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