delivery cost added

lib/checkout.rb

@@ -15,12 +15,15 @@ def scan(item)
 
   def total
     price = 0
+    delivery_price = 0
     basket.each do |product|
       product_quantity = quantity_in_basket(product.code)
       price += discount_manager.discount_price_for(product, quantity_in_basket(product.code))
+      delivery_price += product_quantity * product.del_price
     end
 
     result = discount_manager.discount_total(price)
+    result += delivery_price
     result.round(2)
   end
 

lib/product.rb

@@ -1,9 +1,10 @@
 class Product
-  attr_reader :code, :name, :price
+  attr_reader :code, :name, :price, :del_price
 
-  def initialize(code, name, price)
+  def initialize(code, name, price, del_price)
     @code = code
     @name = name
     @price = price
+    @del_price = del_price
   end
 end

spec/checkout_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe Checkout do
-  ProductStub = Struct.new(:code, :name, :price)
+  ProductStub = Struct.new(:code, :name, :price, :del_price)
   subject { Checkout.new }
 
   describe "on setup" do
@@ -15,19 +15,19 @@
 
   context 'with no promo_rules' do
     describe 'scan items' do
-      let(:product1) { ProductStub.new('001', 'name', 10) }
-      let(:product2) { ProductStub.new('002', 'here', 10) }
+      let(:product1) { ProductStub.new('001', 'name', 10, 5.00) }
+      let(:product2) { ProductStub.new('002', 'here', 10, 5.00) }
 
-      it 'should calculate total as the product price' do
+      it 'should calculate total as the product price plus delivery price' do
         subject.scan(product1)
         subject.scan(product2)
-        expect(subject.total).to eq(20)
+        expect(subject.total).to eq(30)
       end
 
       it 'should round total to two decimal places' do
-        product = ProductStub.new('001', 'name', 25.4552)
+        product = ProductStub.new('001', 'name', 25.4552, 5.00)
         subject.scan(product)
-        expect(subject.total).to eq(25.46)
+        expect(subject.total).to eq(30.46)
       end
     end
   end

spec/product_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe Product do
-  subject { Product.new('001', 'cheap chair', 9.25) }
+  subject { Product.new('001', 'cheap chair', 9.25, 5.00) }
 
   it 'should return correct product code' do
     expect(subject.code).to eq('001')
@@ -14,4 +14,8 @@
   it 'should return correct price' do
     expect(subject.price).to eq(9.25)
   end
+
+  it 'should return del_price' do
+    expect(subject.del_price).to eq(5.00)
+  end
 end

vinterior.gemspec

@@ -9,14 +9,14 @@ Gem::Specification.new do |spec|
   spec.authors       = ["maxmills"]
   spec.email         = ["[email protected]"]
 
-  spec.summary       = %q{TODO: Write a short summary, because Rubygems requires one.}
-  spec.description   = %q{TODO: Write a longer description or delete this line.}
-  spec.homepage      = "TODO: Put your gem's website or public repo URL here."
+  spec.summary       = %q{Write a short summary, because Rubygems requires one.}
+  spec.description   = %q{Write a longer description or delete this line.}
+  spec.homepage      = "https://rubygems.org/gems/example"
 
   # Prevent pushing this gem to RubyGems.org by setting 'allowed_push_host', or
   # delete this section to allow pushing this gem to any host.
   if spec.respond_to?(:metadata)
-    spec.metadata['allowed_push_host'] = "TODO: Set to 'http://mygemserver.com'"
+    spec.metadata['allowed_push_host'] = "http://mygemserver.com'"
   else
     raise "RubyGems 2.0 or newer is required to protect against public gem pushes."
   end