zhengjia

=Navigating=
    visit('/projects')
    visit(post_comments_path(post))

=Clicking links and buttons=
    click_link('id-of-link')
    click_link('Link Text')
    click_button('Save')
    click('Link Text') # Click either a link or a button
    click('Button Value')

jcasimir

Render and Redirect

The normal controller/view flow is to display a view template corresponding to the current controller action, but sometimes we want to change that. We use render in a controller when we want to respond within the current request, and redirect_to when we want to spawn a new request.

Render

The render method is very overloaded in Rails. Most developers encounter it within the view template, using render :partial => 'form' or render @post.comments, but here we'll focus on usage within the controller.

:action

mattwynne

# usage:
# it "should return a result of 5" do
#   eventually { long_running_thing.result.should eq(5) }
# end
module AsyncHelper
  def eventually(:options = {})
    timeout = options[:timeout] || 2
    interval = options[:interval] || 0.1
    time_limit = Time.now + timeout
    loop do

barmstrong

class ZendeskTicketsJob
  extend Resque::Plugins::ExponentialBackoff
  @queue = :low
  FIELDS = ['zendesk_id', 'requester_id', 'assignee_id', 'group', 'subject', 'tags', 'status', 'priority', 'via', 'ticket_type', 'created_at', 'assigned_at', 'solved_at', 'resolution_time', 'satisfaction', 'group_stations', 'assignee_stations', 'reopens', 'replies', 'first_reply_time_in_minutes', 'first_reply_time_in_minutes_within_business_hours', 'first_resolution_time_in_minutes', 'first_resolution_time_in_minutes_within_business_hours', 'full_resolution_time_in_minutes', 'full_resolution_time_in_minutes_within_business_hours', 'agent_wait_time_in_minutes', 'agent_wait_time_in_minutes_within_business_hours', 'requester_wait_time_in_minutes', 'requester_wait_time_in_minutes_within_business_hours', 'reservation_code', 'requires_manual_closing']

  def self.perform(url)
    `rm /tmp/zendesk_tickets*`
    `wget #{url} -O /tmp/zendesk_tickets.csv.zip`
    `unzip -p /tmp/zendesk_tickets.csv.zip > /tmp/zendesk_tickets.csv`
    

tokland

require 'active_record'
require 'arel'

# Ruby-like syntax in AR conditions using the underlying Arel layer (Rails >= 3.0).
#
# What you would usually write like this: 
#
#   User.where(["users.created_at > ? AND users.name LIKE ?", Date.yesterday, "Mary"])
#
# can now be written like this (note those parentheses required by the operators precedences):

copiousfreetime

#!/usr/bin/env ruby

require 'csv'

# This assumes:
#   - Ruby 1.9's CSV library, if you are using 1.8, use FasterCSV.
#

# https://raw.github.com/hadley/data-baby-names/master/baby-names.csv
csv_fname = "baby-names.csv"

mislav

dupuy

Markdown and reStructuredText

GitHub supports several lightweight markup languages for documentation; the most popular ones (generally, not just at GitHub) are Markdown and reStructuredText. Markdown is sometimes considered easier to use, and is often preferred when the purpose is simply to generate HTML. On the other hand, reStructuredText is more extensible and powerful, with native support (not just embedded HTML) for tables, as well as things like automatic generation of tables of contents.

ordinaryzelig

I'm a fan of MiniTest::Spec. It strikes a nice balance between the simplicity of TestUnit and the readable syntax of RSpec. When I first switched from RSpec to MiniTest::Spec, one thing I was worried I would miss was the ability to add matchers. (A note in terminology: "matchers" in MiniTest::Spec refer to something completely different than "matchers" in RSpec. I won't get into it, but from now on, let's use the proper term: "expectations").

Understanding MiniTest::Expectations

Let's take a look in the code (I'm specifically referring to the gem, not the standard library that's built into Ruby 1.9):

# minitest/spec.rb

module MiniTest::Expectations

peterhellberg

source :rubygems

gem "sinatra", "~> 1.3.2"

group :test do
  gem "minitest", "~> 2.10"
  gem "rack-test", "~> 0.6.1"
  gem "capybara", "~> 1.1"
  gem "capybara-webkit", "~> 0.11"
  gem "capybara_minitest_spec", "~> 0.2"