为什么在运行Rspec时出现未定义的方法"have"错误? [英] Why do I get an undefined method 'have' error when running Rspec?

问题描述

我最近升级到了Rails 4，除了我的Rspec测试外，其他一切都正常.

I recently upgraded to Rails 4 and everything works fine except for my Rspec tests.

require 'spec_helper'

describe Invoice do

  before :each do
    @user = FactoryGirl.create(:activated_user)
    person = FactoryGirl.create(:person, :user => @user, :company => nil)
    @project = FactoryGirl.create(:project, :user => @user, :person_ids => [person.id], :invoice_recipient_id => person.id)
  end

  it "has a valid factory" do
    expect(FactoryGirl.build(:invoice, :project => @project, :user => @user)).to be_valid
  end

  it "is invalid without a number" do
    expect(FactoryGirl.build(:invoice, :project => @project, :user => @user, :number => nil)).to have(1).errors_on(:number)
  end

end

运行这些测试时，出现此错误:

When running these tests I get this error:

Failure/Error: expect(FactoryGirl.build(:invoice, :project => @project, :user => @user, :number => nil)).to have(1).errors_on(:number)
NoMethodError:
undefined method `have' for #<RSpec::ExampleGroups::Invoice_2:0x009ge29360d910>
# ./spec/models/invoice_spec.rb:16:in `block (2 levels) in <top (required)>'

有人可以告诉我我在这里想念什么吗?

Can anybody tell me what I am missing here?

我已经用谷歌搜索了，但是什么也没发现. have方法实际上在Rspec中是相当标准的，我不明白为什么它不起作用.

I googled it already but nothing came up. The have method is actually fairly standard in Rspec and I can't see why it shouldn't work.

感谢任何指针.

推荐答案

have匹配器家族在RSpec 2.99中已弃用，并已移至单独的 http:中对此进行了讨论: //myronmars.to/n/dev-blog/2013/11/rspec-2-99-and-3-0-betas-have-been-released ，这也提供了建议的迁移到3.0的方法.具体来说，建议您安装/使用RSpec 2.99，以查看与在3.0中删除/移动的项目相关的弃用消息.

The have family of matchers was deprecated in RSpec 2.99 and has been moved to a separate rspec-collection_matchers gem as of RSpec 3.0. This is discussed in http://myronmars.to/n/dev-blog/2013/11/rspec-2-99-and-3-0-betas-have-been-released, which also gives the suggested approach to migrating to 3.0. Specifically, it recommends installing/using RSpec 2.99 in order to see the deprecation messages associated with items that were removed/moved in 3.0.

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