private void When_OutputFileExists_Expect_Exception_Helper()
        {
            string outputStr          = "Output_Files/existingOutput.txt";
            string relativeOutputPath = OSString + outputStr;

            ArgParser.GetOutputPath(relativeOutputPath);
        }
        public void When_Correct_GetOutputPath_Expect_True()
        {
            string outputStr = Path.Combine("Output_Files", "output.txt");

            // IO must be either "Input_Files" or "Output_Files".
            // Expected output for test files.
            // Paths contain "Nodegraph_Generator.Tests"
            string relativePath = Path.Combine(OSString, outputStr);
            string outputPath   = ArgParser.GetOutputPath(relativePath);

            string expectedOutputPath = Path.Combine("SUM_Nodegraph_Generator", outputStr);

            StringAssert.Contains(expectedOutputPath, outputPath);
        }