knzai

# RSpec's subject method, both implicitly and explicitly set, is useful for
# declaratively setting up the context of the object under test. If you provide a
# class for your describe block, subject will implicitly be set to a new instance
# of this class (with no arguments passed to the constructor). If you want
# something more complex done, such as setting arguments, you can use the
# explicit subject setter, which takes a block.
describe Person do
  context "born 19 years ago" do
    subject { Person.new(:birthdate => 19.years.ago }
    it { should be_eligible_to_vote }

cblunt

# ...

gem 'carrierwave'
gem 'fog', '~> 1.0.0' # Need to specify version, as carrierwave references older (0.9.0) which doesn't allow configuration of Rackspace UK Auth URL

pauljamesrussell

  # Use: it { should accept_nested_attributes_for(:association_name).and_accept({valid_values => true}).but_reject({ :reject_if_nil => nil })}
  RSpec::Matchers.define :accept_nested_attributes_for do |association|
    match do |model|
      @model = model
      @nested_att_present = model.respond_to?("#{association}_attributes=".to_sym)
      if @nested_att_present && @reject
        model.send("#{association}_attributes=".to_sym,[@reject])
        @reject_success = model.send("#{association}").empty?
      end
      model.send("#{association}").clear

rklemme

require 'benchmark'

REP = 100_000

dat = [1, 2, 3, 2, 4, 5, 4, 4]

Benchmark.bmbm 25 do |x|
  x.report "Jan low level" do
    REP.times do
      dups = {}

riyad

module ApplicationHelper
  # thanks to http://blog.phusion.nl/2011/08/14/rendering-rails-3-1-assets-to-string/
  # you may need to change the owner of the tmp/cache/* directories to the web servers user
  # e.g. for Debian systems: `chown -R www-data:www-data tmp/cache/*`
  def render_asset(asset)
    Conferator::Application.assets.find_asset(asset).body.html_safe
  end
end

marcok

describe('Core_loadData', function () {
  var id = 'testContainer';

  beforeEach(function () {
    this.$container = $('<div id="' + id + '"></div>').appendTo('body');
  });

  afterEach(function () {
    if (this.$container) {
      this.$container.remove();

mars

Capybara.register_driver :chrome do |app|
  Capybara::Selenium::Driver.new(app, 
    browser: :chrome,
    desired_capabilities: {
      "chromeOptions" => {
        "args" => %w{ window-size=1024,768 }
      }
    }
  )
end

SirRawlins

# Drop this into /spec/support/matchers
# Usage: result.should be_url
# Passes if result is a valid url, returns error "expected result to be url" if not.

# Matcher to see if a string is a URL or not.
RSpec::Matchers.define :be_url do |expected|
	# The match method, returns true if valie, false if not.
	match do |actual|
		# Use the URI library to parse the string, returning false if this fails.
		URI.parse(actual) rescue false

lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

teeparham

require 'rdoc'
converter = RDoc::Markup::ToMarkdown.new
rdoc = File.read(ARGV[0] || 'README.rdoc')
puts converter.convert(rdoc)

# ruby rdoc2md.rb > README.md
# ruby rdoc2md.rb ABC.rdoc > abc.md