public void ExpandStartToTest()
{
TimeRange timeRange = new TimeRange( start, end );
timeRange.ExpandStartTo( start.AddMilliseconds( 1 ) );
Assert.AreEqual( timeRange.Start, start );
timeRange.ExpandStartTo( start.AddMinutes( -1 ) );
Assert.AreEqual( timeRange.Start, start.AddMinutes( -1 ) );
}