Rspec 测试以 JSON 形式发布

Question

我在尝试在 Rspec 测试中将 JSON 形式发布到控制器操作时遇到问题：

RSpec.describe RegistrationsController, type: :controller do
  context 'Adding a Valid User' do
    it 'Returns Success Code and User object' do
     @params = { :user => {username: 'name', school: 'school'} }.to_json
     post :create, @params
    end
  end
end

目前我想成功触发发布请求，但总是收到此错误：

Failure/Error: post :create, @params
 AbstractController::ActionNotFound:
   Could not find devise mapping for path "/lnf".

我的路线设置如下：

Rails.application.routes.draw do
 constraints(subdomain: 'api') do
   devise_for :users, path: 'lnf', controllers: { registrations: "registrations" }

   devise_scope :user do
     post "/lnf" => 'registrations#create'
   end
 end
end

Rake 路由输出以下内容：

Prefix Verb              URI Pattern     Controller#Action
user_registration POST   /lnf(.:format)  registrations#create {:subdomain=>"api"}
lnf POST                 /lnf(.:format)  registrations#create {:subdomain=>"api"}

那么我对同一个操作有两个声明？

Answer 1

经过几个小时的艰苦努力，我的测试正确通过并通过执行以下操作以 JSON 形式发布：

require 'rails_helper'

RSpec.describe RegistrationsController, type: :controller do
  before :each do
    request.env['devise.mapping'] = Devise.mappings[:user]
  end
 context 'Adding a Valid User' do
  it 'Returns Success Code and User object' do
   json = { user: { username: "richlewis14", school: "Baden Powell", email: "[email protected]", password: "Password1", password_confirmation: "Password1"}}.to_json
  post :create, json
  expect(response.code).to eq('201')
 end
end
end

我的路线已恢复正常：

Rails.application.routes.draw do
 constraints(subdomain: 'api') do
  devise_for :users, path: 'lnf', controllers: { registrations: "registrations" }
 end
end

在我的测试环境中我必须添加：

config.action_mailer.default_url_options = { host: 'localhost' }

这里的关键是：

request.env['devise.mapping'] = Devise.mappings[:user]

尚未完全确定它的作用，它是我列表中的下一个要找出的内容，但我的测试已开始运行并通过。