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title category
Capybara Ruby libraries

Navigating

visit articles_path

Clicking links and buttons

click 'Link Text'
click_button
click_link

Interacting with forms

attach_file 'Image', '/path/to/image.jpg'
fill_in 'First Name', with: 'John'

check 'A checkbox'
uncheck 'A checkbox'

choose 'A radio button'

select 'Option', from: 'Select box'
unselect

Limiting

within '.classname' do
  click '...'
end

within_fieldset :id do ... end

Querying

Takes a CSS selector (or XPath if you're into that). Translates nicely into RSpec matchers:

page.should have_no_button("Save")

Use should have_no_* versions with RSpec matchers b/c should_not doesn't wait for a timeout from the driver

page.has_content?
page.has_css?
page.has_no_content?
page.has_no_css?
page.has_no_xpath?
page.has_xpath?
page.has_link?
page.has_no_link?
page.has_button?("Update")
page.has_no_button?
page.has_field?
page.has_no_field?
page.has_checked_field?
page.has_unchecked_field?
page.has_no_table?
page.has_table?
page.has_select?
page.has_no_select?

Finding

find_button
find_by_id
find_field
find_link
locate

Scoping

within '#delivery' do
  fill_in 'Street', with: 'Hello'
end

within :xpath, '//article'
within_fieldset
within_table
within_frame
scope_to

find('#x').fill_in('Street', with: 'Hello')
# same as within

Scripting

execute_script('$("input").trigger('change')')
evaluate_script('window.ga')

Debugging

save_and_open_page

Page

page
  .all('h3')
  .body
  .html
  .source
  .current_host
  .current_path
  .current_url

AJAX

using_wait_time(10) { ... }

Misc

drag
field_labeled

Capybara RSpec matchers

# all matchers have...
  text: 'welcome'
  text: /Hello/
  visible: true
  count: 4
  between: 2..5
  minimum: 2
  maximum: 5
  wait: 10

expect(page).to have_selector '.blank-state'
expect(page).to have_selector 'h1#hola', text: 'Welcome'
expect(page).to have_button
expect(page).to have_checked_field
expect(page).to have_css '...'
expect(page).to have_field
expect(page).to have_link 'Logout',
  href: logout_path
expect(page).to have_select 'Language',
  selected: 'German'
  options: ['Engish', 'German']
  with_options: ['Engish', 'German'] # partial match
expect(page).to have_table '#table'
expect(page).to have_text 'Hello',
  type: :visible | :all
  # alias: have_content
expect(page).to have_unchecked_field
expect(page).to have_xpath

Page object

page.status_code == 200
page.response_headers

Poltergeist

Use poltergeist to integrate PhantomJS.

Capybara.register_driver :poltergeist do |app|
  Capybara::Poltergeist::Driver.new(app, :inspector => true)
end
Capybara.javascript_driver = :poltergeist

Blacklist

config.before :each, :js do
  page.driver.browser.url_blacklist = [
    'fonts.googleapis.com',
    'use.typekit.net',
    'f.vimeocdn.com',
    'player.vimeo.com',
    'www.googletagmanager.com'
  ].flat_map { |domain| [ "http://#{domain}", "https://#{domain}" ] }
end

Debugging

Enable inspector: true and then:

page.driver.debug

Pause execution for a while:

page.driver.pause

Selenium

Accepting confirm() and alert()

accept_alert { ... }
dismiss_confirm { ... }
accept_prompt(with: 'hi') { ... }

Alternatively:

page.driver.browser.switch_to.alert.accept

Updating session

page.set_rack_session(foo: 'bar')

See also