chunkSignature []byte
	}
	// List of readers used.
	readers := []io.Reader{
		// Test - 1
		bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
		// Test - 2
		bytes.NewReader([]byte("1000;")),
		// Test - 3
		bytes.NewReader(fmt.Appendf(nil, "%4097d", 1)),
		// Test - 4
		bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
	}
	testCases := []testCase{

	if err != nil {
		t.Fatal(err)
	}
	// PutObjectPart should succeed even if part already exists. ref: https://github.com/minio/minio/issues/1930
	_, err = objLayer.PutObjectPart(ctx, "bucket1", "mpartObj1", res.UploadID, 1, mustGetPutObjReader(t, bytes.NewReader(fiveMBBytes), 5*humanize.MiByte, md5Hex, ""), opts)
	if err != nil {

			var expectedPolicy *policy.BucketPolicy
			expectedPolicy, err = policy.ParseBucketPolicyConfig(strings.NewReader(expectedBucketPolicyStr), testCase.bucketName)
			if err != nil {
				t.Fatalf("unexpected error. %v", err)
			}
			var gotPolicy *policy.BucketPolicy
			gotPolicy, err = policy.ParseBucketPolicyConfig(bytes.NewReader(bucketPolicyReadBuf), testCase.bucketName)
			if err != nil {
				t.Fatalf("unexpected error. %v", err)

	c.Assert(err, nil)
	// Verify if downloaded policy matches with previously uploaded.
	expectedPolicy, err := policy.ParseBucketPolicyConfig(strings.NewReader(bucketPolicyStr), bucketName)
	c.Assert(err, nil)
	gotPolicy, err := policy.ParseBucketPolicyConfig(bytes.NewReader(bucketPolicyReadBuf), bucketName)
	c.Assert(err, nil)
	c.Assert(reflect.DeepEqual(expectedPolicy, gotPolicy), true)

	// Delete policy.

	case dataUsageCacheVerV2:
		// Zstd compressed.
		dec, err := zstd.NewReader(r, zstd.WithDecoderConcurrency(2))
		if err != nil {
			return err
		}
		defer dec.Close()

		dold := &dataUsageCacheV2{}
		if err = dold.DecodeMsg(msgp.NewReader(dec)); err != nil {
			return err
		}
		d.Info = dold.Info

			var sz int64
			f, err := os.Open(file)
			if err != nil {
				return err
			}
			if st, err := f.Stat(); err == nil {
				sz = st.Size()
			}
			defer f.Close()
			zr, err := zip.NewReader(f, sz)
			if err != nil {
				return err
			}
			for _, file := range zr.File {
				if !file.FileInfo().IsDir() && strings.HasSuffix(file.Name, ".healing.bin") {
					r, err := file.Open()
					if err != nil {

			hopts := hash.Options{
				Size:       int64(len(fanOutBuf)),
				MD5Hex:     opts.MD5Hex,
				SHA256Hex:  "",
				ActualSize: -1,
				DisableMD5: true,
			}
			hr, err := hash.NewReaderWithOpts(ctx, bytes.NewReader(fanOutBuf), hopts)
			if err != nil {
				errs[idx] = err
				return
			}

			reader := NewPutObjReader(hr)
			defer func() {
				if err := reader.Close(); err != nil {
					errs[idx] = err
				}

				int64(len(testCase.objects)), bytes.NewReader(testCase.objects), testCase.accessKey, testCase.secretKey, nil)
		} else {
			req, err = newTestRequest(http.MethodPost, getDeleteMultipleObjectsURL("", testCase.bucket),
				int64(len(testCase.objects)), bytes.NewReader(testCase.objects))
		}
		if err != nil {

	}
	respBody, err := client.call(ctx, storageRESTMethodReadMultiple, nil, bytes.NewReader(body), int64(len(body)))
	if err != nil {
		return err
	}
	defer xhttp.DrainBody(respBody)

	pr, pw := io.Pipe()
	go func() {
		pw.CloseWithError(waitForHTTPStream(respBody, xioutil.NewDeadlineWriter(pw, globalDriveConfig.GetMaxTimeout())))
	}()
	mr := msgp.NewReader(pr)
	defer readMsgpReaderPoolPut(mr)
	for {

		t.Fatal(err)
	}

	oi1, err := obj.PutObject(ctx, bucket, object, mustGetPutObjReader(t, bytes.NewReader(data), length, "", ""), ObjectOptions{})
	if err != nil {
		t.Fatal(err)
	}
	// 2nd version.
	_, _ = rand.Read(data)
	oi2, err := obj.PutObject(ctx, bucket, object, mustGetPutObjReader(t, bytes.NewReader(data), length, "", ""), ObjectOptions{})
	if err != nil {
		t.Fatal(err)
	}

	disk := er.getDisks()[0]