completed exercise 1 of objects and methods

objects-and-methods/exercise-1/lib/bag.rb

@@ -0,0 +1,28 @@
+class Bag
+
+  def initialize
+    @candies = []
+  end
+
+  def empty?
+    candies.empty?
+  end
+
+  def candies
+    @candies
+  end
+
+  def count
+    candies.count
+  end
+
+  def <<(candy)
+    @candies << candy
+  end
+
+  def contains?(type)
+    candies.any? do |candy|
+      candy.type == type
+    end
+  end
+end

objects-and-methods/exercise-1/lib/candy.rb

@@ -0,0 +1,6 @@
+class Candy
+  attr_reader :type
+  def initialize(type)
+      @type = type
+  end
+end

objects-and-methods/exercise-1/lib/costume.rb

@@ -0,0 +1,6 @@
+class Costume
+attr_reader :style
+  def initialize(style)
+    @style = style
+  end
+end

objects-and-methods/exercise-1/lib/trick_or_treater.rb

@@ -0,0 +1,27 @@
+class TrickOrTreater
+
+  def initialize(costume)
+    @costume = costume
+    @bag = Bag.new
+  end
+
+  def dressed_up_as
+    @costume.style
+  end
+
+  def bag
+    @bag
+  end
+
+  def has_candy?
+    !bag.empty?
+  end
+
+  def candy_count
+    bag.count
+  end
+
+  def eat
+    bag.candies.pop
+  end
+end

objects-and-methods/exercise-1/test/bag_test.rb

@@ -10,39 +10,39 @@ def test_a_new_bag_is_empty
   end
 
   def test_count_the_candies_in_an_empty_bag
-    skip
+    # skip
     assert_equal 0, Bag.new.count
   end
 
   def test_empty_bag_has_no_candies
-    skip
+    # skip
     assert_equal [], Bag.new.candies
   end
 
   def test_put_candy_in_the_bag
-    skip
+    # skip
     bag = Bag.new
     candy = Candy.new("Sour frogs")
     bag << candy
     assert_equal [candy], bag.candies
   end
 
   def test_a_bag_with_candies_is_not_empty
-    skip
+    # skip
     bag = Bag.new
     bag << Candy.new("Nerds")
     refute bag.empty?
   end
 
   def test_bag_counts_candies
-    skip
+    # skip
     bag = Bag.new
     bag << Candy.new("Caramelized Almonds")
     assert_equal 1, bag.count
   end
 
   def test_bag_contains_candies_and_candies_have_a_type
-    skip
+    # skip
     bag = Bag.new
     bag << Candy.new("Hershey's Kisses")
     # You usually don't want to chain a bunch of different
@@ -54,12 +54,11 @@ def test_bag_contains_candies_and_candies_have_a_type
   end
 
   def test_ask_bag_if_it_contains_a_particular_type_of_candy
-    skip
+    # skip
     bag = Bag.new
     bag << Candy.new("Lindt chocolate")
 
     assert bag.contains?("Lindt chocolate")
     refute bag.contains?("Hershey's chocolate")
   end
 end
-

objects-and-methods/exercise-1/test/candy_test.rb

@@ -10,9 +10,8 @@ def test_candy_type
   end
 
   def test_other_type_of_candy
-    skip
+    # skip
     candy = Candy.new("Mars")
     assert_equal "Mars", candy.type
   end
 end
-

objects-and-methods/exercise-1/test/costume_test.rb

@@ -10,9 +10,8 @@ def test_costume_style
   end
 
   def test_other_style_of_costume
-    skip
+    # skip
     costume = Costume.new("Princess")
     assert_equal "Princess", costume.style
   end
 end
-

objects-and-methods/exercise-1/test/trick_or_treater_test.rb

@@ -14,41 +14,41 @@ def test_wears_a_costume
   end
 
   def test_wears_a_different_costume
-    skip
+    # skip
     costume = Costume.new("Pony")
     trick_or_treater = TrickOrTreater.new(costume)
     assert_equal "Pony", trick_or_treater.dressed_up_as
   end
 
   def test_has_an_empty_bag_by_default
-    skip
+    # skip
     trick_or_treater = TrickOrTreater.new(Costume.new("Alien"))
     assert trick_or_treater.bag.empty?
   end
 
   def test_an_empty_bag_means_no_candy
-    skip
+    # skip
     trick_or_treater = TrickOrTreater.new(Costume.new("Knight"))
     refute trick_or_treater.has_candy?
   end
 
   def test_gets_candies
-    skip
+    # skip
     trick_or_treater = TrickOrTreater.new(Costume.new("Spaceship Mechanic"))
     trick_or_treater.bag << Candy.new("Gummy bears")
     assert trick_or_treater.has_candy?
   end
 
   def test_counts_candies
-    skip
+    # skip
     trick_or_treater = TrickOrTreater.new(Costume.new("Spaceship Mechanic"))
     assert_equal 0, trick_or_treater.candy_count
     trick_or_treater.bag << Candy.new("Gummy bears")
     assert_equal 1, trick_or_treater.candy_count
   end
 
   def test_eats_candies
-    skip
+    # skip
     trick_or_treater = TrickOrTreater.new(Costume.new("Baron"))
     trick_or_treater.bag << Candy.new("Gummy worms")
     trick_or_treater.bag << Candy.new("Liquorice")
@@ -62,4 +62,3 @@ def test_eats_candies
     assert_equal 0, trick_or_treater.candy_count
   end
 end
-