David Atkins

lib/dish.rb

@@ -0,0 +1,7 @@
+class Dish
+  attr_reader :name, :category
+  def initialize(name, category)
+    @name = name
+    @category = category
+  end
+end

lib/potluck.rb

@@ -0,0 +1,46 @@
+class Potluck
+  attr_reader :date, :dishes
+
+  def initialize(date)
+    @date = date
+    @dishes = []
+  end
+
+  def add_dish(dish)
+    @dishes << dish
+  end
+
+  def length
+    @dishes.length
+  end
+
+  def get_all_from_category(category)
+    @dishes.find_all do |dish|
+      dish.category == category
+    end
+  end
+
+  def menu
+    categories = []
+    return_menu = {}
+    @dishes.each do |dish|
+      if !(categories.include?(dish.category))
+        categories << dish.category
+      end
+    end
+
+    categories.each do |category|
+      category_items = get_all_from_category(category)
+      category_items = category_items.sort_by{|item| item.name}
+      return_menu[category] = category_items
+    end
+
+    return return_menu
+
+  end
+
+  def ratio(category)
+    return ((menu[category].length.to_f / length) * 100).round(2)
+  end
+
+end

test/dish_test.rb

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+require 'minitest/autorun'
+require 'minitest/pride'
+require './lib/dish'
+
+class DishTest < Minitest::Test
+
+  def test_it_exists
+    dish = Dish.new("Couscous Salad", :appetizer)
+    assert_instance_of Dish, dish
+  end
+
+  def test_instance_variables
+    dish = Dish.new("Couscous Salad", :appetizer)
+    assert_equal "Couscous Salad", dish.name
+    assert_equal :appetizer, dish.category
+  end
+
+end

test/potluck_test.rb

@@ -0,0 +1,94 @@
+require 'minitest/autorun'
+require 'minitest/pride'
+require './lib/potluck'
+require './lib/dish'
+
+class PotluckTest < Minitest::Test
+  def test_it_exists
+    potluck = Potluck.new("7-13-18")
+    assert_instance_of Potluck, potluck
+  end
+
+  def test_instance_variables
+    potluck = Potluck.new("7-13-18")
+    assert_equal "7-13-18", potluck.date
+    assert_equal [], potluck.dishes
+  end
+
+  def test_add_dish
+    potluck = Potluck.new("7-13-18")
+    couscous_salad = Dish.new("Couscous Salad", :appetizer)
+    cocktail_meatballs = Dish.new("Cocktail Meatballs", :entre)
+    potluck.add_dish(couscous_salad)
+    potluck.add_dish(cocktail_meatballs)
+
+    assert_equal couscous_salad, potluck.dishes[0]
+    assert_equal cocktail_meatballs, potluck.dishes[1]
+  end
+
+  def test_length
+    potluck = Potluck.new("7-13-18")
+    couscous_salad = Dish.new("Couscous Salad", :appetizer)
+    cocktail_meatballs = Dish.new("Cocktail Meatballs", :entre)
+    potluck.add_dish(couscous_salad)
+    potluck.add_dish(cocktail_meatballs)
+
+    assert_equal 2, potluck.dishes.length
+  end
+
+  def test_get_all_from_category
+    potluck = Potluck.new("7-13-18")
+    couscous_salad = Dish.new("Couscous Salad", :appetizer)
+    summer_pizza = Dish.new("Summer Pizza", :appetizer)
+    roast_pork = Dish.new("Roast Pork", :entre)
+    cocktail_meatballs = Dish.new("Cocktail Meatballs", :entre)
+    candy_salad = Dish.new("Candy Salad", :dessert)
+    potluck.add_dish(couscous_salad)
+    potluck.add_dish(summer_pizza)
+    potluck.add_dish(roast_pork)
+    potluck.add_dish(cocktail_meatballs)
+    potluck.add_dish(candy_salad)
+    expected = potluck.get_all_from_category(:appetizer)
+    assert_equal [couscous_salad, summer_pizza], expected
+    expected = potluck.get_all_from_category(:appetizer).first
+    assert_equal couscous_salad, expected
+    expected = potluck.get_all_from_category(:appetizer).first.name
+    assert_equal "Couscous Salad", expected
+  end
+
+  def test_menu
+    potluck = Potluck.new("7-13-18")
+    couscous_salad = Dish.new("Couscous Salad", :appetizer)
+    summer_pizza = Dish.new("Summer Pizza", :appetizer)
+    roast_pork = Dish.new("Roast Pork", :entre)
+    cocktail_meatballs = Dish.new("Cocktail Meatballs", :entre)
+    candy_salad = Dish.new("Candy Salad", :dessert)
+    bean_dip = Dish.new("Bean Dip", :appetizer)
+    potluck.add_dish(couscous_salad)
+    potluck.add_dish(summer_pizza)
+    potluck.add_dish(roast_pork)
+    potluck.add_dish(cocktail_meatballs)
+    potluck.add_dish(candy_salad)
+    potluck.add_dish(bean_dip)
+    appetizers = [bean_dip, couscous_salad, summer_pizza]
+    assert_equal appetizers, potluck.menu[:appetizer]
+  end
+
+  def test_ratio
+    potluck = Potluck.new("7-13-18")
+    couscous_salad = Dish.new("Couscous Salad", :appetizer)
+    summer_pizza = Dish.new("Summer Pizza", :appetizer)
+    roast_pork = Dish.new("Roast Pork", :entre)
+    cocktail_meatballs = Dish.new("Cocktail Meatballs", :entre)
+    candy_salad = Dish.new("Candy Salad", :dessert)
+    bean_dip = Dish.new("Bean Dip", :appetizer)
+    potluck.add_dish(couscous_salad)
+    potluck.add_dish(summer_pizza)
+    potluck.add_dish(roast_pork)
+    potluck.add_dish(cocktail_meatballs)
+    potluck.add_dish(candy_salad)
+    potluck.add_dish(bean_dip)
+
+    assert_equal 50.0, potluck.ratio(:appetizer)
+  end
+end