Itenso.TimePeriod.TimePeriodCollection.GetRelation C# (CSharp) Method

        public virtual PeriodRelation GetRelation( ITimePeriod test )
        {
            if ( test == null )
            {
                throw new ArgumentNullException( "test" );
            }
            return TimePeriodCalc.GetRelation( this, test );
        }

        public void GetRelationTest()
        {
            DateTime now = ClockProxy.Clock.Now;
            TimeSpan offset = Duration.Second;
            TimeRangePeriodRelationTestData testData = new TimeRangePeriodRelationTestData( now, now.AddHours( 1 ), offset );
            TimePeriodCollection timePeriods = new TimePeriodCollection();
            timePeriods.Add( testData.Reference );

            Assert.AreEqual( timePeriods.GetRelation( testData.Before ), PeriodRelation.Before );
            Assert.AreEqual( timePeriods.GetRelation( testData.StartTouching ), PeriodRelation.StartTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.StartInside ), PeriodRelation.StartInside );
            Assert.AreEqual( timePeriods.GetRelation( testData.InsideStartTouching ), PeriodRelation.InsideStartTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.EnclosingStartTouching ), PeriodRelation.EnclosingStartTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.Enclosing ), PeriodRelation.Enclosing );
            Assert.AreEqual( timePeriods.GetRelation( testData.EnclosingEndTouching ), PeriodRelation.EnclosingEndTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.ExactMatch ), PeriodRelation.ExactMatch );
            Assert.AreEqual( timePeriods.GetRelation( testData.Inside ), PeriodRelation.Inside );
            Assert.AreEqual( timePeriods.GetRelation( testData.InsideEndTouching ), PeriodRelation.InsideEndTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.EndInside ), PeriodRelation.EndInside );
            Assert.AreEqual( timePeriods.GetRelation( testData.EndTouching ), PeriodRelation.EndTouching );
            Assert.AreEqual( timePeriods.GetRelation( testData.After ), PeriodRelation.After );
        }