a proper config/initializer to catch all the i18n errors (hopefully) within rails 3.2 test environment

i18n_test.rb

if Rails.env.test?
  module I18n
    def self.just_raise_that_exception(*args)
      raise args.first
    end
  end
  I18n.exception_handler = :just_raise_that_exception

  module ActionView::Helpers::TranslationHelper
    def translate_with_raise(key, options = {})
      translate_without_raise key, options.merge(:raise => true)
    end
    alias_method_chain :translate, :raise
    alias_method :t, :translate
  end
end