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How to use config method of Capybara Package

Best Capybara code snippet using Capybara.config

capybara.rb

Source:capybara.rb

2require 'timeout'3require 'nokogiri'4require 'xpath'5require 'forwardable'6require 'capybara/config'7module Capybara8  class CapybaraError < StandardError; end9  class DriverNotFoundError < CapybaraError; end10  class FrozenInTime < CapybaraError; end11  class ElementNotFound < CapybaraError; end12  class ModalNotFound < CapybaraError; end13  class Ambiguous < ElementNotFound; end14  class ExpectationNotMet < ElementNotFound; end15  class FileNotFound < CapybaraError; end16  class UnselectNotAllowed < CapybaraError; end17  class NotSupportedByDriverError < CapybaraError; end18  class InfiniteRedirectError < CapybaraError; end19  class ScopeError < CapybaraError; end20  class WindowError < CapybaraError; end21  class ReadOnlyElementError < CapybaraError; end22  class << self23    extend Forwardable24    # DelegateCapybara global configurations25    # @!method app26    #   See {Capybara.configure}27    # @!method reuse_server28    #   See {Capybara.configure}29    # @!method threadsafe30    #   See {Capybara.configure}31    # @!method server32    #   See {Capybara.configure}33    # @!method default_driver34    #   See {Capybara.configure}35    # @!method javascript_driver36    #   See {Capybara.configure}37    # @!method allow_gumbo38    #   See {Capybara.configure}39    Config::OPTIONS.each do |method|40      def_delegators :config, method, "#{method}="41    end42    # Delegate Capybara global configurations43    # @!method default_selector44    #   See {Capybara.configure}45    # @!method default_max_wait_time46    #   See {Capybara.configure}47    # @!method app_host48    #   See {Capybara.configure}49    # @!method always_include_port50    #   See {Capybara.configure}51    SessionConfig::OPTIONS.each do |method|52      def_delegators :config, method, "#{method}="53    end54    ##55    #56    # Configure Capybara to suit your needs.57    #58    #     Capybara.configure do |config|59    #       config.run_server = false60    #       config.app_host   = 'http://www.google.com'61    #     end62    #63    # #### Configurable options64    #65    # - **allow_gumbo** (Boolean = `false`) - When `nokogumbo` is available, whether it will be used to parse HTML strings.66    # - **always_include_port** (Boolean = `false`) - Whether the Rack server's port should automatically be inserted into every visited URL67    #   unless another port is explicitly specified.68    # - **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`.69    # - **asset_host** (String = `nil`) - Where dynamic assets are hosted - will be prepended to relative asset locations if present.70    # - **automatic_label_click** (Boolean = `false`) - Whether {Capybara::Node::Element#choose Element#choose}, {Capybara::Node::Element#check Element#check},71    #   {Capybara::Node::Element#uncheck Element#uncheck} will attempt to click the associated `<label>` element if the checkbox/radio button are non-visible.72    # - **automatic_reload** (Boolean = `true`) - Whether to automatically reload elements as Capybara is waiting.73    # - **default_max_wait_time** (Numeric = `2`) - The maximum number of seconds to wait for asynchronous processes to finish.74    # - **default_normalize_ws** (Boolean = `false`) - Whether text predicates and matchers use normalize whitespace behavior.75    # - **default_selector** (`:css`, `:xpath` = `:css`) - Methods which take a selector use the given type by default. See also {Capybara::Selector}.76    # - **default_set_options** (Hash = `{}`) - The default options passed to {Capybara::Node::Element#set Element#set}.77    # - **enable_aria_label** (Boolean = `false`) - Whether fields, links, and buttons will match against `aria-label` attribute.78    # - **exact** (Boolean = `false`) - Whether locators are matched exactly or with substrings. Only affects selector conditions79    #   written using the `XPath#is` method.80    # - **exact_text** (Boolean = `false`) - Whether the text matchers and `:text` filter match exactly or on substrings.81    # - **ignore_hidden_elements** (Boolean = `true`) - Whether to ignore hidden elements on the page.82    # - **match** (`:one`, `:first`, `:prefer_exact`, `:smart` = `:smart`) - The matching strategy to find nodes.83    # - **predicates_wait** (Boolean = `true`) - Whether Capybara's predicate matchers use waiting behavior by default.84    # - **raise_server_errors** (Boolean = `true`) - Should errors raised in the server be raised in the tests?85    # - **reuse_server** (Boolean = `true`) - Whether to reuse the server thread between multiple sessions using the same app object.86    # - **run_server** (Boolean = `true`) - Whether to start a Rack server for the given Rack app.87    # - **save_path** (String = `Dir.pwd`) - Where to put pages saved through {Capybara::Session#save_page save_page}, {Capybara::Session#save_screenshot save_screenshot},88    #   {Capybara::Session#save_and_open_page save_and_open_page}, or {Capybara::Session#save_and_open_screenshot save_and_open_screenshot}.89    # - **server** (Symbol = `:default` (which uses puma)) - The name of the registered server to use when running the app under test.90    # - **server_errors** (Array\<Class> = `[Exception]`) - Error classes that should be raised in the tests if they are raised in the server91    #   and {configure raise_server_errors} is `true`.92    # - **test_id** (Symbol, String, `nil` = `nil`) - Optional attribute to match locator against with built-in selectors along with id.93    # - **threadsafe** (Boolean = `false`) - Whether sessions can be configured