Custom Comparers

To add a custom comparer, implement BaseTypeComparer and add to the Config.CustomComparers collection. Custom comparers are run before the built in comparers.

Example

    public class MyCustomComparer : BaseTypeComparer
    {
        public MyCustomComparer(RootComparer rootComparer) : base(rootComparer)
        {
        }

        public override bool IsTypeMatch(Type type1, Type type2)
        {
            return type1 == typeof (SpecificTenant);
        }

        public override void CompareType(CompareParms parms)
        {
            var st1 = (SpecificTenant)parms.Object1;
            var st2 = (SpecificTenant)parms.Object2;

            if (st1.Name != st2.Name || st1.Amount > 100 || st2.Amount < 100)
            {
                AddDifference(parms);
            }
        }
    }

Usage

            CompareLogic compareLogic = new CompareLogic();

            SpecificTenant tenant1 = new SpecificTenant();
            tenant1.Name = "wire";
            tenant1.Amount = 37;

            SpecificTenant tenant2 = new SpecificTenant();
            tenant2.Name = "wire";
            tenant2.Amount = 155;            

            //No Custom Comparer
            Assert.IsFalse(compareLogic.Compare(tenant1, tenant2).AreEqual);

            //specify custom selector
            compareLogic.Config.CustomComparers.Add(new MyCustomComparer(RootComparerFactory.GetRootComparer()));

            Assert.IsTrue(compareLogic.Compare(tenant1, tenant2).AreEqual);

            tenant2.Amount = 42;
            Assert.IsFalse(compareLogic.Compare(tenant1, tenant2).AreEqual);