Integrate Capybara in SInatra app with rspec result always in 504 tests - ruby

Question

I don't get capybara working with my modular sinatra app. I created a small test app and have the same issue. I get always a 504 Timeout Error and i think that the app isn't really loaded by Capybara regardless the Line Capybara.app = Testapp in the acceptance_helper.
Browser Firefox opens when test is running but don't go to any URL and shows always a blank site.
When i do the same test only with rspec it works (second one).
What i'm doing wrong?
My Setup:
OS: Win 7 Professional 64-bit
Ruby version: ruby 2.2.2p95 (2015-04-13 revision 50295) [x64-mingw32]
Firefox version: 40.0.3
gem versions
- sinatra (1.4.6)
- rspec (3.3.0)
- capybara (2.7.1)
- selenium-webdriver (2.53.4)
- thin (1.5.1)
- rack (1.6.4)
- rack-test (0.6.3)
App structure:
test_sinatra_capybara
|
|- testapp.rb
|- spec
| |- spec_helper.rb
| |- acceptance_helper.rb
| |- testapp_spec.rb
|- views
| |- index.slim
testapp.rb
require 'sinatra'
require 'sinatra/base'
require 'slim'
class Testapp < Sinatra::Base
get '/' do
slim :index
end
end
index.slim
#test-id
| Willkommen
spec_helper.rb
require 'rspec'
require 'rack/test'
require_relative '../testapp'
Testapp.environment = :test
module RSpecMixin
include Rack::Test::Methods
def app() Testapp end
end
RSpec.configure do |config|
config.include RSpecMixin
# Use color in STDOUT
config.color = true
# Use the specified formatter
config.formatter = :documentation
config.expect_with :rspec do |expectations|
expectations.include_chain_clauses_in_custom_matcher_descriptions = true
end
config.mock_with :rspec do |mocks|
mocks.verify_partial_doubles = true
end
end
acceptance_helper.rb
require File.dirname(__FILE__) + '/spec_helper'
require 'capybara'
require 'capybara/rspec'
Capybara.default_driver = :selenium
Capybara.app = Testapp
RSpec.configure do |config|
config.include Capybara::DSL
config.include Capybara::RSpecMatchers
end
testapp_spec.rb
require File.dirname(__FILE__) + '/acceptance_helper'
describe 'URLs that require login' do
it "start page capybara" do
# I tried both
visit '/'
# visit 'http:localhost:4567'
page.should have_content("Willkommen")
end
it "start page rspec" do
get "/"
expect(last_response.body).to include("Willkommen")
end
end
So as i said, last test is working:
Finished in 12.91 seconds (files took 2.54 seconds to load)
2 examples, 1 failure
Failed examples:
rspec ./spec/testapp_spec.rb:4 # URLs that require login start page capybara
Error on First test:
Selenium::WebDriver::Error::WebDriverError:
unexpected response, code=504, content-type="text/html"

Answer 1

Running the exact code posted works fine for me, which I'm guessing means one of two things. Either the version of Firefox you're using is outdated (make sure you're using 47.0.1) or you're on a machine that has a proxy server or firewall that is interfering with requests to 127.0.0.1:<some random port>. The default Capybara config starts up a server on 127.0.0.1:<random port> to handle requests for the app under test. If those connections are blocked or proxied elsewhere it will obviously prevent things from working properly. If you need to bind to a different interface or set a fixed port to get around corporate firewall/proxy restrictions you can do that by setting Capybara.server_host and Capybara.server_port