Given the following SUT, would you consider this unit test to be unnecessary?
**edit : we cannot assume the names will match, so reflection wouldn't work.
**edit 2 : in actuality, this class would implement an IMapper interface and there would be full blown behavioral (mock) testing at the business logic layer of the application. this test just happens to be the lowest level of testing that must be state based. I question whether this test is truly necessary because the test code is almost identical to the source code itself, and based off of actual experience I don't see how this unit test makes maintenance of the application any easier.
//SUT
public class Mapper
{
public void Map(DataContract from, DataObject to)
{
to.Value1 = from.Value1;
to.Value2 = from.Value2;
....
to.Value100 = from.Value100;
}
}
//Unit Test
public class MapperTest()
{
DataContract contract = new DataContract(){... } ;
DataObject do = new DataObject(){...};
Mapper mapper = new Mapper();
mapper.Map(contract, do);
Assert.AreEqual(do.Value1, contract.Value1);
...
Assert.AreEqual(do.Value100, contract.Value100);
}