“possimus”的未定义方法“有效？”：字符串答案

【问题标题】：undefined method `valid?` for "possimus":String“possimus”的未定义方法“有效？”：字符串
【发布时间】：2016-10-21 11:34:20
【问题描述】：

测试代码：

context 'validations' do
let(:super_campaign){FactoryGirl.create(:super_campaign)}
   context 'package' do
    it "Package should be present" do
     expect(super_campaign.package).to be_valid
    end
  end
end

我收到类似undefined method "valid?" for "possimus":String的错误

【问题讨论】：

标签： ruby-on-rails ruby-on-rails-4 rspec factory-bot

【解决方案1】：

expect(super_campaign).to be_valid # AR object, not it's attribute

【讨论】：

你在 45 秒内回答，我花了更多时间输入这个答案:(

【解决方案2】：

您只能测试整个模型是否有效。不过，您可以测试 package 属性是否有错误。

context 'validations' do
let(:super_campaign){FactoryGirl.create(:super_campaign)}
   context 'package' do
    it "Package should be present" do
     expect(super_campaign).to be_valid
     expect(super_campaign.errors[:package]).to be_nil
    end
  end
end

【讨论】：