Testing scopes with RSPEC

item_spec.rb

require 'rails_helper'

RSpec.describe Item, :type => :model do
  before(:each) do
    @purchased_item = Item.create(
      :name => "Item1",
      :qty => 1,
      :is_purchased => true
    )
    
    @unpurchased_item = Item.create(
      :name => "Item2",
      :qty => 1,
      :is_purchased => false
    )    
  end

  it "displays only purchased items in ':purchased' scope" do 
  	expect(Item.purchased).to include(@purchased_item) 
  	expect(Item.purchased).not_to include(@unpurchased_item) 
  end

  it "displays only unpurchased items in ':not_purchased' scope" do 
  	expect(Item.not_purchased).to include(@unpurchased_item) 
  	expect(Item.not_purchased).not_to include(@purchased_item) 
  end

end