如何使用 Capybara 检查 Simple Form 的错误信息？

Question

我有以下测试：

scenario 'with invalid attributes' do
  click_button 'Create Post'
  save_and_open_page
  expect(page).to have_content 'Post has not been created.'
  expect(page).to have_content 'Title can\'t be blank.'
  expect(page).to have_content 'Content can\'t be blank.'
end

和_form.html.erb：

<%= simple_form_for(post) do |f| %>
  # post passed to simple_form_for is @post
  <%= f.input :title %>
  <%= f.input :content %>
  <%= f.button :submit, class: 'button' %>
<% end %>

为了获得完整的错误消息，config/initializers/simple_form_bootstrap.rb 具有以下内容：

b.use :full_error, wrap_with: { tag: 'span', class: 'help-block' }

和型号 post.rb:

class Post < ActiveRecord::Base
  validates :title, :content, presence: true
end

当我运行 rspec 时，我得到：

expected to find text "Title can't be blank." in "Post has not been created. new post * TitleTitle can't be blank * ContentContent can't be blank"

save_and_open_page 显示：

<div class="form-group string required post_title has-error">
  <label class="string required control-label" for="post_title">
    <abbr title="required">*</abbr> Title
  </label>
  <input class="string required form-control" type="text" value="" name="post[title]" id="post_title" />
  <span class="help-block">Title can&#39;t be blank</span>
</div>

为什么 Capybara 不考虑 <label> 和 <span> 之间的任何空格？

Answer 1

看来这只是一个小错误。您的水豚规范中有一个句号：

expect(page).to have_content `Title can\'t be blank.'

而错误消息显示句号不存在：

TitleTitle can't be blank

将其从您的规范中删除，它应该会通过 :)

如何使用 Capybara 检查 Simple Form 的错误信息？

How to use Capybara to check error messages from Simple Form?

ruby

rspec

ruby-on-rails

capybara

simple-form