Define oder_line, map out input options

lib/handle_input.rb

@@ -1,4 +1,5 @@
require_relative 'item'
require_relative 'order_line'

# HandleInput class
class HandleInput
@@ -12,5 +13,37 @@ def interpret(command)
    return unless ACTIONS.include?(command)

    $stdout.print "#{command} \n"

    if command == 'LIST'
      # list all availble items and package sizes
    end

    return shop if command == 'SHOP'

    if command == 'VIEW'
      # show invoice
    end

    if command == 'EXIT'
      # exit
    end
  end

  def shop
    # retrieve another input
    $stdout.print "Select qty and items, example: 3 watermelon \n"

    input = gets.chomp

    return if input.empty? #TODO: OR if it doesn't match a specific order pattern

    # break it down into qty, item
    line = input.split(/\W+/)

    # create the order_line
    order_line = OrderLine.new(line[0], line[1])

    # return the order line
    $stdout.print "#{order_line.order_qty} #{order_line.order_item} \n"
  end
end

lib/order_line.rb

@@ -0,0 +1,9 @@
# OrderLine class
class OrderLine
  attr_reader :order_qty, :order_item

  def initialize(order_qty, order_item)
    @order_qty = order_qty
    @order_item = order_item
  end
end

spec/order_line_spec.rb

@@ -0,0 +1,20 @@
require 'rspec'
require 'spec_helper'
require './lib/order_line'

describe OrderLine do
  describe '#initialize' do
    it 'should have a order_qty attribute which is an Integer' do
      instance = OrderLine.new(3, 'watermelon')

      expect(instance.order_qty).to be_a Integer
      expect(instance.order_qty).to eq 3
    end

    it 'should have a order_item attribute which is an instance of Item' do
      instance = OrderLine.new(3, Watermelon.new('watermelon'))

      expect(instance.order_item).to be_a Item
    end
  end
end