Unable to test model

Product.yml file is..

abcd:
  id: 1
  title: xyz
  description: Software Testing Engineer
  image_url: http://.../sk_svn_small.jpg
  price: 29.95
  date_available: 2005-01-26 00:00:00
automation_book:
  id: 2
  title: Pragmatic Project Automation
  description: How to automate your project
  image_url: http://.../sk_auto_small.jpg
  price: 29.95
  date_available: 2004-07-01 00:00:00
future_proof_book:
  id: 3
  title: Future-Proofing Your Tests
  description: How to beat the clock
  image_url: http://.../future.jpg
  price: 29.95
  date_available: 2005-04-27 00:00:00

and

product.rb file contains...

require File.dirname(__FILE__) + '/../test_helper'

class ProductTest < Test::Unit::TestCase
  fixtures :products
  def setup
      @product = Product.find(:all)
  end
  # Replace this with your real tests.
  def test_create
    assert_kind_of Product, @product
    assert_equal 1, @product.id
    assert_equal "xyz", @product.title
    assert_equal "Software Testing Engineer", @product.description
    assert_equal "http://.../sk_svn_small.jpg", @product.image_url
    assert_equal 29.95, @product.price
    assert_equal "2005-01-26 00:00:00",
                      @product.date_available_before_type_cast
  end
end

Last edited by bkchoudhary (2007-01-18 01:02:13)

I m getting an error which says that ....
RuntimeError: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id

The method in product_test.rb in which i am getting error is....

  def test_read_with_fixture_variable
    assert_kind_of Product, @product
    @product = Product.find(3)
    assert_equal @binod.id, @product.id
    assert_equal @binod.title, @product.title
    assert_equal @binod.description, @product.description
    assert_equal @binod.image_url, @product.image_url
    assert_equal @binod.price, @product.price
    assert_equal @binod.date_available, @product.date_available
  end

and my product.yml is mention above...

Is that I cant use instance directly..... as shown in the above post. if not then how to set the instance...