jonleighton

# This pattern avoids serializing a large object (the Task) to Redis, whilst
# avoiding passing a low-level data type (the id) into the constructor.
# You might choose to call TaskJob.new(task) directly elsewhere (e.g. tests)

class TaskJob
  def self.perform(id)
    new(Task.find(id)).perform
  end

  def initialize(task)

jonleighton

# This hack is designed to prevent a thread from implicitly checking out an AR connection by
# just accessing ActiveRecord::Base.connection. The point of doing this is to ensure that threads
# don't tie up connections that they are not using, by making sure we're explicit about where we
# need to use an AR connection.
#
# See also http://tenderlovemaking.com/2011/10/20/connection-management-in-activerecord.html

ActiveSupport.on_load(:active_record) do
  ActiveRecord::ConnectionAdapters::ConnectionPool # ensure loaded

jonleighton

(function() {
    function m() {
        n = location.protocol + "//" + location.host + "/";
        r = t.ExtGuid;
        i = t.Version;
        s = t.PartnerId;
        o = t.NameShort4;
        c = t.AdServer;
        u = t.AdCacheBuster;
        f = t.cacheVersion || f;

jonleighton

            _
           /(|
          (  :
         __\  \  _____
       (____)  `|
      (____)|   |
       (____).__|
        (___)__.|_____
                   SSt

jonleighton

class MyTestController < ApplicationController
  def test_stuff
    # bla
  end
end

# Add to config/routes.rb...
# 
# if Rails.env.test?
#   map.connect '/:controller/:action/:id'

jonleighton

$ ruby rack_proxy.rb 
Loaded suite rack_proxy
Started
E
Finished in 0.004785 seconds.

  1) Error:
test_foo(AppTest):
NoMethodError: undefined method `closed?' for nil:NilClass
    /home/turnip/.rvm/rubies/ruby-1.8.7-p330/lib/ruby/1.8/net/http.rb:1069:in `begin_transport'

jonleighton

From 42a20533837e925030b07132eaf0a2a6534ad235 Mon Sep 17 00:00:00 2001
From: Jon Leighton <j@jonathanleighton.com>
Date: Fri, 13 May 2011 20:03:57 +0100
Subject: [PATCH] Unfailing test case

---
 .../has_many_through_associations_test.rb          |   21 ++++++++++++++++++++
 activerecord/test/schema/schema.rb                 |   11 ++++++++++
 2 files changed, 32 insertions(+), 0 deletions(-)

jonleighton

require 'benchmark'

class Object
  def public_send_public_method_defined(method, *args, &block)
    singleton_class = (class << self; self; end)

    if singleton_class.public_method_defined?(method)
      send(method, *args, &block)
    else
      raise # this doesn't matter, as it's not the path we're benchmarking

jonleighton

# 1.9.2

Rehearsal -------------------------------------------------------
no-send               1.950000   0.000000   1.950000 (  1.961587)
symbol-send           2.190000   0.000000   2.190000 (  2.192600)
string-send           4.790000   0.000000   4.790000 (  4.812341)
---------------------------------------------- total: 8.930000sec

                          user     system      total        real
no-send               2.330000   0.000000   2.330000 (  2.332294)

jonleighton

require 'active_record'
require 'logger'

puts "Active Record #{ActiveRecord::VERSION::STRING}"

ActiveRecord::Base.establish_connection(
  :adapter  => 'mysql',
  :user     => 'root',
  :database => 'test'
)