public SingleRelDefTester(ISingleRelationshipDef singleRelationshipDef)
 {
     if (singleRelationshipDef == null)
     {
         throw new ArgumentNullException("singleRelationshipDef");
     }
     SingleRelationshipDef = singleRelationshipDef;
 }
 public SingleRelDefTester(ISingleRelationshipDef singleRelationshipDef)
 {
     if (singleRelationshipDef == null) throw new ArgumentNullException("singleRelationshipDef");
     SingleRelationshipDef = singleRelationshipDef;
 }
 internal static void SetIsNotCompulsory(this ISingleRelationshipDef singleRelationshipDef)
 {
     singleRelationshipDef.Compulsory = false;
 }
 internal static void SetIsCompulsory(this ISingleRelationshipDef singleRelationshipDef)
 {
     singleRelationshipDef.Compulsory = true;
 }