Preserve Whole Object.

preserve-whole-object/lib/after.rb

@@ -0,0 +1,29 @@
+class Item
+  attr_reader :name, :price, :date
+
+  def initialize name, price, date
+    @name = name
+    @price = price
+    @date = date
+  end
+end
+
+class Store
+  def initialize
+    @items = []
+  end
+
+  def contain? item
+    ! find(item).nil?
+  end
+
+  def <<(item)
+    @items << item
+  end
+
+  def find item
+    @items.find { |i| i.name  == item.name &&
+                      i.price == item.price &&
+                      i.date  == item.date }
+  end
+end

preserve-whole-object/test/test.rb

@@ -1,5 +1,5 @@
-require 'minitest/spec'
 require 'minitest/autorun'
+require 'minitest/spec'
 
 require 'before' if ENV["BEFORE"]
 require 'after' unless ENV["BEFORE"]
@@ -9,7 +9,13 @@
 
   subject { Store.new.tap { |store| store << item } }
 
-  it "finds an item in the store" do
-    subject.contain?(item_name,price,date).must_equal true
+  if ENV["BEFORE"]
+    it "finds an item in the store" do
+      subject.contain?(item.name,item.price,item.date).must_equal true
+    end
+  else
+    it "finds an item in the store" do
+      subject.contain?(item).must_equal true
+    end
   end
 end