public void DisplayTimespan()
{
Assert.AreEqual("0.10 sec",
TimeToCompletion.DisplayTimespan(TimeSpan.FromSeconds(0.1), false).ReplaceDefaults(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator, ".", "", ""));
Assert.AreEqual("20 sec",
TimeToCompletion.DisplayTimespan(TimeSpan.FromSeconds(20), false).ReplaceDefaults(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator, ".", "", ""));
Assert.AreEqual("20:30",
TimeToCompletion.DisplayTimespan(TimeSpan.FromMinutes(20.5), false).ReplaceDefaults(CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator, ".", "", ""));
Assert.AreEqual("", TimeToCompletion.DisplayTimespan(TimeSpan.FromSeconds(0.1), true));
}