Cucumber via Envjs says "a.ownerDocument is null"

By: Johnathon Wright on: March 10, 2011

I recently received the following errors when running capybara with envjs. Strangely, there was a kind of double stack trace. Here are the exeptions:

=== WARNIING: [Thu Mar 10 2011 09:54:41 GMT-0600 (CST)] {ENVJS} Exception while dispatching events: a.ownerDocument is null

a.ownerDocument is null (Johnson::Error)

=== WARNIING: [Thu Mar 10 2011 09:54:41 GMT-0600 (CST)] {ENVJS} Exception while dispatching events: a.ownerDocument is null oopse a.ownerDocument is null undefined

inline:129 [JavaScript]

===diff

--- a/features/support/env.rb +++ b/features/support/env.rb @@ -1,4 +1,4 @@ -ENV["RAILSENV"] ||= "cucumber" +ENV["RAILSENV"] ||= "test"

require File.expandpath(File.dirname(FILE_) + '/../../config/environment')

@@ -20,7 +20,6 @@ require 'capybara/session' Capybara.default_selector = :css

require 'capybara/envjs' -Capybara.javascript_driver = :envjs

Before do

User.test = Factory.create(:user)

and for reference:

=== diff config/environments/test.rb config/environments/cucumber.rb

< config.gem 'factory_girl' < config.gem 'rspec', :lib => false < config.gem 'rspec-rails', :lib => false

< config.gem 'capybara-envjs', :lib => 'capybara/envjs'

config.gem 'capybara-envjs', :lib => 'capybara/envjs' config.gem 'factory_girl' config.gem 'cucumber', :lib => false config.gem 'cucumber-rails', :lib => false, :version => '>=0.3.2' unless File.directory?(File.join(Rails.root, 'vendor/plugins/cucumber-rails'))

config.gem 'databasecleaner', :lib => false, :version => '>=0.5.0' unless File.directory?(File.join(Rails.root, 'vendor/plugins/databasecleaner'))

my complete features/support/env.rb file:

ENV["RAILS_ENV"] ||= "test"

require File.expandpath(File.dirname(FILE_) + '/../../config/environment')

puts "========================================" puts "RAILSENV is #{RAILSENV} " puts "========================================"

require File.expandpath(File.dirname(FILE_) + '/../../test/helpers/user.rb')

require 'cucumber/formatter/unicode' # Remove this line if you don't want Cucumber Unicode support require 'cucumber/rails/world' require 'cucumber/rails/active_record' require 'cucumber/web/tableish'

require 'capybara/rails' require 'capybara/cucumber' require 'capybara/session'

Capybara.default_selector = :css

require 'capybara/envjs'

Before do User.test = Factory.create(:user) Given 'I am logged in'

System.destroy_all System.load end

ActionController::Base.allowrescue = false Cucumber::Rails::World.usetransactional_fixtures = true

if defined?(ActiveRecord::Base) begin require 'databasecleaner' DatabaseCleaner.strategy = :truncation rescue LoadError => ignoreifdatabasecleanernotpresent end

end

a = 3*(4/2); b = 1; a+b