public void ShrinkEndToTest()
{
TimeInterval timeInterval = new TimeInterval( start, end );
timeInterval.ShrinkEndTo( end.AddMilliseconds( 1 ) );
Assert.AreEqual( timeInterval.End, end );
timeInterval.ShrinkEndTo( end.AddMinutes( -1 ) );
Assert.AreEqual( timeInterval.End, end.AddMinutes( -1 ) );
}