I''m trying to run the tests in chapter 12. My problem is, 
session_options is undefined. I also find it strange that two different 
versions of actionpack is being used, as the stack trace below 
indicates.
Test file: depot_testing/test/functional/login_controller_tests.rb
  def test_index_without_user
    get :index
    assert_redirected_to :action => "login"
    assert_equal "Please log in", flash[:notice]
  end
C:\svn_christer\rails\depot_testing>ruby 
test/functional/login_controller_test.r
b
Loaded suite test/functional/login_controller_test
Started
EEEE.
Finished in 1.222 seconds.
  1) Error:
test_index_without_user(LoginControllerTest):
NoMethodError: undefined method `session_options='' for 
#<ActionController::TestR
equest:0x3f86ea8>
    c:/ruby/lib/ruby/gems/1.8/gems/actionpack-1.10.2/lib/action_controller/sessi
on_management.rb:115:in `process''
    c:/ruby/lib/ruby/gems/1.8/gems/actionpack-1.5.1/lib/action_controller/test_p
rocess.rb:260:in `process''
    (eval):3:in `get''
    test/functional/login_controller_test.rb:35:in 
`test_index_without_user''
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