private static string GetActualResult(string inputLines) { var tempFileName = Path.GetTempFileName(); using (var writer = new StreamWriter(tempFileName)) writer.Write(inputLines); var actualResult = GetActualResult(); try { File.Delete(tempFileName); } catch (IOException) { } return(actualResult); string GetActualResult() { using (var reader = new StreamReader(tempFileName)) { var(graph, source, target) = DataParser.GetInputData(reader.ReadLine); var resultPath = DijkstraPathFinder.GetShortestPath(graph, source, target); return(DataParser.ResultGenerate(resultPath, graph)); } } }