ruby-on-rails - RSpec 的 Rails 帖子抛出 "no route matches"

Question

我有路线定义

post '/session/create' => 'sessions#create', as: 'create_session'

Controller

class SessionsController < ApplicationController
  respond_to :json
  skip_before_filter :verify_authenticity_token, :only => :create

  def create
   # do some staff
  end
end

如果我使用 RestConsole 发送帖子请求 - 它的工作原理应该如此，但是如果我尝试从 RSpec 测试发送帖子(如下所示) - 它会抛出异常。

require 'spec_helper'

describe SessionsController do
  let(:user_data_to_post) { FactoryGirl.attributes_for :user }

  let(:user) do
    mock_model User
  end

  describe 'create new session should be successful' do 
    before do 
      post(create_session_path, user_data_to_post.to_json,
          {'HTTP_CONTENT_TYPE' => 'application/json'})
    end

    it "should call search_by_email of User model" do
      User.should_recive(:search_by_email).with(user_data_to_post[:email])
    end
  end
end

错误信息:

Failure/Error: post(create_session_path, user_data_to_post.to_json,
ActionController::UrlGenerationError:
   No route matches {:HTTP_CONTENT_TYPE=>"application/json", :controller=>"sessions",     :action=>"/session/create"}
 # ./spec/controllers/sessions_controller_spec.rb:13:in `block (3 levels) in <top (required)>'

Answer 1

尝试:

post :create, user_data_to_post, format: :json

首先，post 方法需要您传递给初始describe 的 Controller 上的操作名称。由于您传递了路径，因此它将整个路径视为操作名称，这显然没有被路由。

其次，post方法签名位于post(action_name, raw_post_data(仅在字符串时分配), params=nil, session=nil, flash=nil)行中(事实上​​，它是 post(action_name, *args) 但这就是处理这些参数的方式。正因为您想修改 header ，您需要直接在请求上执行此操作:

@request['HTTP_CONTENT_TYPE'] = 'application/json'

或传递format: :json 以及参数