Bundle and use spork to speed up specs by preloading rails env

Gemfile

@@ -14,4 +14,5 @@ group :development, :test do
   gem 'capybara'
   gem 'database_cleaner'
   gem 'factory_girl_rails'
+  gem 'spork', '~> 0.9.0.rc'
 end

Gemfile.lock

@@ -113,6 +113,7 @@ GEM
       ffi (>= 1.0.7)
       json_pure
       rubyzip
+    spork (0.9.0.rc9)
     sqlite3 (1.3.3)
     term-ansicolor (1.0.5)
     thor (0.14.6)
@@ -134,4 +135,5 @@ DEPENDENCIES
   haml
   rails (= 3.0.9)
   rspec-rails
+  spork (~> 0.9.0.rc)
   sqlite3

spec/spec_helper.rb

@@ -1,16 +1,19 @@
-# This file is copied to spec/ when you run 'rails generate rspec:install'
-ENV['RAILS_ENV'] ||= 'test'
-require File.expand_path('../../config/environment', __FILE__)
-require 'rspec/rails'
+require 'spork'
 
-# Requires supporting ruby files with custom matchers and macros, etc,
-# in spec/support/ and its subdirectories.
-Dir[Rails.root.join('spec/support/**/*.rb')].each {|f| require f}
+Spork.prefork do
+  ENV['RAILS_ENV'] ||= 'test'
+  require File.expand_path('../../config/environment', __FILE__)
+  require 'rspec/rails'
 
-RSpec.configure do |config|
+  Dir[Rails.root.join('spec/support/**/*.rb')].each {|f| require f}
+
+  RSpec.configure do |config|
     config.mock_with :rspec
     config.fixture_path = "#{::Rails.root}/spec/fixtures"
     config.use_transactional_fixtures = true
+  end
 end
 
-load "#{Rails.root.to_s}/db/schema.rb"
+Spork.each_run do
+  load "#{Rails.root.to_s}/db/schema.rb"
+end

spec/support/decrease_bcrypt_cost_factor.rb

@@ -1,3 +1,5 @@
+require 'bcrypt'
+
 module BCrypt
   class Engine
     [:DEFAULT_COST, :MIN_COST].each do |sym|