individually.94    # - **w3c_click_offset** (Boolean = 'false') - Whether click offsets should be from element center (true) or top left (false)95    #96    # #### DSL Options97    #98    # When using `capybara/dsl`, the following options are also available:99    #100    # - **default_driver** (Symbol = `:rack_test`) - The name of the driver to use by default.101    # - **javascript_driver** (Symbol = `:selenium`) - The name of a driver to use for JavaScript enabled tests.102    #103    def configure104      yield config105    end106    ##107    #108    # Register a new driver for Capybara.109    #110    #     Capybara.register_driver :rack_test do |app|111    #       Capybara::RackTest::Driver.new(app)112    #     end113    #114    # @param [Symbol] name                    The name of the new driver115    # @yield [app]                            This block takes a rack app and returns a Capybara driver116    # @yieldparam [<Rack>] app                The rack application that this driver runs against. May be nil.117    # @yieldreturn [Capybara::Driver::Base]   A Capybara driver instance118    #119    def register_driver(name, &block)120      drivers[name] = block121    end122    ##123    #124    # Register a new server for Capybara.125    #126    #     Capybara.register_server :webrick do |app, port, host|127    #       require 'rack/handler/webrick'128    #       Rack::Handler::WEBrick.run(app, ...)129    #     end130    #131    # @param [Symbol] name                    The name of the new driver132    # @yield [app, port, host]                This block takes a rack app and a port and returns a rack server listening on that port133    # @yieldparam [<Rack>] app                The rack application that this server will contain.134    # @yieldparam port                        The port number the server should listen on135    # @yieldparam host                        The host/ip to bind to136    #137    def register_server(name, &block)138      servers[name.to_sym] = block139    end140    ##141    #142    # Add a new selector to Capybara. Selectors can be used by various methods in Capybara143    # to find certain elements on the page in a more convenient way. For example adding a144    # selector to find certain table rows might look like this:145    #146    #     Capybara.add_selector(:row) do147    #       xpath { |num| ".//tbody/tr[#{num}]" }148    #     end149    #150    # This makes it possible to use this selector in a variety of ways:151    #152    #     find(:row, 3)153    #     page.find('table#myTable').find(:row, 3).text154    #     page.find('table#myTable').has_selector?(:row, 3)155    #     within(:row, 3) { expect(page).to have_content('$100.000') }156    #157    # Here is another example:158    #159    #     Capybara.add_selector(:id) do160    #       xpath { |id| XPath.descendant[XPath.attr(:id) == id.to_s] }161    #     end162    #163    # Note that this particular selector already ships with Capybara.164    #165    # @param [Symbol] name    The name of the selector to add166    # @yield                  A block executed in the context of the new {Capybara::Selector}167    #168    def add_selector(name, **options, &block)169      Capybara::Selector.add(name, **options, &block)170    end171    ##172    #173    # Modify a selector previously created by {Capybara.add_selector}.174    # For example, adding a new filter to the :button selector to filter based on175    # button style (a class) might look like this176    #177    #     Capybara.modify_selector(:button) do178    #       filter (:btn_style, valid_values: [:primary, :secondary]) { |node, style| node[:class].split.include? "btn-#{style}" }179    #     end180    #181    #182    # @param [Symbol] name    The name of the selector to modify183    # @yield                  A block executed in the context of the existing {Capybara::Selector}184    #185    def modify_selector(name, &block)186      Capybara::Selector.update(name, &block)187    end188    def drivers189      @drivers ||= {}190    end191    def servers192      @servers ||= {}193    end194    # Wraps the given string, which should contain an HTML document or fragment195    # in a {Capybara::Node::Simple} which exposes all {Capybara::Node::Matchers},196    # {Capybara::Node::Finders} and {Capybara::Node::DocumentMatchers}. This allows you to query197    # any string containing HTML in the exact same way you would query the current document in a Capybara198    # session.199    #200    # @example A single element201    #     node = Capybara.string('<a href="foo">bar</a>')202    #     anchor = node.first('a')203    #     anchor[:href] #=> 'foo'204    #     anchor.text #=> 'bar'205    #206    # @example Multiple elements207    #     node = Capybara.string <<-HTML208    #       <ul>209    #         <li id="home">Home</li>210    #         <li id="projects">Projects</li>211    #       </ul>212    #     HTML213    #214    #     node.find('#projects').text # => 'Projects'215    #     node.has_selector?('li#home', text: 'Home')216    #     node.has_selector?