mirror of
https://github.com/teamcapybara/capybara.git
synced 2022-11-09 12:08:07 -05:00
563 lines
20 KiB
Ruby
563 lines
20 KiB
Ruby
# frozen_string_literal: true
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require 'timeout'
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require 'nokogiri'
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require 'xpath'
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require 'forwardable'
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require 'capybara/config'
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module Capybara
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class CapybaraError < StandardError; end
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class DriverNotFoundError < CapybaraError; end
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class FrozenInTime < CapybaraError; end
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class ElementNotFound < CapybaraError; end
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class ModalNotFound < CapybaraError; end
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class Ambiguous < ElementNotFound; end
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class ExpectationNotMet < ElementNotFound; end
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class FileNotFound < CapybaraError; end
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class UnselectNotAllowed < CapybaraError; end
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class NotSupportedByDriverError < CapybaraError; end
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class InfiniteRedirectError < CapybaraError; end
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class ScopeError < CapybaraError; end
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class WindowError < CapybaraError; end
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class ReadOnlyElementError < CapybaraError; end
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class << self
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extend Forwardable
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# DelegateCapybara global configurations
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# @!method app
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# See {Capybara.configure}
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# @!method reuse_server
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# See {Capybara.configure}
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# @!method threadsafe
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# See {Capybara.configure}
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# @!method server
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# See {Capybara.configure}
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# @!method default_driver
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# See {Capybara.configure}
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# @!method javascript_driver
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# See {Capybara.configure}
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# @!method allow_gumbo
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# See {Capybara.configure}
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Config::OPTIONS.each do |method|
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def_delegators :config, method, "#{method}="
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end
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# Delegate Capybara global configurations
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# @!method default_selector
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# See {Capybara.configure}
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# @!method default_max_wait_time
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# See {Capybara.configure}
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# @!method app_host
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# See {Capybara.configure}
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# @!method always_include_port
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# See {Capybara.configure}
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SessionConfig::OPTIONS.each do |method|
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def_delegators :config, method, "#{method}="
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end
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##
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#
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# Configure Capybara to suit your needs.
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#
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# Capybara.configure do |config|
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# config.run_server = false
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# config.app_host = 'http://www.google.com'
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# end
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#
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# === Configurable options
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#
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# [app_host = String/nil] The default host to use when giving a relative URL to visit, must be a valid URL e.g. http://www.example.com
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# [always_include_port = Boolean] Whether the Rack server's port should automatically be inserted into every visited URL unless another port is explicitly specified (Default: false)
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# [asset_host = String] Where dynamic assets are hosted - will be prepended to relative asset locations if present (Default: nil)
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# [run_server = Boolean] Whether to start a Rack server for the given Rack app (Default: true)
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# [raise_server_errors = Boolean] Should errors raised in the server be raised in the tests? (Default: true)
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# [server_errors = Array\<Class\>] Error classes that should be raised in the tests if they are raised in the server and Capybara.raise_server_errors is true (Default: [Exception])
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# [default_selector = :css/:xpath] Methods which take a selector use the given type by default (Default: :css)
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# [default_max_wait_time = Numeric] The maximum number of seconds to wait for asynchronous processes to finish (Default: 2)
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# [ignore_hidden_elements = Boolean] Whether to ignore hidden elements on the page (Default: true)
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# [automatic_reload = Boolean] Whether to automatically reload elements as Capybara is waiting (Default: true)
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# [save_path = String] Where to put pages saved through save_(page|screenshot), save_and_open_(page|screenshot) (Default: Dir.pwd)
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# [automatic_label_click = Boolean] Whether Node#choose, Node#check, Node#uncheck will attempt to click the associated label element if the checkbox/radio button are non-visible (Default: false)
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# [enable_aria_label = Boolean] Whether fields, links, and buttons will match against aria-label attribute (Default: false)
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# [reuse_server = Boolean] Reuse the server thread between multiple sessions using the same app object (Default: true)
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# [threadsafe = Boolean] Whether sessions can be configured individually (Default: false)
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# [server = Symbol] The name of the registered server to use when running the app under test (Default: :webrick)
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# [default_set_options = Hash] The default options passed to Node::set (Default: {})
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# [test_id = Symbol/String/nil] Optional attribute to match locator aginst with builtin selectors along with id (Default: nil)
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# [predicates_wait = Boolean] Whether Capybaras predicate matchers use waiting behavior by default (Default: true)
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# [default_normalize_ws = Boolean] Whether text predicates and matchers use normalize whitespace behaviour (Default: false)
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# [allow_gumbo = Boolean] When `nokogumbo` is available, whether it will be used to parse HTML strings (Default: false)
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#
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# === DSL Options
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#
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# when using capybara/dsl, the following options are also available:
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#
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# [default_driver = Symbol] The name of the driver to use by default. (Default: :rack_test)
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# [javascript_driver = Symbol] The name of a driver to use for JavaScript enabled tests. (Default: :selenium)
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#
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def configure
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yield config
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end
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##
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#
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# Register a new driver for Capybara.
