validates_acceptance_of deep failure ?

Hi

It looks like validates_acceptance_of doesn't work wether it uses a db column or just a regular instance attribute.

$ rails test ; cd test
$ ./script/generate model User name:string terms_of_service:boolean
$ ./script/generate model Person name:string
$ rake db:migrate

class User < ActiveRecord::Base
  validates_acceptance_of :terms_of_service
end

class Person < ActiveRecord::Base
  attr_accessor :terms_of_service
  validates_acceptance_of :terms_of_service
end

class UserTest < ActiveSupport::TestCase
  def test_new_user_be_valid_since_boolean_is_nil
    assert_valid User.new(:name => "Mister New")
  end

  def test_nice_user_should_be_valid
    assert_valid User.new(:name => "Mister Yes", :terms_of_service => true)
  end

  def test_bad_user_should_not_be_valid
    user = User.create(:name => "Mister No", :terms_of_service => false)
    assert_equal user.errors.on(:terms_of_service), "must be accepted"
  end
end

class PersonTest < ActiveSupport::TestCase
  def test_new_person_be_valid_since_boolean_is_nil
    assert_valid Person.new(:name => "Mister New")
  end

  def test_nice_person_should_be_valid
    assert_valid Person.new(:name => "Mister Yes", :terms_of_service => true)
  end

  def test_bad_person_should_not_be_valid
    person = Person.create(:name => "Mister No", :terms_of_service => false)
    assert_equal person.errors.on(:terms_of_service), "must be accepted"
  end
end

$ rake
(in /Users/jerome/tmp/test)
/opt/local/bin/ruby -Ilib:test "/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake/rake_test_loader.rb" "test/unit/person_test.rb" "test/unit/user_test.rb" 
Loaded suite /opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake/rake_test_loader
Started
..F..F
Finished in 0.327487 seconds.

  1) Failure:
test_nice_person_should_be_valid(PersonTest)
    [./test/unit/person_test.rb:9:in `test_nice_person_should_be_valid'
     /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/testing/setup_and_teardown.rb:33:in `__send__'
     /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/testing/setup_and_teardown.rb:33:in `run']:
Terms of service must be accepted.
<false> is not true.

  2) Failure:
test_nice_user_should_be_valid(UserTest)
    [./test/unit/user_test.rb:9:in `test_nice_user_should_be_valid'
     /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/testing/setup_and_teardown.rb:33:in `__send__'
     /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/testing/setup_and_teardown.rb:33:in `run']:
Terms of service must be accepted.
<false> is not true.

6 tests, 6 assertions, 2 failures, 0 errors
/opt/local/bin/ruby -Ilib:test "/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake/rake_test_loader.rb"  
/opt/local/bin/ruby -Ilib:test "/opt/local/lib/ruby/gems/1.8/gems/rake-0.8.1/lib/rake/rake_test_loader.rb"