The following code represents the first operation: ReadProducts(publicProductReader);ReadProducts(privateProductRepository); Since the PublicProductReader and PrivateProductRepository classes implement the IProductReader interface, the ReadProducts...
In this project, we start with the same class as the SRP example but extract an interface from the ProductRepository...
The key idea of the LSP is that the consumer of a supertype should remain unaware of whether it’s interacting...
This scenario explores that postconditions implemented in a supertype should yield the same outcome in its subtypes, but subtypes can...
This scenario explores that any precondition implemented in a supertype should yield the same outcome in its subtypes, but subtypes...
An excellent way of enforcing those behavioral constraints is automated testing. You can write a test suite and run it...
The LSP came from Barbara Liskov at the end of the ‘80s and was revisited during the ‘90s by both...
To demo covariance, we leverage the following generic interface:public interface IContravariant{void Set(T value);} In C#, the in modifier, the highlighted...
The Liskov Substitution Principle (LSP) states that in a program, if we replace an instance of a superclass (supertype) with...