private string MakeBook(string bookName, string id, string uploader, string data)
{
var f = new TemporaryFolder(_workFolder, bookName);
File.WriteAllText(Path.Combine(f.FolderPath, "one.htm"), data);
File.WriteAllText(Path.Combine(f.FolderPath, "one.css"), @"test");
File.WriteAllText(Path.Combine(f.FolderPath, "meta.json"), "{\"bookInstanceId\":\"" + id + _thisTestId + "\",\"uploadedBy\":\"" + uploader + "\"}");
return f.FolderPath;
}