How to Use Capybara in Pure Ruby (Without Rails)

How to use Capybara in pure Ruby (without Rails)?

Here's something that seems to work for me:

require 'rubygems'
require 'capybara'
require 'capybara/dsl'

Capybara.run_server = false
Capybara.current_driver = :selenium
Capybara.app_host = 'http://www.google.com'

module MyCapybaraTest
  class Test
    include Capybara::DSL
    def test_google
      visit('/')
    end
  end
end

t = MyCapybaraTest::Test.new
t.test_google

NoMethod error for Capybara without Rails,Rspec or Cucumber

feature and scenario are part of RSpec. This is not loaded by default when using Capybara.

Assuming you want to include the Capybara modified RSpec, instead of doing:

require 'capybara'

Do:

require 'capybara/rspec'

If you just want plain RSpec, you can of course do:

require 'capybara'
require 'rspec'

Using Capybara live without RSpec

You can manually create a Capybara session and use that to interact with your production website. For example, the following will go to Google and get the text:

require 'capybara'

session = Capybara::Session.new(:selenium)
session.visit('https://www.google.com')
puts session.text

Note that neither Capybara nor RSpec require the system under test to be a local Ruby project. For example, the following RSpec test goes to Google and checks that the word "Google" appears:

require 'capybara/rspec'

Capybara.current_driver = :selenium
Capybara.app_host = 'http://www.google.com'

feature "google", :js => true do
    scenario "should have text" do
        visit('/')
        page.should have_content(/Google/)
    end
end

TDD Ruby with Capybara: How to use Capybara to verify specific page values within specific page elements

You just need to expect on the element you wish to check inside - for instance

heading = page.find('li#campaign_1 .media-heading.name')
expect(heading).to have_content('Campaign_1')

Another option (more useful when you have a few things to check) is the within method which scopes what page refers

within 'li#campaign_1 .media-heading.name' do
  # here page will refer to the .name element
  expect(page).to have_content('Campaign_1')
end

Finally, you could just do it all in one expectation using the text or exact_text options

expect(page).to have_css('li#campaign_1 .media-heading.name', text: 'Campaign_1')

Combining a couple of those methods together would give

within 'li#campaign_1' do
  expect(page).to have_css('.media-heading.name', text: 'Campaign_1'
  expect(page).to have_css('.media-heading.country', text: 'United Kingdom')
end

Get raw content of screenshot in capybara, without saving image to disk

PhantomJS provides a renderBase64 method. API Reference

Poltergeist however provides no binding for it.
I just had a quick look, but I think you should be able to fork/patch Poltergeist to include the binding in driver.rb and browser.rb

Here is already a discussion about this: https://github.com/jonleighton/poltergeist/issues/189

Using Capybara to test pure JavaScript application

Here is the original answer from Jonas Nicklas.

You need to require 'capybara/rspec' and set :type => :request.

See the Capybara README section on "Using Capybara with RSpec".

/Jonas

Here is a working example on Github.

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