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Burger Options & Toppings

Goal

Separate the "toppings" and related pricing from the core Burger pricing.

Make Default a Regular Burger

First, we'll make the default burger a regular burger, so that it's no longer specified as an option.

  • Replace the existing regularBurgerCosts5 test in BurgerTest with the following:

    @Test
public void burgerWithNoToppingsCosts5() throws Exception {
  Burger burger = new Burger();

  int price = burger.price();

  assertThat(price)
            .isEqualTo(5);
}

  • The above test will not compile because the "no argument" constructor doesn't exist. Add a constructor that takes no arguments and has no code.

  • Run the test, it should fail with a NullPointerException

  • Modify the Burger class so that it passes

    • Are there any other tests you could write?