backtrace

/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/gems/capybara-webkit-0.10.0/lib/capybara/driver/webkit/node.rb:127:in `check_visibility'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/gems/capybara-webkit-0.10.0/lib/capybara/driver/webkit/node.rb:36:in `select_option'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/gems/capybara-1.1.2/lib/capybara/node/element.rb:83:in `block in select_option'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/gems/capybara-1.1.2/lib/capybara/node/base.rb:46:in `wait_until'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/gems/capybara-1.1.2/lib/capybara/node/element.rb:83:in `select_option'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/bundler/gems/splinter-81bbe9fa8ac9/lib/splinter/capybara/actions.rb:109:in `find_and_select_option'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/bundler/gems/splinter-81bbe9fa8ac9/lib/splinter/capybara/actions.rb:48:in `block in complete_form'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/bundler/gems/splinter-81bbe9fa8ac9/lib/splinter/capybara/form_completer.rb:41:in `each'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/bundler/gems/splinter-81bbe9fa8ac9/lib/splinter/capybara/form_completer.rb:41:in `each_input'
/home/fabio/.rvm/gems/ruby-1.9.3-p0-perf/bundler/gems/splinter-81bbe9fa8ac9/lib/splinter/capybara/actions.rb:48:in `complete_form'
/home/fabio/dev/site5/helix/spec/support/request_shared_specs/commentable.rb:30:in `block (3 levels) in <top (required)>'

gistfile1.erb

<%= simple_form_for(Comment.new, remote: true) do |f| %>
  <%= f.input :commentable_id, as: :hidden, input_html: { value: commentable.id } %>
  <%= f.input :commentable_type, as: :hidden, input_html: { value: commentable.class.name } %>
  <%= f.input :category_id do %>
    <%= f.select :category_id, comment_categories_options_for_select(f.object.category_id), { include_blank: true }, class: "select" %>
  <% end %>
  <%= f.input :title %>
  <%= f.input :content, input_html: { rows: 5 } %>

  <div class="form-actions">
    <%= f.button :submit, t("create") %>
    <%= link_to t("cancel"), "#", class: 'btn cancel-comment-trigger' %>
  </div>
<% end %>

spec

it "should allow to create a new comment" do
  click_link "New Comment"

  # THIS FAILS
  # complete_form :comment do |f|
  #   f.select :category_id, "abuse"
  #   f.text_field :title,   "My comment title"
  #   f.text_field :content, "My comment content"
  # end

  # THIS WORKS
  select  "Abuse",   from: "Category"
  fill_in "Title",   with: "My comment title"
  fill_in "Content", with: "My comment content"
  click_button "Create"

  within_table("table-list-comments") do
    find(:xpath, "//tr[contains(., \"My comment title\")]").click_link("View")
    should have_content("My comment content")
  end
end