Setup Factory Girl with Test::Unit and Shoulda

I'm trying to set up Factory Girl with Test::Unit and Shoulda in Ruby on Rails. I have installed the gem, created my factory file under the test/factories directory, and created my spec file under the test/models directory. The current error I'm getting is 'ArgumentError: No such factory: test', which leads me to believe that the test_factory.rb file is not being loaded? Any idea as to what I should change?

Here are my files.

#test/factories/test_factory.rb
Factory.define :test do |t|  
  t.name 'test_spotlight'  
  t.label 'test spotlight label'  
end

and

#test/modes/test_spec.rb
require 'test_helper'
require 'factory_girl'
class TestTest < Test::Unit::TestCase
  def setup
    @test = Factory.build(:test)
  end

  context "A test" do
    should "save with the minimum requirements" do
      assert @test.save
    end
  end 
end