public void StartingTwice(Stopwatch sw)
{
sw.Start();
sw.Start();
/* Not started or stopped */
Console.WriteLine($"Duration: {sw.Duration().ToString()}");
}
public void HappyPath(Stopwatch sw)
{
sw.Start();
Thread.Sleep(3000);
sw.Stop();
Console.WriteLine($"Duration: {sw.Duration().ToString()}");
}