How do I test helpers in Rails?

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

describe FoosHelper do

  it "should do something" do
    helper.some_helper_method.should == @something
  end

end

require 'test_helper'

class YourHelperTest < ActionView::TestCase
  test "should work" do
    assert_equal "result", your_helper_method
  end
end

require File.dirname(__FILE__) + ‘/../test_helper’
require ‘user_helper’

class UserHelperTest < Test::Unit::TestCase

include UserHelper

def test_a_user_helper_method_here
end

end

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

describe FoosHelper do

  it "should do something" do
    helper.some_helper_method.should == @something
  end

end