private static string[] Calculate(string testName, int[] elem) { var path1 = string.Format( @"test\CompleteComparison\sources\{0}\{1:00}\main.c", testName, elem[0]); var path2 = string.Format( @"test\CompleteComparison\sources\{0}\{1:00}\main.c", testName, elem[1]); return(new[] { string.Format("{0}-{1}", elem[0], elem[1]), AppHelper.CompareFiles(path1, path2).ToString(CultureInfo.InvariantCulture) }); }