我已经尝试过我可以找到Google和SO的每一个解决方案.以下是我尝试过的一些不同的事情：

page.execute_script %Q{$('#{selector}').val('#{value}').trigger('keydown')}

和

fill_in field,with: options[:with]
page.execute_script %Q{ $('##{field}').trigger('focus') }
page.execute_script %Q{ $('##{field}').trigger('keydown') }

这是什么失败：

page.should have_selector('ul.ui-autocomplete li.ui-menu-item a')

但是当我在Firebug中看到它并且在浏览器中测试它时,它肯定是在那里.

这里有所有的细节,包括上述的重述.请记住,浏览器中的自动填充字段工作正常.

listing_integration_spec.rb

require "spec_helper"

describe "Listing Integration" do

  let!(:user) { login_user }

  it "lets a user add information listing",js: true do
    listing = create(:listing,user: user)
    click_link('Additional Information')
    click_link('Create')
    fill_autocomplete('listings_search',with: listing.item_id)
  end

end

规格/支持/ feature_helper.rb

def fill_autocomplete(field,options = {})
  fill_in field,with: options[:with]
  page.execute_script %Q{ $('##{field}').trigger('focus') }
  page.execute_script %Q{ $('##{field}').trigger('keydown') }
  selector = %Q{ul.ui-autocomplete li.ui-menu-item a:contains('#{options[:with]}')}
  page.should have_selector('ul.ui-autocomplete li.ui-menu-item a')
  page.execute_script %Q{ $("##{selector}").trigger('mouseenter').click() }
end

ERB从视图模板

<%= simple_fields_for :listings  do |f| %>
  <%= f.input :search,label: "Search by Listing",required: true %>
<% end %>

和咖啡书：

$("#listings_search").autocomplete
  source: (request,response) ->
    options = 
      term: request.term
    $.get "/search_listings",options,(data) ->
      if data.length == 0
        alert "No listings found."
      response data
  minLength: 2
  select: (event,ui) ->
    add_listing_hash = 
      type: "GET"
      url: "/add_listing"
      data: { id: ui.item.id }
      success: () ->
    $.ajax(add_listing_hash)