for fixing capybara javascript test

Gemfile

# add these to your test group
group :test do
  gem 'capybara'
  gem 'poltergeist'
end

shared_db_connection.rb

#spec/support/shared_db_connection.rb

class ActiveRecord::Base
  mattr_accessor :shared_connection
  @@shared_connection = nil
 
  def self.connection
    @@shared_connection || retrieve_connection
  end
end
 
# Forces all threads to share the same connection. This works on
# Capybara because it starts the web server in a thread.
ActiveRecord::Base.shared_connection = ActiveRecord::Base.connection

spec_helper.rb

require 'capybara/poltergeist'

RSpec.configure do |config|
  # ...
  Capybara.javascript_driver = :poltergeist
  # ...
end