CanvasTest.Canvas.CommandLineParsing.ModeParserTests.Parse_ModeWithMissingRequiredArgument_DisplaysError C# (CSharp) Method

        public void Parse_ModeWithMissingRequiredArgument_DisplaysError(string messageToDisplay, string name, string description, StringWriter standardWriter,
            StringWriter errorWriter)
        {
            // arrange
            GermlineWgsModeParser germlineWgsModeParser = new GermlineWgsModeParser("WGS", "Run Canvas from WGS data");
            MainParser parser = GetMainParser(germlineWgsModeParser);
            string[] modeArgs =
            {
                "WGS"
            };

            // act
            parser.Parse(modeArgs, standardWriter, errorWriter);
            string errorOutput = errorWriter.ToString();

            // assert
            Assert.Contains(messageToDisplay, errorOutput);
            Assert.Empty(standardWriter.ToString());
        }