Capybara::Webkit::InvalidResponseError: Javascript failed to execute - ruby-on-rails

Question

I converted an app from Rails 3.2 to 4.2 that was using the cancan gem. Googling around and checking on their github says it's enought to just replace gem cancan with gem cancancan without changing anything. This doesn't seem to work. My test fails:
Failures:
1) Redactable fields Manual redaction Redacting selected text in body
Failure/Error:
page.execute_script <<-EOS
document.getElementById('notice_#{#name}').focus();
document.getElementById('notice_#{#name}').select();
EOS
Capybara::Webkit::InvalidResponseError:
Javascript failed to execute
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-webkit-1.11.1/lib/capybara/webkit/browser.rb:305:in `check'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-webkit-1.11.1/lib/capybara/webkit/browser.rb:211:in `command'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-webkit-1.11.1/lib/capybara/webkit/browser.rb:232:in `execute_script'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-webkit-1.11.1/lib/capybara/webkit/driver.rb:80:in `execute_script'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-2.7.1/lib/capybara/session.rb:524:in `execute_script'
# ./spec/support/page_objects/redactable_field_on_page.rb:15:in `select'
# ./spec/support/page_objects/redactable_field_on_page.rb:22:in `select_and_redact'
# ./spec/integration/redaction_spec.rb:37:in `block (4 levels) in <top (required)>'
2) Redactable fields Manual redaction Restoring body from original
Failure/Error: page.find("#notice_#{#name}").click
Capybara::ElementNotFound:
Unable to find css "#notice_body"
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-2.7.1/lib/capybara/node/finders.rb:44:in `block in find'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-2.7.1/lib/capybara/node/base.rb:85:in `synchronize'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-2.7.1/lib/capybara/node/finders.rb:33:in `find'
# /Users/siaw23/.rvm/gems/ruby-2.1.9/gems/capybara-2.7.1/lib/capybara/session.rb:699:in `block (2 levels) in <class:Session>'
# ./spec/support/page_objects/redactable_field_on_page.rb:9:in `unredact'
# ./spec/integration/redaction_spec.rb:46:in `block (4 levels) in <top (required)>'
The elements being searched for can be reached manually after loggin in. This means neither cancancan nor cancan successfully applies :admin permission to my user that's created in the test. I used You are not authorized to access this page. and I get "You are not authorized to access this page."
The spec itself looks like this:
require 'rails_helper'
require 'support/notice_actions'
#lots of irrelevant code
private
def visit_redact_notice
user = create(:user, :admin)
visit '/users/sign_in'
fill_in "Email", with: user.email
fill_in "Password", with: user.password
click_on "Log in"
notice = create(:dmca, :redactable)
visit "/admin/notice/#{notice.id}/redact_notice"
notice
end
end
end
end
The visit_redact_notice method in the above spec is where everything is happening. I need help :). This is my repo if it might help: https://github.com/siaw23/lumendatabase
ability.rb
class Ability
include CanCan::Ability
def initialize(user)
return unless user
if user.has_role?(Role.submitter)
can :submit, Notice
end
if user.has_role?(Role.redactor)
grant_admin_access
grant_redact
end
if user.has_role?(Role.publisher)
grant_admin_access
grant_redact
can :publish, Notice
end
if user.has_role?(Role.admin)
grant_admin_access
grant_redact
can :edit, :all
cannot :edit, [User, Role]
can :publish, Notice
can :rescind, Notice
can :pdf_requests, :all
end
if user.has_role?(Role.super_admin)
can :manage, :all
end
if user.has_role?(Role.researcher)
can :read, Notice
end
end
def grant_admin_access
can :read, :all
can :access, :rails_admin
can :dashboard
can :search, Entity
can :access, :original_files
end
def grant_redact
can :edit, Notice
can :redact_notice, Notice
can :redact_queue, Notice
end
end

Answer 1

A couple issues you might want to check out...
There's a new version of Devise out that allows authentication via feature / integration tests. I've always spent hours debugging actually getting step-by-step login functionality to work. With Devise 4.2, logging in via integration tests is now supported. You'll have to make some changes to the RSpec configuration for Devise, as noted in the documentation above for the sign_in method to work.
If at this point logging in as an admin still does not work, I would check to see if your RSpec configuration has use_transactional_fixtures set to true. If it does, I would strongly encourage you to let the database_cleaner gem manage your test database, and set use_transactional_fixtures to false.
One or both of those should get you around your authentication issue. My guess is that it's most likely an issue with the transactional fixtures, as Rails is likely cleaning up a transaction before you're fully authenticated (thus why I'd suspect #1 above won't work).