尽管控制器中存在路由，但没有路由匹配 Rspec 中的删除

Question

我正在测试一系列 API 调用，我收到一个错误，指出应用程序中不存在各种路由动词，尽管它们存在。

据我所知，销毁方法是存在的并且是允许的。问题与 PATCH 相同，但我只是将其限制为 DELETE，因为我预计根本原因可能相同。

为了更正这个问题，我遗漏了什么？

错误：

6) /api/v1/users DELETE /destroy destroys the requested api/v1_user
     Failure/Error: delete api_v1_users_url(user), headers: valid_headers, as: :json

     ActionController::RoutingError:
       No route matches [DELETE] "/api/v1/users.5e9047c21d41c8454835b38b"
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/debug_exceptions.rb:36:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/railties-6.0.2.2/lib/rails/rack/logger.rb:38:in `call_app'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/railties-6.0.2.2/lib/rails/rack/logger.rb:26:in `block in call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/activesupport-6.0.2.2/lib/active_support/tagged_logging.rb:80:in `block in tagged'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/activesupport-6.0.2.2/lib/active_support/tagged_logging.rb:28:in `tagged'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/activesupport-6.0.2.2/lib/active_support/tagged_logging.rb:80:in `tagged'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/railties-6.0.2.2/lib/rails/rack/logger.rb:26:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/request_id.rb:27:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/rack-2.2.2/lib/rack/runtime.rb:22:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/activesupport-6.0.2.2/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/static.rb:126:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/rack-2.2.2/lib/rack/sendfile.rb:110:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/middleware/host_authorization.rb:77:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/railties-6.0.2.2/lib/rails/engine.rb:526:in `call'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/rack-test-1.1.0/lib/rack/mock_session.rb:29:in `request'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/rack-test-1.1.0/lib/rack/test.rb:266:in `process_request'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/rack-test-1.1.0/lib/rack/test.rb:119:in `request'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/testing/integration.rb:270:in `process'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/testing/integration.rb:42:in `delete'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.2.2/lib/action_dispatch/testing/integration.rb:357:in `block (2 levels) in <module:Runner>'
     # ./spec/requests/api/v1/users_spec.rb:101:in `block (4 levels) in <top (required)>'
     # ./spec/requests/api/v1/users_spec.rb:100:in `block (3 levels) in <top (required)>'
     # ./spec/rails_helper.rb:17:in `block (3 levels) in <top (required)>'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/database_cleaner-1.8.4/lib/database_cleaner/generic/base.rb:16:in `cleaning'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/database_cleaner-1.8.4/lib/database_cleaner/configuration.rb:87:in `block (2 levels) in cleaning'
     # /home/etherk1ll/.rvm/gems/ruby-2.7.0/gems/database_cleaner-1.8.4/lib/database_cleaner/configuration.rb:88:in `cleaning'
     # ./spec/rails_helper.rb:16:in `block (2 levels) in <top (required)>'

Finished in 1.33 seconds (files took 3.57 seconds to load)
16 examples, 6 failures

Failed examples:

rspec ./spec/requests/api/v1/users_spec.rb:47 # /api/v1/users POST /create with invalid parameters does not create a new user
rspec ./spec/requests/api/v1/users_spec.rb:54 # /api/v1/users POST /create with invalid parameters renders a JSON response with errors for the new api/v1_user
rspec ./spec/requests/api/v1/users_spec.rb:69 # /api/v1/users PATCH /update with valid parameters updates the requested api/v1_user
rspec ./spec/requests/api/v1/users_spec.rb:77 # /api/v1/users PATCH /update with valid parameters renders a JSON response with the api/v1_user
rspec ./spec/requests/api/v1/users_spec.rb:87 # /api/v1/users PATCH /update with invalid parameters renders a JSON response with errors for the api/v1_user
rspec ./spec/requests/api/v1/users_spec.rb:98 # /api/v1/users DELETE /destroy destroys the requested api/v1_user

测试

describe "DELETE /destroy" do
    it "destroys the requested api/v1_user" do
      user = Api::V1::User.create! valid_attributes
      expect {
        delete api_v1_users_url(user), headers: valid_headers, as: :json
      }.to change(Api::V1::User, :count).by(-1)
    end
  end

users_controller.rb

class Api::V1::UsersController < ApplicationController
  before_action :set_user, only: [:show, :update, :destroy]

  # GET /api/v1/users
  def index
    @users = Api::V1::User.all

    render json: @users
  end

  # GET /api/v1/users/1
  def show
    render json: @user
  end

  # POST /api/v1/users
  def create
    @user = Api::V1::User.new(user_params)

    if @user.save
      render json: @user, status: :created, location: @user
    else
      render json: @user.errors, status: :unprocessable_entity
    end
  end

  # PATCH/PUT /api/v1/users/1
  def update
    if @user.update(user_params)
      render json: @user
    else
      render json: @user.errors, status: :unprocessable_entity
    end
  end

  # DELETE /api/v1/users/1
  def destroy
    @user.destroy
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_user
      @user = Api::V1::User.find(params[:id])
    end

    # Only allow a trusted parameter "white list" through.
    def user_params
      params.require(:user).permit(:first_name, :second_name, :username, :email, :password)
    end
end

routes.rb

Rails.application.routes.draw do

  namespace :api do
    namespace :v1 do
      resources :users
    end
  end
end

Answer 1

也许试试

api_v1_user_path(user)

Answer 2

致那些为任何类似问题而苦苦挣扎的人。问题出在我的嵌套 /api/v1 文件夹结构上，正如上面 Max 所建议的那样，它导致了有点难看的 api_v1_users_url(user)。这源于我使用脚手架而不是手动添加文件。

似乎rails 使用控制器的完整路径来构造对象和关联变量。

我重构了所有 class 声明和 rspec 文件路径，如下所示。

这似乎已经解决了评论中提到的初始代码味道以及初始问题。

➜  api git:(authentication) ✗ tree spec 
spec
├── factories
│   └── users.rb
├── models
├── rails_helper.rb
├── requests
│   └── api
│       └── users_spec.rb
├── routing
│   └── users_routing_spec.rb
├── spec_helper.rb
└── support
    └── factory_bot.rb



➜  api git:(authentication) ✗ tree app 
app
├── channels
│   └── application_cable
│       ├── channel.rb
│       └── connection.rb
├── controllers
│   ├── application_controller.rb
│   ├── concerns
│   └── users_controller.rb
├── jobs
│   └── application_job.rb
├── mailers
│   └── application_mailer.rb
├── models
│   ├── concerns
│   └── user.rb
└── views
    └── layouts
        ├── mailer.html.erb
        └── mailer.text.erb

更正后的 Rspec 测试现在通常如下所示：

  describe "DELETE /destroy" do
    it "destroys the requested user" do
      user = User.create! valid_attributes
      expect {
        delete user_url(user),headers: valid_headers, as: :json
      }.to change(User, :count).by(-1)
    end
  end

删除嵌套声明：

user = Api::V1::User.create! valid_attributes

尽管控制器中存在路由，但没有路由匹配 Rspec 中的删除

No route matches delete in Rspec despite route existing in controller

rspec

ruby-on-rails