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#
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# Capybara.register_driver :rack_test do |app|
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# Capybara::RackTest::Driver.new(app)
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# end
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#
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# @param [Symbol] name The name of the new driver
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# @yield [app] This block takes a rack app and returns a Capybara driver
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# @yieldparam [<Rack>] app The rack application that this driver runs against. May be nil.
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# @yieldreturn [Capybara::Driver::Base] A Capybara driver instance
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#
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def register_driver(name, &block)
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drivers[name] = block
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end
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##
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#
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# Register a new server for Capybara.
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#
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# Capybara.register_server :webrick do |app, port, host|
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# require 'rack/handler/webrick'
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# Rack::Handler::WEBrick.run(app, ...)
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# end
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#
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# @param [Symbol] name The name of the new driver
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# @yield [app, port, host] This block takes a rack app and a port and returns a rack server listening on that port
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# @yieldparam [<Rack>] app The rack application that this server will contain.
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# @yieldparam port The port number the server should listen on
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# @yieldparam host The host/ip to bind to
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#
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def register_server(name, &block)
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servers[name.to_sym] = block
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end
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##
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#
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# Add a new selector to Capybara. Selectors can be used by various methods in Capybara
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# to find certain elements on the page in a more convenient way. For example adding a
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# selector to find certain table rows might look like this:
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#
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# Capybara.add_selector(:row) do
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# xpath { |num| ".//tbody/tr[#{num}]" }
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# end
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#
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# This makes it possible to use this selector in a variety of ways:
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#
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# find(:row, 3)
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# page.find('table#myTable').find(:row, 3).text
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# page.find('table#myTable').has_selector?(:row, 3)
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# within(:row, 3) { expect(page).to have_content('$100.000') }
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#
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# Here is another example:
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#
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# Capybara.add_selector(:id) do
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# xpath { |id| XPath.descendant[XPath.attr(:id) == id.to_s] }
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# end
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#
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# Note that this particular selector already ships with Capybara.
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#
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# @param [Symbol] name The name of the selector to add
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# @yield A block executed in the context of the new {Capybara::Selector}
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#
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def add_selector(name, **options, &block)
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Capybara::Selector.add(name, **options, &block)
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end
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##
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#
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# Modify a selector previously created by {Capybara.add_selector}.
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# For example, adding a new filter to the :button selector to filter based on
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# button style (a class) might look like this
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#
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# Capybara.modify_selector(:button) do
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# filter (:btn_style, valid_values: [:primary, :secondary]) { |node, style| node[:class].split.include? "btn-#{style}" }
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# end
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#
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#
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# @param [Symbol] name The name of the selector to modify
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# @yield A block executed in the context of the existing {Capybara::Selector}
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#
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def modify_selector(name, &block)
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Capybara::Selector.update(name, &block)
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end
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def drivers
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@drivers ||= {}
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end
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def servers
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@servers ||= {}
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end
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# Wraps the given string, which should contain an HTML document or fragment
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# in a {Capybara::Node::Simple} which exposes all {Capybara::Node::Matchers},
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# {Capybara::Node::Finders} and {Capybara::Node::DocumentMatchers}. This allows you to query
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# any string containing HTML in the exact same way you would query the current document in a Capybara
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# session.
