public IEnumerable <object[]> TestData() { var inputDirectories = InputDirectory.EnumerateDirectories("*", SearchOption.TopDirectoryOnly).ToList(); if (!inputDirectories.Any()) { CreateVersionCompatData().Wait(); throw new Exception("No test data for version compat test encoded data created at: " + _ouputTempVersionDataDirectory.FullName); } return(inputDirectories.Select(directory => new [] { directory })); }