Rails - Dec 2011 - ActionMailer: Test failed but works in development environment

http://stackoverflow.com/questions/8339957/actionmailer-test-failed-but-works-in-development-environment

The ActionMailer in my Rails 3.1 project has an odd behavior, the
ActionMailer::Base.deliveries is empty in test while I can actually receive the
email by running the code in rails console. Anybody can points out what wrong it
is?

# spec/mailers/user_mailer_spec.rb
require "spec_helper"

describe UserMailer do
  describe ".reminding_email" do
    subject { UserMailer.reminding_email(user).deliver }
    let(:user) { create :confirmed_user_with_mass_tasks }
    it "should be delivered" do
      ActionMailer::Base.deliveries.should_not be_empty
    end
    its(:to) { should == [user.email] }
    its(:subject) { should == "Task Reminding" }
  end
end

# app/mailers/user_mailer.rb
class UserMailer < ActionMailer::Base
  layout "email"
  default from: Rails.env.production? ? "<production>@gmail.com"
: "<test>@gmail.com"
  def reminding_email(user)
    @tasks = user.tasks.reminding_required
    @current = Time.current
    mail(to: user.email, subject: "Task Reminding")
  end
end
Failures:

1) UserMailer.reminding_email should be delivered Failure/Error:
ActionMailer::Base.deliveries.should_not be_empty expected empty? to return
false, got true # ./spec/mailers/user_mailer_spec.rb:8:in `block (3 levels) in
''

Finished in 11.81 seconds 42 examples, 1 failure, 2 pending

# config/environments/test.rb
RemindersForMe::Application.configure do
  # Settings specified here will take precedence over those in
config/application.rb

  # The test environment is used exclusively to run your application''s
  # test suite.  You never need to work with it otherwise.  Remember that
  # your test database is "scratch space" for the test suite and is
wiped
  # and recreated between test runs.  Don''t rely on the data there!
  config.cache_classes = true

  # Configure static asset server for tests with Cache-Control for performance
  config.serve_static_assets = true
  config.static_cache_control = "public, max-age=3600"

  # Log error messages when you accidentally call methods on nil
  config.whiny_nils = true

  # Show full error reports and disable caching
  config.consider_all_requests_local       = true
  config.action_controller.perform_caching = false

  # Raise exceptions instead of rendering exception templates
  config.action_dispatch.show_exceptions = false

  # Disable request forgery protection in test environment
  config.action_controller.allow_forgery_protection    = false

  # Tell Action Mailer not to deliver emails to the real world.
  # The :test delivery method accumulates sent emails in the
  # ActionMailer::Base.deliveries array.
  config.action_mailer.delivery_method = :test

  # Use SQL instead of Active Record''s schema dumper when creating the
test database.
  # This is necessary if your schema can''t be completely dumped by the
schema dumper,
  # like if you have constraints or database-specific column types
  # config.active_record.schema_format = :sql

  # Print deprecation notices to the stderr
  config.active_support.deprecation = :stderr

  # Setup default URL options as devise needed
  config.action_mailer.default_url_options = { :host =>
''localhost:3000'' }
end
Application:

# config/application.rb
require File.expand_path(''../boot'', __FILE__)

# Pick the frameworks you want:
require "active_record/railtie"
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
require "sprockets/railtie"
# require "rails/test_unit/railtie"

if defined?(Bundler)
  # If you precompile assets before deploying to production, use this line
  # Bundler.require(*Rails.groups(:assets => %w(development test)))
  Bundler.require *Rails.groups(:assets) if defined?(Bundler)
  # If you want your assets lazily compiled in production, use this line
  # Bundler.require(:default, :assets, Rails.env)
end

module RemindersForMe
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified
here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Custom directories with classes and modules you want to be autoloadable.
    # config.autoload_paths += %W(#{config.root}/extras)

    # Only load the plugins named here, in the order given (default is
alphabetical).
    # :all can be used as a placeholder for all plugins not explicitly named.
    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]

    # Activate observers that should always be running.
    # config.active_record.observers = :cacher, :garbage_collector,
:forum_observer

    # Set Time.zone default to the specified zone and make Active Record
auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone
names. Default is UTC.
    # config.time_zone = ''Central Time (US & Canada)''

    # The default locale is :en and all translations from
config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join(''my'',
''locales'', ''*.{rb,yml}'').to_s]
    # config.i18n.default_locale = :de

    # Configure the default encoding used in templates for Ruby 1.9.
    config.encoding = "utf-8"

    # Configure sensitive parameters which will be filtered from the log file.
    config.filter_parameters += [:password]

    # Enable the asset pipeline
    config.assets.enabled = true

    # Version of your assets, change this if you want to expire all your assets
    config.assets.version = ''1.0''

    # Set Rspec generator as default
    config.generators do |g|
      g.test_framework :rspec
    end

    # Set Mailer of Devise
    config.to_prepare do
      Devise::Mailer.layout "email"
    end
  end
end


Best regards,
Zhi-Qiang Lei
zhiqiang.lei-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

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On Dec 1, 3:14 pm, Zhi-Qiang Lei
<zhiqiang....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> http://stackoverflow.com/questions/8339957/actionmailer-test-failed-b...
>
> The ActionMailer in my Rails 3.1 project has an odd behavior, the
ActionMailer::Base.deliveries is empty in test while I can actually receive the
email by running the code in rails console. Anybody can points out what wrong it
is?
>
> # spec/mailers/user_mailer_spec.rb
> require "spec_helper"
>
> describe UserMailer do
>   describe ".reminding_email" do
>     subject { UserMailer.reminding_email(user).deliver }
>     let(:user) { create :confirmed_user_with_mass_tasks }
>     it "should be delivered" do
>       ActionMailer::Base.deliveries.should_not be_empty
>     end
IIRC subject is evaluated lazily, so in this example
UserMailer.reminding_email(user).deliver wouldn''t be called at all

Fred
>     its(:to) { should == [user.email] }
>     its(:subject) { should == "Task Reminding" }
>   end
> end
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