RSpec 模型验证失败但在 Rails Console 中工作正常？

Question

我真的一直被这个问题困扰。当我在 Rails 控制台中测试模型时，我对模型的验证失败了（应该如此），但我的 rspec 示例失败了，因为它无论如何都会验证（它不应该验证）。我在这里缺少什么或者我应该从哪里开始寻找？

谢谢， 伊万

见下图：

    ivan:~/Development/ruby/IvanEnviromanRefinery [git:master+]  → bundle exec rspec ../refinerycms-link/
    .............................F.

    Failures:

      1) BlogPost bookmark links must have a link url if it is a link
         Failure/Error: Factory.build(:post,
           expected valid? to return false, got true
         # /Users/ivan/Development/ruby/refinerycms-link/spec/models/blog_post_spec.rb:197:in `block (3 levels) in <top (required)>'

    Finished in 6.56 seconds
    31 examples, 1 failure

    Failed examples:

    rspec /Users/ivan/Development/ruby/refinerycms-link/spec/models/blog_post_spec.rb:196 # BlogPost bookmark links must have a link url if it is a link


    ivan:~/Development/ruby/IvanEnviromanRefinery [git:master+]  → rails console
    Loading development environment (Rails 3.0.9)
    ruby-1.9.2-p180 :001 > b = BlogPost.new
     => #<BlogPost id: nil, title: nil, body: nil, draft: nil, published_at: nil, created_at: nil, updated_at: nil, user_id: nil, cached_slug: nil, custom_url: nil, link_url: nil, is_link: nil, custom_teaser: nil> 
    ruby-1.9.2-p180 :002 > b.title=' 2011-06-24 8:34 '
     => " 2011-06-24 8:34 " 
    ruby-1.9.2-p180 :003 > b.body='goo'
     => "goo" 
    ruby-1.9.2-p180 :004 > b.is_link = true
     => true 
    ruby-1.9.2-p180 :005 > b.valid?
     => false
    ruby-1.9.2-p180 :007 > b.save
     => false 
    ruby-1.9.2-p180 :008 > b.errors
     => {:link_url=>["must have a link_url if is_link is true"]} 
    ruby-1.9.2-p180 :009 > 


    require 'spec_helper'
    Dir[File.expand_path('../../../features/support/factories/*.rb', __FILE__)].each{|factory| require factory}

    describe BlogPost do
      let(:blog_post ) { Factory :post }

      ...

        describe "bookmark links" do
          it "may have a bookmark link" do
           Factory.build(:post,
                        :title => "a link",
                        :body => "link text",
                        :is_link => true,
                        :link_url => "http://example.com").should be_valid
           end
          it "must have a link url if it is a link" do
            Factory.build(:post,
                                 :title => "a link",
                                 :body => "link text",
                                 :is_link => true).should_not be_valid
          end     
        end
    end

Answer 1

您确定在您的第二个期望中 link_url 没有以某种方式设置吗？尝试输出该值并检查日志

it "must have a link url if it is a link" do
  post = Factory.build(:post,
   :title => "a link",
   :body => "link text",
   :is_link => true)
  Rails.logger.info "Post link: #{post.link_url}"
  post.should_not be_valid
end