blind

No view rendering in Rails controller testing.

As usual, you can install it using rubygems.

$ gem install blind

If you"re using Bundler, add this line to your application"s Gemfile:

gem "blind", group: :test

And then execute:

$ bundle

Include the Blind module in your controller tests:

class ActionController::TestCase
  include Blind
end

If you want to assert against the contents of the rendered view, you can use the render_views! method:

class HomeControllerTest < ActionController::TestCase
  render_views!

  def test_body
    get :index

    assert_match /content/, response.body
  end
end

Check this blog post.