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#
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# Example: A single element
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#
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# node = Capybara.string('<a href="foo">bar</a>')
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# anchor = node.first('a')
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# anchor[:href] #=> 'foo'
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# anchor.text #=> 'bar'
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#
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# Example: Multiple elements
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#
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# node = Capybara.string <<-HTML
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# <ul>
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# <li id="home">Home</li>
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# <li id="projects">Projects</li>
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# </ul>
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# HTML
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#
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# node.find('#projects').text # => 'Projects'
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# node.has_selector?('li#home', text: 'Home')
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# node.has_selector?('#projects')
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# node.find('ul').find('li:first-child').text # => 'Home'
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#
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# @param [String] html An html fragment or document
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# @return [Capybara::Node::Simple] A node which has Capybara's finders and matchers
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#
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def string(html)
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Capybara::Node::Simple.new(html)
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end
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##
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#
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# Runs Capybara's default server for the given application and port
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# under most circumstances you should not have to call this method
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# manually.
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#
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# @param [Rack Application] app The rack application to run
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# @param [Integer] port The port to run the application on
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#
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def run_default_server(app, port)
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servers[:puma].call(app, port, server_host)
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end
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##
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#
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# @return [Symbol] The name of the driver currently in use
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#
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def current_driver
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if threadsafe
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Thread.current['capybara_current_driver']
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else
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@current_driver
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end || default_driver
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end
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alias_method :mode, :current_driver
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def current_driver=(name)
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if threadsafe
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Thread.current['capybara_current_driver'] = name
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else
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@current_driver = name
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end
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end
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##
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#
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# Use the default driver as the current driver
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#
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def use_default_driver
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self.current_driver = nil
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end
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##
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#
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# Yield a block using a specific driver
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#
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def using_driver(driver)
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previous_driver = Capybara.current_driver
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Capybara.current_driver = driver
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yield
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ensure
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self.current_driver = previous_driver
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end
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##
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#
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# Yield a block using a specific wait time
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#
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def using_wait_time(seconds)
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previous_wait_time = Capybara.default_max_wait_time
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Capybara.default_max_wait_time = seconds
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yield
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ensure
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Capybara.default_max_wait_time = previous_wait_time
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end
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##
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#
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# The current Capybara::Session based on what is set as Capybara.app and Capybara.current_driver
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#
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# @return [Capybara::Session] The currently used session
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#
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def current_session
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specified_session || session_pool["#{current_driver}:#{session_name}:#{app.object_id}"]
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end
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##
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#
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# Reset sessions, cleaning out the pool of sessions. This will remove any session information such
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# as cookies.
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#
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def reset_sessions!
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# reset in reverse so sessions that started servers are reset last
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session_pool.reverse_each { |_mode, session| session.reset! }
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end
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alias_method :reset!, :reset_sessions!
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##
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#
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# The current session name.
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#
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# @return [Symbol] The name of the currently used session.
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#
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def session_name
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if threadsafe
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Thread.current['capybara_session_name'] ||= :default
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else
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@session_name ||= :default
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end
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end
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def session_name=(name)
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if threadsafe
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Thread.current['capybara_session_name'] = name
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else
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@session_name = name
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end
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end
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##
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#
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# Yield a block using a specific session name or Capybara::Session instance.
