Using Rspec, how do I test the JSON format of my controller in Rails 3.0.11?
Solution 1
Try moving the :format
key inside the params hash of the request, like this:
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
Let me know how it goes! thats the way I have set my tests, and they are working just fine!
Solution 2
I realize that setting :format => :json
is one solution (as noted above). However, I wanted to test the same conditions that the clients to my API would use. My clients would not be setting the :format
parameter, instead they would be setting the Accept
HTTP header. If you are interested in this solution, here is what I used:
# 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
gaahrdner
Updated on July 08, 2022Comments
-
gaahrdner almost 2 years
I've scoured the web, but, alas, I just can't seem to get Rspec to correctly send content-type so I can test my JSON API. I'm using the RABL gem for templates, Rails 3.0.11, and Ruby 1.9.2-p180.
My curl output, which works fine (should be a 401, I know):
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."}
Sample from one of my test cases:
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
These tests never pass though, I always get redirected and my content-type is always
text/html
, regardless of how I seem to specify the type in my before block:# 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
Here is the rspec output:
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)>'
As you can see I'm getting the 302 redirect for the HTML format, even though I'm trying to specify 'application/json'.
Here is my
application_controller.rb
, with the rescue_from bit: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
And also
applications_controller.rb
, specifically the 'create' action which is what I'm trying to test. It's fairly ugly at the moment because I'm usingstate_machine
and overriding the delete method.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
I've looked at the source code here: https://github.com/rails/rails/blob/master/actionpack/lib/action_controller/metal/responder.rb, and it seems it should respond correctly, as well as a number of questions on stack overflow that seem to have similar issues and possible solutions, but none work for me.
What am I doing wrong?