Ruby on rails 关系控制器的Rspec失败，无法'；找不到使用'；id'=

我正在尝试为我的关系控制器制定规范，但#create方法失败（找不到id为的用户）。 你能告诉我怎么修理这个吗？ 谢谢您的帮助，如果您有任何问题，请询问。：）

与财务主任的关系：

class RelationshipsController < InheritedResources::Base

  def create
    user = User.find(params[:followed_id])
    current_user.follow(user)
    redirect_to user
  end

  def destroy
    user = Relationship.find(params[:id]).followed
    current_user.unfollow(user)
    redirect_to user
  end
end

失败：

RelationshipsController
  #create
    should require logged-in user to destroy relationship
  #create
    should require logged-in user to create relationship (FAILED - 1)

Failures:

  1) RelationshipsController#create should require logged-in user to create relationship
     Failure/Error:
       expect{
         Relationship.create
       }.to change(Relationship, :count).by(1)

       expected #count to have changed by 1, but was changed by 0

关系：

class Relationship < ActiveRecord::Base
  #Associations
  belongs_to :follower, class_name: "User"
  belongs_to :followed, class_name: "User"

#Validations
  validates :follower_id, presence: true
  validates :followed_id, presence: true
end

类关系

用户：

class用户

在您的测试中-

describe RelationshipsController do
  let(:relationship) { create(:relationship) }
  let(:user) { create(:user) }

直到需要时才创建用户

describe RelationshipsController do
  let(:relationship) { create(:relationship) }
  let!(:user) { create(:user) }

---

使用！运算符强制创建用户变量并将其存储到数据库中。否则，将延迟加载变量（仅在需要时）。这就是为什么它在数据库中不可用的原因

pass

：在spec中遵循_id

，然后再次运行它

describe '#create' do
it "should require logged-in user to create relationship" do
  post :create, followed_id: user.id
  expect{
    Relationship.create
  }.to change(Relationship, :count).by(1)
  redirect_to root_path
end

结束

结果如下：

  describe '#create' do
    let!(:followed) { create(:user) }
    it "should require logged-in user to create relationship" do
      expect{
        post :create, followed_id: followed.id
      }.to change(Relationship, :count).by(1)
      redirect_to root_path
    end
  end

---

您没有发布

followed_id

参数。我的意思是，在控制器规范中，当您发出post请求时，您的期望似乎是手动创建一个关系，然后检查计数。这实际上不是在测试你的控制器。@AaronWashburn你能解释一下你的评论吗，也许可以用一个例子或教程。thanks@Jony，您正在调用Relationship.create，然后检查是否已创建关系。这是在测试你的模型，而不是你的控制器。如果查看销毁规范，则直接使用销毁控制器操作来更改关系计数。您希望对创建操作执行相同的操作。然后，不要忘记正确命名您的测试描述，这样其他人就可以知道您正在尝试做什么。

describe '#create' do
it "should require logged-in user to create relationship" do
  post :create, followed_id: user.id
  expect{
    Relationship.create
  }.to change(Relationship, :count).by(1)
  redirect_to root_path
end

  describe '#create' do
    let!(:followed) { create(:user) }
    it "should require logged-in user to create relationship" do
      expect{
        post :create, followed_id: followed.id
      }.to change(Relationship, :count).by(1)
      redirect_to root_path
    end
  end