Capybara JavaScript 测试的 XHR 请求存根

Question

我正在尝试编写一个 request_spec 来测试页面的功能，该表单使用执行 ajax 自动完成查找并返回有效结果以激活提交按钮的表单。

我想知道是否有人有同样的问题并找到某种方法或参考资料来通过此测试。

Gemfile

gem 'rake', '0.8.7'
gem 'rails', '2.3.5'
group :test do
  gem "capybara", :git => "git://github.com/jnicklas/capybara.git"
  gem 'rspec', '1.3.1'
  gem 'rspec-core'
  gem 'rspec-rails', '1.3.2'
  gem 'webmock', '1.4.0'
end

HTML

    ...
    <fieldset>
      <label>Enter a Destination</label>
      <%= text_field_tag :reviewable_name, nil, :id => "destination_autocomplete", :class => 'textfield'  %>
      <ul>
        <li>
          <h3 class="disabled">
            <%= submit_tag "Read reviews", :id => "read_a_destination_review", :name => "agree", :class => "read_review", :disabled => false %>
          </h3>
        </li>
        <li class="or">or</li>
        <li>
          <h3>
            <%= submit_tag "Write review", :id => "write_a_destination_review", :name => "agree", :class => "write_review", :disabled => false %>
          </h3>
        </li>
      </ul>
    </fieldset>
    ...

JavaScript (jQuery 1.4.4)

  ...
  $("#hotel_autocomplete, #destination_autocomplete").autocomplete({
    source: function(request, response){
      $.getJSON('/ajax/search_reviewable?type=destination&q=' + request.term,
        function(results, status){
          if(status == 'success'){
            //make it regex safe
            var term = request.term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1");
            term = term.split(' ').join('|');
            for(var i = 0; i < results.length; i++){
              results[i].value = results[i].label;
              results[i].label = results[i].value.replace(new RegExp("("+term+")", "gi"),'<strong>$1</strong>');
            }
            response(results);
          }
        }
      );
    },
    minLength: 3,
    delay: 500,
    select: function( event, ui ) {...}
  });
  ...

JSON 响应

/ajax/search_reviewable?type=destination&q=florida

[{"label":"Florida","id":124}]

RSpec 测试

    it "should activate submit button", :js => true do
      stub_request(:get, "/ajax/search_reviewable/type=destination&q=florida").to_return(:body => %Q{[{"label":"Florida","id":124}]}, :headers => {"Content-Type" => "applicaation/json; charset=utf-8", "Accept" => "*/*"})
      fill_in("destination_autocomplete", :with => "florida")
      page.execute_script(%Q{$("#destination_autocomplete").trigger("keyup");})
      find(".ui-menu-item a").click
      # should post to '/review/new', :id => 124
      page.should have_content("Write a Destination Review")
    end

测试失败，因为此规范无法在 JavaScript 中存根 XHR 请求。

我感谢您的评论回复和帮助。

Answer 1

我设法找到解决这个问题的办法。

实际发生的情况是，AJAX 请求的页面 /ajax/search_reviewable?type=destination&q=$1 正在向另一个服务发出 Net::HTTP 请求。

这个请求需要用我需要的响应来打断。

stub_request(:get, ".../all_by_partial_name/Florida/").to_return({
  :body => %Q{[{"label":"Florida","id":124}]}, 
  :headers => {"Content-Type" => "applicaation/json; charset=utf-8", "Accept" => "*/*"}
})

经过一些主要研究后，我发现你必须在 JavaScript 中触发一个事件才能通过测试。

来源。 单击自动完成选项要点

现在规范示例如下所示，

before(:each) do
  stub_request(:get, ".../all_by_partial_name/Florida/").to_return({
    :body => %Q{[{"label":"Florida","id":124}]}, 
    :headers => {"Content-Type" => "applicaation/json; charset=utf-8", "Accept" => "*/*"}
  })
end

it "should activate submit button and direct to new review", :js => true do
  fill_in("destination_autocomplete", :with => "florida")
  sleep 2
  page.execute_script(%Q{$(".ui-menu-item a:eq(0)").trigger("mouseenter").click();})
  find_button("write_a_destination_review").click
  page.should have_content("Write a Destination Review")
end

我希望这可以帮助您解决您的问题RSpec JQuery 问题。