ruby-on-rails - 未定义的方法 'should' 将 Capybara 与 Cucumber 一起使用时

Question

我正在尝试在我的 Rails 应用程序中同时使用 Capybara 和 Cucumber。所以，这就是我所做的:

安装需要的 gems 并将它们添加到 Gemfile

跑了rails generate capybara:install --cucumber

为 cucumber 创建了一个特征及其步骤定义

这是我的功能(是的，我正在创建博客应用程序):

Feature: Browse posts
    So that I can browse through the posts
    As a visitor
    I want to see all and/or particular posts

    Scenario: Viewing all the posts
        Given Posts exist
        When I navigate to the website home
        Then I should see all the posts

    Scenario: Viewing particular post
        Given Post #1 exists
        When I navigate to /posts/view/1
        Then I should see the post with id=1

这是它的步骤定义:

Given /^Posts exist$/ do
    assert (not Post.all.empty?), "No posts found at all"
end

Given /^Post #(\d+) exists$) do |id|
    assert Post.find_by_id(id).valid?, "Post ##{ id } was not found at all"
end

When /^I navigate to (.+)$/ do |url|
    if url =~ /^the website home$/ then
        visit '/'
    else
        visit url
    end
end

Then /^I should see all(.+)posts$/ do |delimiter|
    posts = Post.all

    posts.each do |post|
        page.should have_content post.title
    end
end

Then /^I should see the post with id([^\d]{1,})(\d+)$/ do |delimiter, id|
    post = Post.find_by_id id

    page.should have_content post.title
end

运行时 rake cucumber我收到这条消息:

Then I should see all the posts     # features/step_definitions/browsing_posts.rb:13
  undefined method `should' for #<Capybara::Session> (NoMethodError)
  ./features/step_definitions/browsing_posts.rb:17:in `block (2 levels) in <top (required)>'
  ./features/step_definitions/browsing_posts.rb:16:in `each'
  ./features/step_definitions/browsing_posts.rb:16:in `/^I should see all(.+)posts$/'
  features/browsing_posts.feature:9:in `Then I should see all the posts'

我究竟做错了什么？是的，我的功能有什么错误吗？

Answer 1

替换 page.should have_content post.title与 assert page.has_content?(post.title) .如果可行，请将其应用于另一个 have_content声明

编辑:那些 statements involving should 均基于 rspec expectations ，并且仅当您已经在使用 rspec 或其他一些响应于 should 的测试框架时才应使用.从 test::unit 角度来看，这可能只是另一种 assert .