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@zhengjia
zhengjia / capybara cheat sheet
Created June 7, 2010 01:35
capybara cheat sheet
=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')
@aishfenton
aishfenton / serializer_benchmarks.rb
Created July 18, 2010 02:32 — forked from visfleet/performance_of_yaml_vs_marshal.rb
Performance comparison of different ruby serializer methods
# sudo gem install bson
# sudo gem install bson_ext
# sudo gem install yajl-ruby
# sudo gem install json
# sudo gem install msgpack
require 'rubygems'
require 'benchmark'
require 'yaml'
require 'bson'
@jittuu
jittuu / gist:792715
Created January 24, 2011 02:19
Test Omniauth Facebook Callback Controllers in Devise with rspec
require 'spec_helper'
describe Users::OauthCallbacksController, "handle facebook authentication callback" do
describe "#annonymous user" do
context "when facebook email doesn't exist in the system" do
before(:each) do
stub_env_for_omniauth
get :facebook
@ChuckJHardy
ChuckJHardy / app.rake
Created May 29, 2011 12:34
Rake Task for Database Population
------------ From Rake Task
namespace :app do
# Checks and ensures task is not run in production.
task :ensure_development_environment => :environment do
if Rails.env.production?
raise "\nI'm sorry, I can't do that.\n(You're asking me to drop your production database.)"
end
end
@douglas
douglas / install_swig_mac.sh
Created July 6, 2011 01:47
Install swig on a mac with homebrew
brew install https://raw.github.com/cobrateam/formulae/master/swig.rb
@marktabler
marktabler / pretty_hash.rb
Created May 22, 2012 22:43
A quick and dirty hash beautifier
def self.pretty_hash(hash)
results = []
hash.keys.each do |key|
results << key
if hash[key].respond_to?(:keys)
results << pretty_hash(hash[key]).split("\n").map do | line |
" -- " + line
end
end
end
@jboner
jboner / latency.txt
Last active November 15, 2024 14:00
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@Mithrandir0x
Mithrandir0x / gist:3639232
Created September 5, 2012 16:15
Difference between Service, Factory and Provider in AngularJS
// Source: https://groups.google.com/forum/#!topic/angular/hVrkvaHGOfc
// jsFiddle: http://jsfiddle.net/pkozlowski_opensource/PxdSP/14/
// author: Pawel Kozlowski
var myApp = angular.module('myApp', []);
//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
this.sayHello = function() {
return "Hello, World!"
@lucasdavila
lucasdavila / dynamic_form_for_hstore_attributes_in_rails.html.erb
Created September 13, 2012 15:54
Dynamic form for hstore attributes in rails
<%= simple_form_for @product do |f| %>
<%= f.simple_fields_for :attributes do |d| %>
<% f.object.attributes.try(:each) do |key, value| %>
<%= d.input key, :input_html => {:value => value } %>
<% end %>
<% end %>
<% end %>
@adamcooke
adamcooke / cloudapp-export.rb
Created January 11, 2013 15:45
Export all your drops from CloudApp using this quick Ruby script
#!/usr/bin/env ruby
# A quick script to download all your files from CloudApp.
# To run this just run the script passing your e-mail & password
# to the script, for example:
#
# gem install cloudapp_api
# ruby cloudapp-export.rb [email protected] mypassword
#