使用Rspec，如何在Rails 3.0.11中測試我的控制器的JSON格式？

Question

我已經瀏覽了網頁，但是，唉，我似乎無法讓Rspec正確發送內容類型，所以我可以測試我的JSON API。 我正在使用RABL gem用於模板，Rails 3.0.11和Ruby 1.9.2-p180。

我的卷曲輸出，工作正常（應該是401，我知道）：

mrsnuggles:tmp gaahrdner$ curl -i -H "Accept: application/json" -X POST -d @bleh http://localhost:3000/applications
HTTP/1.1 403 Forbidden 
Content-Type: application/json; charset=utf-8
Cache-Control: no-cache
X-Ua-Compatible: IE=Edge
X-Runtime: 0.561638
Server: WEBrick/1.3.1 (Ruby/1.9.2/2011-02-18)
Date: Tue, 06 Mar 2012 01:10:51 GMT
Content-Length: 74
Connection: Keep-Alive
Set-Cookie: _session_id=8e8b73b5a6e5c95447aab13dafd59993; path=/; HttpOnly

{"status":"error","message":"You are not authorized to access this page."}

我的一個測試用例中的示例：

describe ApplicationsController do
  render_views
  disconnect_sunspot

  let(:application) { Factory.create(:application) }

  subject { application }

  context "JSON" do

    describe "creating a new application" do

      context "when not authorized" do
        before do
          json = { :application => { :name => "foo", :description => "bar" } }
          request.env['CONTENT_TYPE'] = 'application/json'
          request.env['RAW_POST_DATA'] = json
          post :create
        end 

        it "should not allow creation of an application" do
          Application.count.should == 0
        end 

        it "should respond with a 403" do
          response.status.should eq(403)
        end 

        it "should have a status and message key in the hash" do
          JSON.parse(response.body)["status"] == "error"
          JSON.parse(response.body)["message"] =~ /authorized/
        end 
      end 

      context "authorized" do
      end 
    end
  end
end

這些測試從未通過，我總是被重定向，我的內容類型總是text/html ，無論我在前面的塊中指定類型如何：

# nope
before do
  post :create, {}, { :format => :json }
end

# nada
before do
  post :create, :format => Mime::JSON
end

# nuh uh
before do
  request.env['ACCEPT'] = 'application/json'
  post :create, { :foo => :bar }
end

這是rspec輸出：

Failures:

  1) ApplicationsController JSON creating a new application when not authorized should respond with a 403
     Failure/Error: response.status.should eq(403)

       expected 403
            got 302

       (compared using ==)
     # ./spec/controllers/applications_controller_spec.rb:31:in `block (5 levels) in <top (required)>'

  2) ApplicationsController JSON creating a new application when not authorized should have a status and message key in the hash
     Failure/Error: JSON.parse(response.body)["status"] == "errors"
     JSON::ParserError:
       756: unexpected token at '<html><body>You are being <a href="http://test.host/">redirected</a>.</body></html>'
     # ./spec/controllers/applications_controller_spec.rb:35:in `block (5 levels) in <top (required)>'

正如您所看到的，我正在獲取HTML格式的302重定向，即使我正在嘗試指定'application / json'。

這是我的application_controller.rb ，其中包含rescue_from位：

class ApplicationController < ActionController::Base

 rescue_from ActiveRecord::RecordNotFound, :with => :not_found

  protect_from_forgery
  helper_method :current_user
  helper_method :remove_dns_record

 rescue_from CanCan::AccessDenied do |exception|
    flash[:alert] = exception.message
    respond_to do |format|
      h = { :status => "error", :message => exception.message }
      format.html { redirect_to root_url }
      format.json { render :json => h, :status => :forbidden }
      format.xml  { render :xml => h, :status => :forbidden }
    end 
  end

  private

  def not_found(exception)
    respond_to do |format|
      h = { :status => "error", :message => exception.message }
      format.html { render :file => "#{RAILS_ROOT}/public/404.html", :status => :not_found }
      format.json { render :json => h, :status => :not_found }
      format.xml  { render :xml => h, :status => :not_found }
    end
  end
end

還有applications_controller.rb ，特別是我正在嘗試測試的'create'動作。 它目前相當丑陋，因為我正在使用state_machine並覆蓋delete方法。

  def create
    # this needs to be cleaned up and use accepts_attributes_for
    @application = Application.new(params[:application])
    @environments = params[:application][:environment_ids]
    @application.environment_ids<<@environments unless @environments.blank?

    if params[:site_bindings] == "new"
      @site = Site.new(:name => params[:application][:name])
      @environments.each do |e|
        @site.siteenvs << Siteenv.new(:environment_id => e)
      end
    end

    if @site
      @application.sites << @site
    end

    if @application.save
      if @site
        @site.siteenvs.each do |se|
          appenv = @application.appenvs.select {|e| e.environment_id == se.environment_id }
          se.appenv = appenv.first
          se.save
        end
      end
      flash[:success] = "New application created."
      respond_with(@application, :location => @application)
    else
      render 'new'
    end

    # super stinky :(
    @application.change_servers_on_appenvs(params[:servers]) unless params[:servers].blank?
    @application.save
  end

我在這里查看了源代碼： https ： //github.com/rails/rails/blob/master/actionpack/lib/action_controller/metal/responder.rb ，它似乎應該正確響應，以及堆棧溢出問題的數量似乎有類似的問題和可能的解決方案，但沒有一個適合我。

我究竟做錯了什么？

Answer 1

我意識到設置:format => :json是一種解決方案（如上所述）。 但是，我想測試客戶端到API的相同條件。 我的客戶端不會設置:format參數，而是設置Accept HTTP標頭。 如果您對此解決方案感興趣，請使用以下內容：

# api/v1/test_controller_spec.rb
require 'spec_helper.rb'
describe Api::V1::TestController do
  render_views
  context "when request sets accept => application/json" do
    it "should return successful response" do
      request.accept = "application/json"
      get :test
      response.should be_success
    end
  end
end

Answer 2

嘗試在請求的params哈希中移動:format鍵，如下所示：

describe ApplicationsController do
  render_views
  disconnect_sunspot

  let(:application) { Factory.create(:application) }

  subject { application }

  context "JSON" do

    describe "creating a new application" do

      context "when not authorized" do
        it "should not allow creation of an application" do
          params = { :format => 'json', :application => { :name => "foo", :description => "bar" } }
          post :create, params 
          Expect(Application.count).to eq(0)
          expect(response.status).to eq(403)
          expect(JSON.parse(response.body)["status"]).to eq("error")
          expect(JSON.parse(response.body)["message"]).to match(/authorized/)
        end 


      end 

      context "authorized" do
      end 
    end
  end
end

讓我知道事情的后續！ 這就是我設置測試的方式，他們工作得很好！

使用Rspec，如何在Rails 3.0.11中測試我的控制器的JSON格式？

問題描述

2 個解決方案

解決方案1
65 2012-10-11 02:58:44

解決方案2
60 已采納 2012-03-06 02:27:47

使用Rspec，如何在Rails 3.0.11中測試我的控制器的JSON格式？

問題描述

2 個解決方案

解決方案1 65 2012-10-11 02:58:44

解決方案2 60 已采納 2012-03-06 02:27:47

解決方案1
65 2012-10-11 02:58:44

解決方案2
60 已采納 2012-03-06 02:27:47