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#
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def using_session(name_or_session)
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previous_session_info = {
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specified_session: specified_session,
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session_name: session_name,
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current_driver: current_driver,
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app: app
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}
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self.specified_session = self.session_name = nil
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if name_or_session.is_a? Capybara::Session
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self.specified_session = name_or_session
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else
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self.session_name = name_or_session
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end
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yield
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ensure
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self.session_name, self.specified_session = previous_session_info.values_at(:session_name, :specified_session)
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self.current_driver, self.app = previous_session_info.values_at(:current_driver, :app) if threadsafe
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end
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##
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#
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# Parse raw html into a document using Nokogiri, and adjust textarea contents as defined by the spec.
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#
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# @param [String] html The raw html
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# @return [Nokogiri::HTML::Document] HTML document
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#
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def HTML(html) # rubocop:disable Naming/MethodName
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if Nokogiri.respond_to?(:HTML5) && Capybara.allow_gumbo # Nokogumbo installed and allowed for use
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Nokogiri::HTML5(html).tap do |document|
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document.xpath('//textarea').each do |textarea|
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# The Nokogumbo HTML5 parser already returns spec compliant contents
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textarea['_capybara_raw_value'] = textarea.content
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end
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end
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else
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Nokogiri::HTML(html).tap do |document|
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document.xpath('//textarea').each do |textarea|
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textarea['_capybara_raw_value'] = textarea.content.sub(/\A\n/, '')
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end
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end
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end
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end
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def session_options
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config.session_options
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end
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private
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def config
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@config ||= Capybara::Config.new
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end
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def session_pool
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@session_pool ||= Hash.new do |hash, name|
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hash[name] = Capybara::Session.new(current_driver, app)
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end
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end
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def specified_session
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if threadsafe
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Thread.current['capybara_specified_session']
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else
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@specified_session ||= nil
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end
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end
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def specified_session=(session)
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if threadsafe
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Thread.current['capybara_specified_session'] = session
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else
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@specified_session = session
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end
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end
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end
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self.default_driver = nil
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self.current_driver = nil
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self.server_host = nil
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module Driver; end
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module RackTest; end
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module Selenium; end
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require 'capybara/helpers'
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require 'capybara/session'
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require 'capybara/window'
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require 'capybara/server'
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require 'capybara/selector'
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require 'capybara/result'
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require 'capybara/version'
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require 'capybara/queries/base_query'
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require 'capybara/queries/selector_query'
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require 'capybara/queries/text_query'
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require 'capybara/queries/title_query'
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require 'capybara/queries/current_path_query'
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require 'capybara/queries/match_query'
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require 'capybara/queries/ancestor_query'
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require 'capybara/queries/sibling_query'
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require 'capybara/queries/style_query'
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require 'capybara/node/finders'
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require 'capybara/node/matchers'
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require 'capybara/node/actions'
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require 'capybara/node/document_matchers'
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require 'capybara/node/simple'
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require 'capybara/node/base'
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require 'capybara/node/element'
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require 'capybara/node/document'
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require 'capybara/driver/base'
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require 'capybara/driver/node'
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require 'capybara/rack_test/driver'
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require 'capybara/rack_test/node'
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require 'capybara/rack_test/form'
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require 'capybara/rack_test/browser'
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require 'capybara/rack_test/css_handlers.rb'
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require 'capybara/selenium/node'
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require 'capybara/selenium/driver'
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end
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Capybara.register_server :default do |app, port, _host|
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Capybara.run_default_server(app, port)
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end
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Capybara.register_server :webrick do |app, port, host, **options|
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require 'rack/handler/webrick'
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options = { Host: host, Port: port, AccessLog: [], Logger: WEBrick::Log.new(nil, 0) }.merge(options)
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Rack::Handler::WEBrick.run(app, options)
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end
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Capybara.register_server :puma do |app, port, host, **options|
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begin
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require 'rack/handler/puma'
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rescue LoadError
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raise LoadError, 'Capybara is unable to load `puma` for its server, please add `puma` to your project or specify a different server via something like `Capybara.server = :webrick`.'
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else
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unless Rack::Handler::Puma.respond_to?(:config)
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raise LoadError, 'Capybara requires `puma` version 3.8.0 or higher, please upgrade `puma` or register and specify your own server block'
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end
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end
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# If we just run the Puma Rack handler it installs signal handlers which prevent us from being able to interrupt tests.
