public void Comparison()
 {
     TestHelper.TestCompareToStruct(negativeFiftyMillion, new Duration(-50000000), threeMillion);
     TestHelper.TestNonGenericCompareTo(negativeFiftyMillion, new Duration(-50000000), threeMillion);
     TestHelper.TestOperatorComparisonEquality(negativeFiftyMillion, new Duration(-50000000), threeMillion);
 }
 public void Equality()
 {
     TestHelper.TestEqualsStruct(threeMillion, new Duration(3000000), negativeFiftyMillion);
     TestHelper.TestOperatorEquality(threeMillion, new Duration(3000000), negativeFiftyMillion);
 }