refactoring using let, subject and its

eason_book_spec_after.rb

require 'spec_helper'

describe EasonBook do
  describe ".load!" do
    let(:house_at_riverton_item) { Item.find_by_barcode(9780330448444) }
    let(:house_at_riverton) { EasonBook.find(9780330448444) }
    
    before(:each) do
      # set a category mapping
      CategoryMapping.create!({:system_name => 'eason',
                               :system_code => "FAZ",
                               :category_id => 1})
      
      # loading EASONWWW.TXT from data_feed/test/today/eason/
      EasonBook.load!
    end

    describe "loaded book" do
      subject { house_at_riverton }
      it { should_not be_nil }
      its(:title) { should == "House at Riverton" }
      its(:author) { should == "Morton Kate"}
    end
    
    describe "loaded item" do
      subject { house_at_riverton_item }
      it { should have(1).category_memberships }
      
      it "should set up category memberships" do
        house_at_riverton_item.category_memberships.first.category_id.should == 1
      end
    end
    
    it "should load the items table" do
      Item.count.should == 14
    end
  end
end

eason_book_spec_before.rb

require 'spec_helper'

describe EasonBook do
  describe ".load!" do
    let(:house_at_riverton_item) { Item.find_by_barcode(9780330448444) }
    let(:house_at_riverton) { EasonBook.find(9780330448444) }
    
    before(:each) do
      # set a category mapping
      CategoryMapping.create!({:system_name => 'eason',
                               :system_code => "FAZ",
                               :category_id => 1})
      
      # loading EASONWWW.TXT from data_feed/test/today/eason/
      EasonBook.load!
    end
    
    it "should load the eason_books table" do
      house_at_riverton.should_not be_nil
    end
    
    it "should set the title" do
      house_at_riverton.title.should == "House at Riverton"
    end

    it "should set the title" do
      house_at_riverton.author.should == "Morton Kate"
    end
    
    it "should load the items table" do
      Item.count.should == 14
    end
    
    it "should set up category memberships" do
      house_at_riverton_item.should have(1).category_memberships
      house_at_riverton_item.category_memberships.first.category_id.should == 1
    end
  end
end