How to include Rails Helpers on RSpec

问题

I'm trying to include some helpers to test with rspec but no luck.

What I did:

created a support/helpers.rb file under my spec folder.

support/helpers.rb

module Helpers
  include ActionView::Helpers::NumberHelper
  include ActionView::Helpers::TextHelper
end

and tried to require this file in spec_helper.rb.

# This file is copied to spec/ when you run 'rails generate rspec:install'
require 'rubygems'
require 'spork'
require 'support/helpers'

Spork.prefork do
.
.
end

this generates the following error:

/spec/support/helpers.rb:2:in `<module:Helpers>': uninitialized constant Helpers::ActionView (NameError)

How should I do this helpers to be available with Rspec?

Thanks.

回答1:

I normally include this code to require everything under my spec/support subdirectory once the Rails stack is available:

Spork.prefork do

  # ...

  Dir[Rails.root.join('spec', 'support', '**', '*.rb')].each { |f| require f }

  RSpec.configure do |config|
    config.include MyCustomHelper

    # ...
  end
end

Note that this will include MyCustomHelper in all example types (controllers, models, views, helpers, etc.). You can narrow that down by passing a :type parameter:

config.include MyControllerHelper, :type => :controller

回答2:

Simply include the Module you need directly in the spec file:

include PostsHelper

来源：https://stackoverflow.com/questions/9445410/how-to-include-rails-helpers-on-rspec