【发布时间】：2012-03-23 12:31:03
【问题描述】：
我搜索了网络，但是，唉，我似乎无法让 Rspec 正确发送内容类型，因此我可以测试我的 JSON API。我将 RABL gem 用于模板、Rails 3.0.11 和 Ruby 1.9.2-p180。
我的 curl 输出，效果很好（应该是 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."}
来自我的一个测试用例的示例：
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
但这些测试从未通过，我总是被重定向并且我的内容类型总是text/html，不管我在之前的块中如何指定类型：
# 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
这是 rspec 输出：
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)>'
如您所见，我得到了 HTML 格式的 302 重定向，即使我尝试指定 'application/json'。
这是我的application_controller.rb，带有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
还有applications_controller.rb，特别是我正在尝试测试的“创建”操作。目前它相当难看，因为我正在使用state_machine 并覆盖删除方法。
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
我在这里查看了源代码：https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/metal/responder.rb，它似乎应该正确响应，以及一些关于堆栈溢出的问题似乎有类似的问题和可能的解决方案，但没有一个对我有用.
我做错了什么？
【问题讨论】：
标签： ruby-on-rails json api header rspec