public void CreateNewBusinessBase()
{
// create a new instance of BusinessBase
var instance = new ConcreteBusinessBase();
// assert the instance is not null
Assert.IsNotNull(instance);
}
public void Id()
{
// create a new instance of BusinessBase
var instance = new ConcreteBusinessBase();
// set a test id constant
const int TestId = 5;
// set the identifier of the instance to test id
instance.Id = TestId;
// ensure the property is equal to the constant
Assert.AreEqual(TestId, instance.Id);
}