How to run Capybara against a Rails server?

问题

I have a test that uses OAuth2 gem to make make an HTTP request:

token = client.auth_code.get_token( code, redirect_uri:redirect_uri )

Capybara does not seem to be running the Rails app as a server:

Faraday::ConnectionFailed:
   Connection refused - connect(2) for "localhost" port 3000

Here is the config:

Capybara.app_host = "http://localhost:3000"
Capybara.run_server = true
Capybara.server_port = 3000
Capybara.register_driver :rack_test do |app|
  Capybara::RackTest::Driver.new app,
    follow_redirects:false
end

Various docs seem to suggest that the above config will run the app as a server, but it does not seem to be the case.

How to run Capybara against a server so that the server responds to HTTP requests?

EDIT: After digging in the Capybara code, it seems that different drivers have different servers. Working with Poltergeist. So perhaps Poltergeist doesn't support running a server.

回答1:

As usual, a small detail was overlooked.

The spec must be tagged as :js. Otherwise it uses Rack::Test and the server is not started.

来源：https://stackoverflow.com/questions/26747081/how-to-run-capybara-against-a-rails-server