rails--rails/railties/lib/rails/console/app.rb

require 'active_support/all'
require 'active_support/test_case'
require 'action_controller'

# work around the at_exit hook in test/unit, which kills IRB
Test::Unit.run = true if Test::Unit.respond_to?(:run=)

# reference the global "app" instance, created on demand. To recreate the
# instance, pass a non-false value as the parameter.
def app(create=false)
  @app_integration_instance = nil if create
  @app_integration_instance ||= new_session do |sess|
    sess.host! "www.example.com"
  end
end

# create a new session. If a block is given, the new session will be yielded
# to the block before being returned.
def new_session
  app = Rails.application
  session = ActionDispatch::Integration::Session.new(app)
  yield session if block_given?
  session
end

# reloads the environment
def reload!(print=true)
  puts "Reloading..." if print
  # This triggers the to_prepare callbacks
  ActionDispatch::Callbacks.new(Proc.new {}, false).call({})
  true
end