public void Build_Turkey_Sandwich()
        {
            var builder  = new TurkeySandwichBuilder();
            var sandwich = builder.Build();

            Assert.Equal("Toasted: True | Mustard: False | Mayo: True | Meat: Turkey | Cheese: Cheddar", sandwich.ToString());
        }
        public void TurkeySandwichBuilderCreateTest()
        {
            TurkeySandwichBuilder builder = new TurkeySandwichBuilder();

            Assert.IsInstanceOfType(builder, typeof(TurkeySandwichBuilder));
            Assert.IsInstanceOfType(builder, typeof(SandwichBuilder));
        }