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# Therefore construct and run the Server instance ourselves.
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# Rack::Handler::Puma.run(app, { Host: host, Port: port, Threads: "0:4", workers: 0, daemon: false }.merge(options))
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options = { Host: host, Port: port, Threads: '0:4', workers: 0, daemon: false }.merge(options)
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conf = Rack::Handler::Puma.config(app, options)
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events = conf.options[:Silent] ? ::Puma::Events.strings : ::Puma::Events.stdio
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|
|
|
events.log 'Capybara starting Puma...'
|
|
events.log "* Version #{Puma::Const::PUMA_VERSION} , codename: #{Puma::Const::CODE_NAME}"
|
|
events.log "* Min threads: #{conf.options[:min_threads]}, max threads: #{conf.options[:max_threads]}"
|
|
|
|
Puma::Server.new(conf.app, events, conf.options).tap do |s|
|
|
s.binder.parse conf.options[:binds], s.events
|
|
s.min_threads, s.max_threads = conf.options[:min_threads], conf.options[:max_threads]
|
|
end.run.join
|
|
end
|
|
|
|
Capybara.configure do |config|
|
|
config.always_include_port = false
|
|
config.run_server = true
|
|
config.server = :default
|
|
config.default_selector = :css
|
|
config.default_max_wait_time = 2
|
|
config.ignore_hidden_elements = true
|
|
config.default_host = 'http://www.example.com'
|
|
config.automatic_reload = true
|
|
config.match = :smart
|
|
config.exact = false
|
|
config.exact_text = false
|
|
config.raise_server_errors = true
|
|
config.server_errors = [Exception]
|
|
config.visible_text_only = false
|
|
config.automatic_label_click = false
|
|
config.enable_aria_label = false
|
|
config.reuse_server = true
|
|
config.default_set_options = {}
|
|
config.test_id = nil
|
|
config.predicates_wait = true
|
|
config.default_normalize_ws = false
|
|
config.allow_gumbo = false
|
|
end
|
|
|
|
Capybara.register_driver :rack_test do |app|
|
|
Capybara::RackTest::Driver.new(app)
|
|
end
|
|
|
|
Capybara.register_driver :selenium do |app|
|
|
Capybara::Selenium::Driver.new(app)
|
|
end
|
|
|
|
Capybara.register_driver :selenium_headless do |app|
|
|
Capybara::Selenium::Driver.load_selenium
|
|
browser_options = ::Selenium::WebDriver::Firefox::Options.new
|
|
browser_options.args << '-headless'
|
|
Capybara::Selenium::Driver.new(app, browser: :firefox, options: browser_options)
|
|
end
|
|
|
|
Capybara.register_driver :selenium_chrome do |app|
|
|
browser_options = ::Selenium::WebDriver::Chrome::Options.new.tap do |opts|
|
|
# Workaround https://bugs.chromium.org/p/chromedriver/issues/detail?id=2650&q=load&sort=-id&colspec=ID%20Status%20Pri%20Owner%20Summary
|
|
opts.args << '--disable-site-isolation-trials'
|
|
end
|
|
Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
|
|
end
|
|
|
|
Capybara.register_driver :selenium_chrome_headless do |app|
|
|
Capybara::Selenium::Driver.load_selenium
|
|
browser_options = ::Selenium::WebDriver::Chrome::Options.new.tap do |opts|
|
|
opts.args << '--headless'
|
|
opts.args << '--disable-gpu' if Gem.win_platform?
|
|
# Workaround https://bugs.chromium.org/p/chromedriver/issues/detail?id=2650&q=load&sort=-id&colspec=ID%20Status%20Pri%20Owner%20Summary
|
|
opts.args << '--disable-site-isolation-trials'
|
|
end
|
|
Capybara::Selenium::Driver.new(app, browser: :chrome, options: browser_options)
|
|
end
|