Posts Tagged ‘rails’

Adding additional configuration args to selenium rc using cucumber and webrat

Posted in Programming on February 25th, 2010 by Rob – Be the first to comment

I use cucumber, webrat and selenium RC a lot day to day, all are great pieces of kit, which make my life so much easier, but I’m always trying to find ways to make these ever easier.
Selenium RC has alot of options which are settable when booting the selenium-server java application.
Many of these options are not available when using selenium with cucumber and webrat.

I have raised an issue for webrat and produced a patch that enables you to pass additional arguments during the setup of your webrat instance, these are then passed on to the Selenium RC startup command.

Until this is prioritised and added to the webrat core, I have an on-the-fly solution that enables the additional args, the following code should be added to your `env.rb`

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module Webrat
  class Configuration
    attr_accessor :selenium_additional_args
  end
end

module AdditionalArgs  
  def self.included(base)
    base.alias_method_chain :start, :additional_args
  end
   
  def start_with_additional_args
    remote_control.additional_args = Webrat.configuration.selenium_additional_args
    start_without_additional_args
  end
end

Webrat.configure do |config|  
  ...  
  config.selenium_additional_args = ["-firefoxProfileTemplate '../../Library/Application Support/Firefox/Profiles/selenium'", "-singleWindow"]
  ...
end

Webrat::Selenium::SeleniumRCServer.send(:include, AdditionalArgs)

Testing ActionMailer models with Rspec

Posted in Programming on December 14th, 2009 by Rob – Be the first to comment

You might think testing ActionMailer sounds like a challenge, actually it’s just as easy as testing other classes, you just have to know the methods to use to change the state/content of the deliveries.

Here we have a simple example of how you might test a mailer for your order receipt

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require File.dirname(__FILE__) + '/../spec_helper'

describe OrderMailer do
 
  describe "receipt" do
 
    before(:each) do
      @order = mock_model(Order)
      @order.customer = mock_model(Customer)
    end
 
    it "should render successfully" do
      lambda { OrderMailer.create_receipt(@order) }.should_not raise_error
    end
 
    describe "rendered without error" do
   
      before(:each) do
        @mailer = OrderMailer.create_receipt(@order)
      end
   
      it "should have an order number" do
        @mailer.body.should have_tag('.order_number', :text => @order.id)
      end
   
      it "should have order details" do
        @mailer.body.should have_tag(".order_details")
      end
 
      it "should have a billing address" do
        @mailer.body.should have_tag(".billing.address")
      end
   
      it "should have a delivery address" do
        @mailer.body.should have_tag(".delivery.address")
      end
 
      it "should have customer contact details" do
        @mailer.body.should have_tag("#contact_details") do
          with_tag('.landline', :text => @order.customer.landline)
          with_tag('.mobile', :text => @order.customer.mobile)
          with_tag('.email', :text => @order.customer.email)
        end
      end
 
      it "should have a list of items" do
        @mailer.body.should have_tag(".line_items")
      end
 
      it "should have totals" do
        @mailer.body.should have_tag(".totals") do
          with_tag('.sub_total', :text => format_price(@order.sub_total))
          with_tag('.vat', :text => format_price(@order.vat))
          with_tag('.postage', :text => format_price(@order.postage))
          with_tag('.total', :text => format_price(@order.total))
        end
      end
     
      it "should deliver successfully" do
        lambda { OrderMailer.deliver(@mailer) }.should_not raise_error
      end
     
      describe "and delivered" do
       
        it "should be added to the delivery queue" do
          lambda { OrderMailer.deliver(@mailer) }.should change(ActionMailer::Base.deliveries,:size).by(1)
        end
       
      end
   
    end

  end
 
end

rendering the following output:

ActionMailer test output from textmate rspec bundle

ActionMailer test output from textmate rspec bundle

Custom log files for your ruby on rails applications

Posted in Programming on January 14th, 2009 by Rob – 1 Comment

Sometimes logging is required but putting the messages in the Rails log isn’t the answer.For example you need to see the progress of customers through your order placement cycle, you ideally need this seperate to any other in a custom log file?

There is a solution and it’s easy… To create an order progress log, simply create a new instance of Logger and pass it a File instance for your own logfile.
Create a new model which inherits from Logger

class OrderProgressLogger < Logger
  def format_message(severity, timestamp, progname, msg)
  "#{timestamp.to_formatted_s(:db)} #{severity} #{msg}\n"
  end
end

Create initializer called logs.rb in RAILS_ROOT/config/initializers with the following content:

order_progress_logfile = File.open("#{RAILS_ROOT}/log/order_progress.log", 'a')
order_progress_logfile.sync = true
ORDER_PROGRESS_LOG = OrderProcessLogger.new(order_progress_logfile)

After a restart of your mongrel or passenger ORDER_PROGRESS_LOG will be available through out your application.
You log to it just as you would DEFAULT_RAILS_LOGGER like so…

ORDER_PROGRESS_LOG.debug "Starting order placement method"
ORDER_PROGRESS_LOG.error "Could not create order record"