Wednesday, May 23, 2012

Cucumber remove Rack::Cache logging

I am using a cucumber and capybara-webkit in a project that uses Dragonfly.
When I used capybara-webkit I suddenly started getting some Rack::Cache debug log. Which looked like the following,

 @javascript
  Scenario: Save new event as draft                               # features/manage_events.feature:23
cache: [GET /user/sign_out] miss
cache: [GET /] miss
cache: [POST /user/sign_in] invalidate, pass
cache: [GET /events/new] miss
http://maps.gstatic.com/cat_js/intl/en_us/mapfiles/api-3/8/11/%7Bmain,geometry%7D.js|43|Warning: you have included the Google Maps API multiple times on this page. This may cause unexpected errors.
cache: [PUT /users/update_time_zone] invalidate, pass
cache: [GET /events/new] miss
http://maps.gstatic.com/cat_js/intl/en_us/mapfiles/api-3/8/11/%7Bmain,geometry%7D.js|43|Warning: you have included the Google Maps API multiple times on this page. This may cause unexpected errors.
cache: [PUT /users/update_time_zone] invalidate, pass
    When I fill in "Event Name" with "Event 1"                    # features/step_definitions/web_steps.rb:3
    And I fill in "Event Description" with "This is a test event" # features/step_definitions/web_steps.rb:3
    And I fill in "Event Venue" with "Dhaka, Bangladesh"          # features/step_definitions/web_steps.rb:3
    And I press "Search"                                          # features/step_definitions/web_steps.rb:7
cache: [GET /events/location_search?str=Dhaka,%20Bangladesh] miss
    And I fill in "Event Start date" with "2012-05-22"            # features/step_definitions/web_steps.rb:3
    And I fill in "Event End date" with "2012-05-23"              # features/step_definitions/web_steps.rb:3
    And I press "Save as draft"                                   # features/step_definitions/web_steps.rb:7
cache: [POST /events/4fbc72688621ff1a31000026] invalidate, pass
cache: [GET /my/events?p=false] miss
cache: [GET /assets/ui-bg_glass_65_ffffff_1x400.png] miss
cache: [GET /assets/bg.gif] miss
    Then I should see "Event was successfully updated."           # features/step_definitions/web_steps.rb:11
That log comes from the Rack::Cache which is used by Dragonfly. So you can add the following code snippet in the test.rb,
  require 'rack/cache'
  config.middleware.delete ::Rack::Cache
  rack_cache_already_inserted = Rails.application.config.action_controller.perform_caching && Rails.application.config.action_dispatch.rack_cache

  Rails.application.middleware.insert 0, Rack::Cache, {
      :verbose => false,
      :metastore => URI.encode("file:#{Rails.root}/tmp/dragonfly/cache/meta"), # URI encoded in case of spaces
      :entitystore => URI.encode("file:#{Rails.root}/tmp/dragonfly/cache/body")
  } unless rack_cache_already_inserted



References

Tuesday, May 22, 2012

Cucumber on rails

The purpose of this document is the following

  • Setup cucumber with rails
  • Define basic features
  • To test ajax response
The version for gems that are used to create the documents are,
  • cucumber (1.2.0)
  • cucumber-rails (1.3.0)

Setup

Cucumber-rails gem makes it easier to install cucumber in rails, but I faced some issues which I would like to document. The following is from the cucumber-rails document,
group :test do
  gem 'cucumber-rails', :require => false
  # database_cleaner is not required, but highly recommended
  gem 'database_cleaner'
  gem 'cucumber-rails-training-wheels'
  gem 'capybara'
  gem 'rspec-expectations'
  gem 'fabrication' #for test fixture creation
end
Then run,
bundle install
rails generate cucumber:install
This will generate the necessary file for cucumber.
  create  config/cucumber.yml
  create  script/cucumber
   chmod  script/cucumber
  create  features/step_definitions
  create  features/support
  create  features/support/env.rb
   exist  lib/tasks
  create  lib/tasks/cucumber.rake
If you are using mongo, then it should give you a warning that you can not use 'transaction' strategy for mongo. Then you can change that to 'truncation' in your 'features/support/env.rb' file. Change the env.rb as following,
DatabaseCleaner.strategy = :truncation
Now it is time to write some features to test. cucumber-rails-training-wheels gem help you with generators, so that you can generate features quickly. To generate use the command as follows,
rails generate cucumber_rails_training_wheels:feature post title:string body:text number:integer published:boolean
With this plug-in you can generate cucumber feature when you are using scaffold generator. For details please see the reference.
I am working on a sample cucumber project that can facilitate newbies to get started with cucumber and get to know the best practices. Any contribution is very welcome.

Global fixture setup and tear down

If you have some global data that is needed to be loaded for every test then you can use cucumber hooks. You can create the fixtures that you always need, for an example users for login or initialize admin global settings.

Reference

Wednesday, May 2, 2012

Parameterizing translation files in rails I18n

In en.yml,

delete_confirm_with_title: 'Are you sure, you want to delete "%{title}"?'

In erb
<%= link_to 'X', resource, confirm: t('delete_confirm_with_title', {:title => resource.name}), method: :delete %>