Luigi Ray-Montañez luigi

Testing front-end for a Sinatra app with RSpec and Capybara

I've used Cucumber quite a bit on my last job. It's an excellent tool, and I believe readable tests are the way to the future. But I could never get around to write effective scenarios, or maintain the boatload of text that the suite becomes once you get to a point where you have decent coverage. On top of that, it didn't seem to take much for the suite to become really slow as tests were added.

A while ago I've seen a gist by Lachie Cox where he shows how to use RSpec and Capybara to do front-end tests. That sounded perfect for me. I love RSpec, I can write my own matchers when I need them with little code, and it reads damn nicely.

So for my Rails Rumble 2010 project, as usual, I rolled a Sinatra app and figured I should give the idea a shot. Below are my findings.

Gemfile

Sass/Less Comparison

In this document I am using Sass's SCSS syntax. You can choose to use the indented syntax in sass, if you prefer it, it has no functional differences from the SCSS syntax.

For Less, I'm using the JavaScript version because this is what they suggest on the website. The ruby version may be different.

Variables

Continuous CoffeeScript testing with Guard and Jasmine

This Gist shows how to set up a Rails project to practice BDD with CoffeeScript, Guard and Jasmine. You can see this setup in action on Vimeo

Install Gems with Bundler with bundle install
Define your guards with mate Guardfile
Initialize Jasmine with bundle exec jasmine init
Configure Jasmine with mate spec/support/yasmine.ym
Start Guard with bundle exec guard

JS Conf slides - 2011

Track A

Bytes and Blobs by David Flanagan
Conference Wifi Redux by Malte Ubi
Sashimi - https://github.com/cramforce/Sashimi
Run Your JS everywhere with Jellyfish by Adam Christian - http://jelly.io Project
Fighting Crime and Kicking Apps with Batman.js by Nick Small
Hello Jo by Dave Balmer - Project - http://joapp.com

Railties 3.1 RC4

The new rake task assets:clean removes precompiled assets. [fxn]
Application and plugin generation run bundle install unless --skip-gemfile or --skip-bundle. [fxn]
Fixed database tasks for jdbc* adapters #jruby [Rashmi Yadav]
Template generation for jdbcpostgresql #jruby [Vishnu Atrai]

	# Patch to support customized request headers in your Capybara tests
	# when you're using the RackTest driver, based on an Aslak Hellesøy's gist:
	# https://gist.github.com/358664
	#
	# Please note that some drivers don't allow access to headers, see:
	# https://github.com/jnicklas/capybara/issuesearch?state=closed&q=header#issue/17

	class Capybara::Driver::RackTest < Capybara::Driver::Base

	def env

	def tip(msg); puts; puts msg; puts "-"*100; end

	#
	# 30 Ruby 1.9 Tips, Tricks & Features:
	# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
	#

	tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

	tip "Ruby 1.9 supports named captures in regular expressions!"

	PADRINO_ENV = 'test' unless defined?(PADRINO_ENV)

	require 'rubygems'
	require 'spork'

	Spork.prefork do
	# Loading more in this block will cause your tests to run faster. However,
	# if you change any configuration or code from libraries loaded here, you'll
	# need to restart spork for it take effect.

	set :unicorn_pid, "#{current_path}/tmp/pids/unicorn.pid"

	namespace :unicorn do
	desc "start unicorn"
	task :start, :roles => :app, :except => { :no_release => true } do
	run "cd #{current_path} && #{try_sudo} bundle exec unicorn_rails -c #{current_path}/config/unicorn-#{rails_env}.rb -E #{rails_env} -D"
	end
	desc "stop unicorn"
	task :stop, :roles => :app, :except => { :no_release => true } do
	run "#{try_sudo} kill `cat #{unicorn_pid}`"

	var tls = require('tls');
	var fs = require('fs');
	var Buffer = require('buffer').Buffer;
	var zlib = require('zlib');
	var BufferList = require('bufferlist');
	var Binary = require('bufferlist/binary');
	var Put = require('put');
	var http = require('http');

	var options =