static void SOLIDLiskovSubstitutuion()
{
RectangleWithViolatingLiskovSubstitutionPrinciple rcWithViolatingLiskovSubstitutionPrinciple = new RectangleWithViolatingLiskovSubstitutionPrinciple(2, 3);
Console.WriteLine($"{rcWithViolatingLiskovSubstitutionPrinciple} has area {AreaWithViolatingLiskovSubstitutionPrinciple(rcWithViolatingLiskovSubstitutionPrinciple)}");
// should be able to substitute a base type for a subtype
/*Square*/
RectangleWithViolatingLiskovSubstitutionPrinciple sqWithViolatingLiskovSubstitutionPrinciple = new RectangleWithViolatingLiskovSubstitutionPrinciple();
sqWithViolatingLiskovSubstitutionPrinciple.Width = 4;
Console.WriteLine($"{sqWithViolatingLiskovSubstitutionPrinciple } has area {AreaWithViolatingLiskovSubstitutionPrinciple(sqWithViolatingLiskovSubstitutionPrinciple)}");
// Without violating Liskov Substitutuion Principle
Rectangle rc = new Rectangle(2, 3);
Console.WriteLine($"{rc} has area {Area(rc)}");
// should be able to substitute a base type for a subtype
/*Square*/
Rectangle sq = new Square();
sq.Width = 4;
Console.WriteLine($"{sq} has area {Area(sq)}");
}
static public int AreaWithViolatingLiskovSubstitutionPrinciple(RectangleWithViolatingLiskovSubstitutionPrinciple r) => r.Width * r.Height;