RubySteps Lesson 010 - Refactoring - Legacy Code - excerpt

exercise_1a_legacy_1_spec.rb

require 'rspec'

class Order
  def initialize(customer_name)
    @customer_name = customer_name
    @items = []
  end

  def purchase(name, quantity, price)
    @items << {name: name, quantity: quantity, price: price}
  end

  def finalize
    @finalized_at = Time.now
  end

#   def print_receipt
#     lines = []
#     lines << "Purchase receipt for #{@customer_name}"
#     lines << "Time: #{@finalized_at}"
#
#     total = 0
#     @items.each do |i|
#       item_price = i[:price] * i[:quantity]
#       total += item_price
#
#       item_tax = item_price * 0.07
#       total_tax = total * 0.07
#
#       lines << "#{i[:name]}: #{i[:quantity]} @ $#{i[:price]}; $#{item_price}"
#     end
#
#     lines << "Total: $#{total}"
#
#     puts lines.join("\n")
#   end
end

describe Order, '#print_receipt' do
  let(:order) { Order.new 'Joe' }

  before do
    order.purchase 'shoes', 2, 15.0
    order.purchase 'shirt', 3, 12.0
    order.purchase 'hat', 1, 18.0
    order.finalize
    order.print_receipt
  end

  it "includes the customer's name"

  it "includes the time the order was finalized"

  it "includes a line item for each item purchased"

  it "includes the total price"
end