tjh

Motivation

We recently were working on a project where the version of Firefox on the development machines was causing acceptance tests running on Capybara and Selenium to fail and/or hang erroneously. The solution was to point Selenium at a custom version of Firefox. We also added the Firefox binaries to the application git repo so that all devs could run against a known good version of Firefox.

Solution

1. Download the desired version of Firefox from ftp://ftp.mozilla.org/pub/firefox/releases/

2. Put Firefox.app in your rails app somewhere like ./bin/spec/macosx/

tjh

<% @customers.all.each_with_index do |i, customer| %>
  <h1><%= "Customer #{i}: #{customer.name}" %></h1>
<% end %>

customers.collect { |c| c.address.city }.uniq 

<% form_for @customer %>
  <%= f.label :name %>
  <%= f.input :name %>
<% end %>

tjh

#!/usr/bin/ruby

# Loop through the posts and add the redirections YML front-matter
# used by the plugin described here:
#
#   http://www.marran.com/tech/creating-redirects-with-jekyll/
#
# This is a total hack job, just enough to get the job done. I'm
# sure there's a better way to do this. 

tjh

echo 'class Float; def *(other); self.to_i * other.to_i; end; end;' >>  config/application.rb

tjh

TestClass

Description and usage:

require 'test_class'
TestClass.new

Running the tests

Install the rspec gem

tjh

 while :; do (ps -o command -U YOUR_APP_USER | awk "/Rack:/ {print $1 $2}" | wc -l | { read procs; echo "hello version 1.0\nauthenticate YOUR_API_KEY\ngauge nginx.proc.num $procs `date +%s`\n" } ) | nc instrumentalapp.com 8000; sleep 60; done

tjh

#!/usr/bin/env ruby

# Put this file in the root of your Rails project,
# then run it to output the SQL needed to change all
# your tables and columns to the same character set 
# and collation.
#
# > ruby character_set_and_collation.rb

DATABASE      = ''

tjh

Acts As Boolean

A quick way to create an attribute on your ActiveRecord models that always responds with a boolean value, similar to the Boolean attributes from a table that have the ? method for syntactic sugar.

class SomeObject < ActiveRecord::Base
  acts_as_boolean :is_active
end

o = SomeObject.new

o.is_active? # => false

tjh

require 'growl'

ENV["WATCHR"] = "1"
$spec_cmd = "rspec --colour --format nested -d"
$evergreen_cmd = "evergreen run"

def growl(message)
  if message == 'true' || message.match(/\s0\s(errors|failures)/)
    title = 'Watchr: All tests passed'
    priority = 4

tjh

ENV["WATCHR"] = "1"
$spec_cmd = "spec --colour --format nested"

def growl(message)
  if message.match(/\s0\s(errors|failures)/)
    title = 'Watchr: All tests passed'
    image = File.join(File.expand_path(File.dirname(__FILE__)), '.watchr_images', 'pass.png')
  else
    title = 'Watchr: Tests are failing'
    image = File.join(File.expand_path(File.dirname(__FILE__)), '.watchr_images', 'pass.png')