Question

我使用Capybara / RSpec在Rails 5应用程序中编写功能测试，以检查我网站上的图像上传。我收到了这个错误：

  1) Photos user adds a photo
     Failure/Error: attach_file("photo[image]", '/app/assets/images/instagram-logo.jpg')


 Capybara::FileNotFound:
   cannot attach file, /app/assets/images/instagram-logo.jpg does not exist

我的测试是要求＆＃39; rails_helper＆＃39; 要求＆＃39; web_helpers＆＃39;

RSpec.feature "Photos", type: :feature do
  scenario "user adds a photo", :type => :feature do
    add_photo
    page.should have_content("Instagram Logo")
    expect(page).to have_css("img[src*='instagram-logo.jpg']")
  end
end

网络助手：

def add_photo
  sign_up
  visit "/photos"
  click_button "New Photo"
  fill_in "Title", :with => "Instagram Logo"
  attach_file("photo[image]", Rails.root + '/app/assets/images/instagram-logo.jpg')
end

观点：

  <div class="field">
    <%= form.label :title %>
    <%= form.text_field :title, id: :photo_title %>
  </div>

  <div class="field">
    <%= form.label :image %>
    <%= form.file_field :image, id: :photo_title %>
  </div>

  <div class="actions">
    <%= form.submit %>
  </div>

从视图中编译的HTML：

<form enctype="multipart/form-data" action="/photos" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="&#x2713;" /><input type="hidden" name="authenticity_token" value="igZ4MndDfIQdZOmdiPxKu14bTIkAQTeKG+hwq0E6swKuskkkiCFwEVkarMgS26lc83z1eB/QyuQtnfFLRyuLWQ==" />

  <div class="field">
    <label for="photo_title">Title</label>
    <input id="photo_title" type="text" name="photo[title]" />
  </div>

  <div class="field">
    <label for="photo_image">Image</label>
    <input id="photo_title" type="file" name="photo[image]" />
  </div>

  <div class="actions">
    <input type="submit" name="commit" value="Create Photo" data-disable-with="Create Photo" />
  </div>
</form>

该文件肯定在该文件路径中。我在没有Rails.root的情况下尝试了它，并且最初在我尝试Rails.root + /public/instagram-logo.jp的公共文件夹中进行了尝试，只是/public/instagram-logo.jpg，最后是instagram-logo.jp。不确定问题是文件路径还是沿着这条线走得更远。还尝试了web_helper中的attach_file("image"...。

非常感谢任何帮助！

Answer 1

当您通过像Rails.root + '/app/assets/images/instagram-logo.jpg'这样的绝对路径时，Rails.root将被忽略。试试Rails.root + 'app/assets/images/instagram-logo.jpg'，看看会发生什么。

同时检查文件是否真的存在：

File.exist?(Rails.root + 'app/assets/images/instagram-logo.jpg')

（因为这是CapyBara https://github.com/teamcapybara/capybara/blob/3a2c5d21e756460d388995aa9698c4bc8c6ba49d/lib/capybara/node/actions.rb#L238抛出的错误）

仅供参考：这是Pathname的行为：

pry(main)> Pathname.new("/this/is/my/root") + "/plus/absolute"
=> #<Pathname:/plus/absolute>
pry(main)> Pathname.new("/this/is/my/root") + "plus/relative"
=> #<Pathname:/this/is/my/root/plus/relative>

Capybara无法在RSpec / Rails测试中找到要附加的文件

1 个答案: