public async Task ParseGcodeAsync()
{
    public string testfile = @"Gcodes\Test.gcode";
    var prog = new Progress<int>(percent =>
    {
        Console.WriteLine($"Parsed: {percent}%");
    });
    if (File.Exists(testfile))
    {
        CancellationTokenSource cts = new CancellationTokenSource();
        var gcode = await GcodeParser.Instance.FromFileAsync(testfile, prog, cts.Token, false);
        if (gcode != null)
        {
            Console.WriteLine($"Gcode parsed in: {gcode.ParsingDuration}");
        }
        else
            Assert.Fail($"Parsed gcoe was null: {testfile}");
    }
    else
        Assert.Fail($"{testfile} not found!");
}