public void ShrinkToTest()
{
TimeRange timeRange = new TimeRange( start, end );
// no shrink
timeRange.ShrinkTo( new TimeRange( start.AddMilliseconds( -1 ), end.AddMilliseconds( 1 ) ) );
Assert.AreEqual( timeRange.Start, start );
Assert.AreEqual( timeRange.End, end );
// start
DateTime changedStart = start.AddMinutes( 1 );
timeRange.ShrinkTo( new TimeRange( changedStart, end ) );
Assert.AreEqual( timeRange.Start, changedStart );
Assert.AreEqual( timeRange.End, end );
// end
DateTime changedEnd = end.AddMinutes( -1 );
timeRange.ShrinkTo( new TimeRange( changedStart, changedEnd ) );
Assert.AreEqual( timeRange.Start, changedStart );
Assert.AreEqual( timeRange.End, changedEnd );
// start/end
changedStart = changedStart.AddMinutes( 1 );
changedEnd = changedEnd.AddMinutes( -1 );
timeRange.ShrinkTo( new TimeRange( changedStart, changedEnd ) );
Assert.AreEqual( timeRange.Start, changedStart );
Assert.AreEqual( timeRange.End, changedEnd );
}