if partOffset < part.Size {
			return partIndex, partOffset, nil
		}
		// Continue to towards the next part.
		partOffset -= part.Size
	}
	internalLogIf(ctx, InvalidRange{})
	// Offset beyond the size of the object return InvalidRange.
	return 0, 0, InvalidRange{}
}

func findFileInfoInQuorum(ctx context.Context, metaArr []FileInfo, modTime time.Time, etag string, quorum int) (FileInfo, error) {
	// with less quorum return error.

func (e IncompleteBody) Error() string {
	return e.Bucket + "/" + e.Object + " has incomplete body"
}

// InvalidRange - invalid range typed error.
type InvalidRange struct {
	OffsetBegin  int64
	OffsetEnd    int64
	ResourceSize int64
}

func (e InvalidRange) Error() string {
	return fmt.Sprintf("The requested range 'bytes=%d-%d' is not satisfiable", e.OffsetBegin, e.OffsetEnd)
}

		{-1, 0, -1, nil},
		// Max fffset is always (size - 1).
		{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte) - 1, 4, 1048582, nil},
		// Error if offset is size.
		{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte), 0, 0, InvalidRange{}},
	}

	// Test them.
	for _, testCase := range testCases {
		index, offset, err := fi.ObjectToPartOffset(t.Context(), testCase.offset)
		if err != testCase.expectedErr {

	case "SlowDownRead":
		err = InsufficientReadQuorum{Bucket: bucket, Object: object}
	case "PreconditionFailed":
		err = PreConditionFailed{}
	case "InvalidRange":
		err = InvalidRange{}
	case "BucketAlreadyOwnedByYou":
		err = BucketAlreadyOwnedByYou{}
	case "BucketNotEmpty":
		err = BucketNotEmpty{}
	case "NoSuchBucketPolicy":
		err = BucketPolicyNotFound{}