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

// Converts an ArrayBuffer directly to base64, without any intermediate 'convert to string then
// use window.btoa' step. According to my tests, this appears to be a faster approach:
// http://jsperf.com/encoding-xhr-image-data/5

/*
MIT LICENSE

Copyright 2011 Jon Leighton

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

jonleighton

From 42a20533837e925030b07132eaf0a2a6534ad235 Mon Sep 17 00:00:00 2001
From: Jon Leighton <[email protected]>
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'
)

jonleighton

# encoding: utf-8

def λ(&block)
  block
end

I = λ { |x| x }
I.(3) # => 3

jonleighton

##### Pointless: #####

# Bad:
Foo.new.tap do |foo|
  foo.bar = "<3"
end

# Good:
foo = Foo.new
foo.bar = "<3"

jonleighton

class A
  def foo
    "<3"
  end
end

class B < A
  def foo
    # super will still call A#foo, even after the method is aliased
    super * 2