: BucketNameInvalid{Bucket: "a"}},

		// Case with invalid object names.

	}
}

type jentry struct {
	ObjName   string
	VersionID string
	TierName  string
}

func deleteObjectFromRemoteTier(ctx context.Context, objName, rvID, tierName string) error {
	w, err := globalTierConfigMgr.getDriver(ctx, tierName)
	if err != nil {
		return err
	}
	return w.Remove(ctx, objName, remoteVersionID(rvID))

	}{
		// Test case  1-4.
		// Cases with invalid bucket name.
		{bucketName: ".test", objName: "obj", PartID: 1, expectedError: fmt.Errorf("%s", "Bucket name invalid: .test")},
		{bucketName: "------", objName: "obj", PartID: 1, expectedError: fmt.Errorf("%s", "Bucket name invalid: ------")},
		{
			bucketName: "$this-is-not-valid-too", objName: "obj", PartID: 1,
			expectedError: fmt.Errorf("%s", "Bucket name invalid: $this-is-not-valid-too"),

		Quiet: false,
	}
	for i := 0; i < 10; i++ {
		// Obtain http request to upload object.
		// object Name contains a prefix.
		objName := fmt.Sprintf("%d/%s", i, objectName)
		request, err = newTestSignedRequest(http.MethodPut, getPutObjectURL(s.endPoint, bucketName, objName),
			0, nil, s.accessKey, s.secretKey, s.signer)
		c.Assert(err, nil)

		// execute the http request.
		response, err = s.client.Do(request)

}

func (n newerNoncurrentTask) OpHash() uint64 {
	return xxh3.HashString(n.bucket + n.versions[0].ObjectV.ObjectName)
}

func (j jentry) OpHash() uint64 {
	return xxh3.HashString(j.TierName + j.ObjName)
}

func (e expiryTask) OpHash() uint64 {
	return xxh3.HashString(e.objInfo.Bucket + e.objInfo.Name)
}

// expiryState manages all ILM related expiration activities.
type expiryState struct {

	validPartMD5 := getMD5Hash(validPart)
	// Create multipart parts.
	// Need parts to be uploaded before CompleteMultiPartUpload can be called tested.
	parts := []struct {
		bucketName      string
		objName         string
		uploadID        string
		PartID          int
		inputReaderData string
		inputMd5        string
		inputDataSize   int64
	}{
		// Case 1-4.

	return false
}

// returns true if object was modified after givenTime.
func ifModifiedSince(objTime time.Time, givenTime time.Time) bool {
	// The Date-Modified header truncates sub-second precision, so
	// use mtime < t+1s instead of mtime <= t to check for unmodified.
	return objTime.After(givenTime.Add(1 * time.Second))
}

// canonicalizeETag returns ETag with leading and trailing double-quotes removed,