Task G - AGWDWR

Model:

class Order < ActiveRecord::Base
  has_many :line_items, :dependent => :destroy
  
  # PAYMENT_TYPES = ["Check", "Credit card", "Purchase order"]
  belongs_to :payment_type
  
  validates :name, :address, :email, :presence => true
  validates_inclusion_of :payment_type_id, :in => PaymentType.all.map { |type| type.id }, :message => "- Invalid payment type selected"
  
  
  def add_line_items_from_cart(cart)
    cart.line_items.each do |item|
      item.cart_id = nil
      line_items << item
    end
  end
end



Unit Test:

require 'test_helper'

class OrderTest < ActiveSupport::TestCase
  fixtures :orders
  fixtures :payment_types
  
  setup do
    @order = orders(:two)
  end
  
  test "order attributes must not be empty" do
    order = Order.new
    assert order.invalid?
    [:name, :address, :email, :payment_type_id].each do |sym|
      assert order.errors[sym].any?
    end
    
    # test fixture values
    File.open(File.join(Rails.root, 'out.txt'), 'w+') do |file|
      @order.errors.each_full {|msg| file.write "#{msg}\n"}
    end
    
    assert_equal @order.payment_type_id, payment_types(:check).id
    assert_not_equal @order.name, ''
    assert_not_equal @order.address, ''
    assert_not_equal @order.email, ''
    assert @order.valid?
  end
end


Fixtures:
# orders.yml

one:
  name: Dave Thomas
  address: MyText
  email: dave@example.org
  payment_type: check

two:
  name: MyString
  address: MyText
  email: MyString
  payment_type: check


#payment_types.yml

check:
  name: Pay Check
# column: value
#
creditcard: 
  name: Credit Card
#  column: value