尝试从acts_as_taggable_on 构建正确的夹具/工厂

Posted 2023-03-12

【中文标题】尝试从acts_as_taggable_on 构建正确的夹具/工厂

【英文标题】：trying to build the right fixture / factory from acts_as_taggable_on

【发布时间】：2016-01-13 19:14:13

【问题描述】：

需要一些帮助来解决 rspec 测试中的错误。 我只是找不到正确的方法来构建工厂或 controller_spec 来为 tag_list 创建一个数组。

型号：

class Record < ActiveRecord::Base
  #Associations
  belongs_to :user

  # Validations
  validates :title, :user, presence: true

  # Alias for acts_as_taggable_on :tags
  acts_as_taggable
end

控制器规格：

require 'rails_helper'

describe RecordsController do
  let(:record)  create(:record) 
  let(:title)  "Some title I would like to put in my record" 
  let(:description)  "description I would like to put in my record" 
  let(:tag_list)  ["tag", "list", "I", "would", "like", "to", "put", "in", "my", "record"] 


  describe "#create" do
    it "creates a new record with the given title, description and tag_list" do
      expect do
        post :create, record:  title: title, description: description, tag_list: tag_list 
      end.to change  Record.count .by(1)

      expect(response).to redirect_to(assigns[:record])

      expect(assigns[:record].title).to eq(title)
      expect(assigns[:record].description).to eq(description)
      expect(assigns[:record].tag_list).to eq(tag_list)

    end

    it "fails to create a record and returns to the index page" do
      expect(post :create, record:  description: description, tag_list: tag_list ).to render_template(:index)
      expect(assigns[:records]).to eq(Record.all)
    end
  end
end

控制器：

class RecordsController < ApplicationController

  def create
    @record = Record.new(record_params)

    if @record.save
      redirect_to @record
    else
      @records = Record.all
      render 'index'
    end
  end

  private

    def record_params
      params.require(:record).permit(:title, :description, :tag_list).merge(user: current_user)
    end
end

工厂：

FactoryGirl.define do
  factory :record do
    title 'record title'
    description 'record description'
    tag_list [create(:tag), create(:tag)]
    user
  end
end

测试错误：

RecordsController
  #create
    creates a new record with the given title, description and tag_list (FAILED - 1)
    fails to create a record and returns to the index page

Failures:

  1) RecordsController#create creates a new record with the given title, description and tag_list
     Failure/Error: expect(assigns[:record].tag_list).to eq(tag_list)

       expected: ["tag", "list", "I", "would", "like", "to", "put", "in", "my", "record"]
            got: []

       (compared using ==)

【问题讨论】：

你能把记录模型也添加到问题中吗

如果您想将数组保存到数据库，请尝试将“serialize :tag_list”添加到您的模型中。

让我知道它是否有效？

还是出现同样的错误，要么是controller_spec的问题，要么是工厂的问题。

【参考方案1】：

考虑将您的规格更改为此。

require 'rails_helper'

describe RecordsController, type: :controller do
  context "#create" do
    it "creates a new record with the given title, description and tag_list parameters" do
      title = double(:title)
      description = double(:description)
      tag_list = double(:tag_list)
      record = double(:record)
      params = record: record, title: title, description: description, tag_list: tag_list
      expect(Record).to receive(:new).with(params).and_return(record)
      expect(record).to receive(:save)          
      post :create, params
      expect(assigns(:record)).to eq(record)
      expect(response).to redirect_to "/some_record_path"
    end

    it "fails to create a record and returns to the index page" do
      record = double(:record)
      records = double(:records)
      params = record: record
      expect(Record).to receive(:new).with(params).and_return(record)
      expect(Record).to receive(:all).and_return(records)          
      post :create, params
      expect(assigns(:records)).to eq(records)
      expect(response).to render_template :index
    end
  end
end

注意：我在redirect_to "some_record_path" 这条线上留下了上面的测试失败

如果其他一切正常，则在您运行测试的那一刻，失败将告诉您路径应该是什么。或者你可能已经知道了

【讨论】：

嗨 MilesStanfield，我知道了： 8) RecordsController#create 使用给定的标题、描述和 tag_list 参数创建一条新记录失败/错误：expect(assigns(:record)).to eq(record ) 预期：#<:mocks::double:0x8447cbb8> 得到：nil（使用 == 比较） 9) RecordsController#create 未能创建记录并返回索引页面失败/错误：预期(assigns(:records)).to eq(records) 预期：#<:mocks::double:0x817382c4> 得到：nil（使用 == 比较）

哦，对不起，我现在编辑了我的答案。再试一次。我不小心在帖子之前放置了期望分配：创建，参数，它应该在它之后进行