anchor.diff:        ToolName = @"nunit-console.exe";
         TestInNewThread = false;
         OutputFile = currentDirectory @@ "TestResult.xml";
  +      Out = null;
         ErrorOutputFile = null;
         WorkingDir = null;
         Framework = null;
  
positive.code:       ToolName:string;
        TestInNewThread:bool;
        OutputFile:string;
        ErrorOutputFile:string;
        Framework:string;
        ShowLabels: bool;
  
negative.code:           |> appendIfNotNull parameters.ExcludeCategory "-exclude:"
            |> appendIfNotNull parameters.XsltTransformFile "-transform:"
            |> appendIfNotNull parameters.OutputFile  "-xml:"
            |> appendIfNotNull parameters.Out "-out:"
            |> appendIfNotNull parameters.Framework  "-framework:"
            |> appendIfNotNull parameters.ErrorOutputFile "-err:"
            |> appendIfNotNull parameters.Domain "-domain:"
  