public void ToDurationString_ShouldReturnEmptyString_WhenTimespanEmpty()
{
var ts = new TimeSpan();
var result = ts.ToDurationString();
Assert.AreEqual(string.Empty, result);
}
public void ToDurationString_ShouldReturnCorrectString_WhenTimespanEmpty(int days, int hours, int minutes, int seconds, int mseconds, string expected)
{
var ts = new TimeSpan(days, hours, minutes, seconds, mseconds);
var result = ts.ToDurationString();
Assert.AreEqual(expected, result);
}
public static string ToDurationString(this DateTime since, DateTime start)
{
var ts = new TimeSpan(start.Ticks - since.Ticks);
return ts.ToDurationString();
}
