path: root/railties/test/initializer/test_helper.rb

# This is a test helper file that simulates a rails application being
# boot from scratch in vendored mode. This file should really only be
# required in test cases that use the isolation helper so that requires
# can be reset correctly.
RAILS_ROOT = "#{File.dirname(__FILE__)}/root"
RAILS_FRAMEWORK_ROOT = File.expand_path("#{File.dirname(__FILE__)}/../../..")

require 'rubygems'
gem 'rack', '~> 1.0.0'

require "test/unit"
# We are purposely avoiding adding things to the load path to catch bugs that only happen in the genuine article
require "#{RAILS_FRAMEWORK_ROOT}/activesupport/lib/active_support/testing/isolation"
require "#{RAILS_FRAMEWORK_ROOT}/activesupport/lib/active_support/testing/declarative"

class Test::Unit::TestCase
  extend ActiveSupport::Testing::Declarative

  def assert_stderr(match)
    $stderr = StringIO.new
    yield
    $stderr.rewind
    err = $stderr.read
    assert_match match, err
  ensure
    $stderr = STDERR
  end
end

# Fake boot.rb
module Rails
  class << self
    attr_accessor :vendor_rails

    def vendor_rails?
      @vendor_rails
    end

    def boot!
      # Require the initializer
      require "#{RAILS_FRAMEWORK_ROOT}/railties/lib/initializer"
      # Run the initializer the same way boot.rb does it
      Rails::Initializer.run(:install_gem_spec_stubs)
      Rails::GemDependency.add_frozen_gem_path
      Rails::Initializer.run(:set_load_path)
    end
  end
end

# All that for this:
Rails.boot!