('#projects')217    #     node.find('ul').find('li:first-child').text # => 'Home'218    #219    # @param [String] html              An html fragment or document220    # @return [Capybara::Node::Simple]   A node which has Capybara's finders and matchers221    #222    def string(html)223      Capybara::Node::Simple.new(html)224    end225    ##226    #227    # Runs Capybara's default server for the given application and port228    # under most circumstances you should not have to call this method229    # manually.230    #231    # @param [Rack Application] app    The rack application to run232    # @param [Integer] port              The port to run the application on233    #234    def run_default_server(app, port)235      servers[:puma].call(app, port, server_host)236    end237    ##238    #239    # @return [Symbol]    The name of the driver currently in use240    #241    def current_driver242      if threadsafe243        Thread.current['capybara_current_driver']244      else245        @current_driver246      end || default_driver247    end248    alias_method :mode, :current_driver249    def current_driver=(name)250      if threadsafe251        Thread.current['capybara_current_driver'] = name252      else253        @current_driver = name254      end255    end256    ##257    #258    # Use the default driver as the current driver259    #260    def use_default_driver261      self.current_driver = nil262    end263    ##264    #265    # Yield a block using a specific driver266    #267    def using_driver(driver)268      previous_driver = Capybara.current_driver269      Capybara.current_driver = driver270      yield271    ensure272      self.current_driver = previous_driver273    end274    ##275    #276    # Yield a block using a specific wait time277    #278    def using_wait_time(seconds)279      previous_wait_time = Capybara.default_max_wait_time280      Capybara.default_max_wait_time = seconds281      yield282    ensure283      Capybara.default_max_wait_time = previous_wait_time284    end285    ##286    #287    # The current {Capybara::Session} based on what is set as {app} and {current_driver}.288    #289    # @return [Capybara::Session]     The currently used session290    #291    def current_session292      specified_session || session_pool["#{current_driver}:#{session_name}:#{app.object_id}"]293    end294    ##295    #296    # Reset sessions, cleaning out the pool of sessions. This will remove any session information such297    # as cookies.298    #299    def reset_sessions!300      # reset in reverse so sessions that started servers are reset last301      session_pool.reverse_each { |_mode, session| session.reset! }302    end303    alias_method :reset!, :reset_sessions!304    ##305    #306    # The current session name.307    #308    # @return [Symbol]    The name of the currently used session.309    #310    def session_name311      if threadsafe312        Thread.current['capybara_session_name'] ||= :default313      else314        @session_name ||= :default315      end316    end317    def session_name=(name)318      if threadsafe319        Thread.current['capybara_session_name'] = name320      else321        @session_name = name322      end323    end324    ##325    #326    # Yield a block using a specific session name or {Capybara::Session} instance.327    #328    def using_session(name_or_session)329      previous_session_info = {330        specified_session: specified_session,331        session_name: session_name,332        current_driver: current_driver,333        app: app334      }335      self.specified_session = self.session_name = nil336      if name_or_session.is_a? Capybara::Session337        self.specified_session = name_or_session338      else339        self.session_name = name_or_session340      end341      yield342    ensure343      self.session_name, self.specified_session = previous_session_info.values_at(:session_name, :specified_session)344      self.current_driver, self.app = previous_session_info.values_at(:current_driver, :app) if threadsafe345    end346    ##347    #348    # Parse raw html into a document using Nokogiri, and adjust textarea contents as defined by the spec.349    #350    # @param [String] html              The raw html351    # @return [Nokogiri::HTML::Document]      HTML document352    #353    def HTML(html) # rubocop:disable Naming/MethodName354      if Nokogiri.respond_to?(:HTML5) && Capybara.allow_gumbo # Nokogumbo installed and allowed for use355        Nokogiri::HTML5(html).tap do |document|356          document.xpath('//template').each do |template|357            # template elements content is not part of the document358            template.inner_html = ''359          end360          document.xpath('//textarea').each do |textarea|361            # The Nokogumbo HTML5 parser already returns spec compliant contents362            textarea['_capybara_raw_value'] = textarea.content363          end364        end365      else366        Nokogiri::HTML(html).tap do |document|367          document.xpath('//template').each do |template|368            # template elements content is not part of the document369            template.inner_html = ''370          end371          document.xpath('//textarea').each do |textarea|372            textarea['_capybara_raw_value'] = textarea.content.sub(/\A\n/, '')373          end374        end375      end376    end377    def session_options378      config.session_options379    end380  private381    def config382      @config ||= Capybara::Config.new383    end384    def session_pool385      @session_pool ||= Hash.new do |hash, name|386        hash[name] = Capybara::Session.new(current_driver, app)387      end388    end389    def specified_session390      if threadsafe391        Thread.current['capybara_specified_session']392      else393        @specified_session ||= nil394      end395    end396    def specified_session=(session)397      if threadsafe398        Thread.current['capybara_specified_session'] = session399      else400        @specified_session = session401      end402    end403  end404  self.default_driver = nil405  self.current_driver = nil406  self.server_host = nil407  module Driver; end408  module RackTest; end409  module Selenium; end410  require 'capybara/helpers'411  require 'capybara/session'412  require 'capybara/window'413  require 'capybara/server'414  require 'capybara/selector'415  require 'capybara/result'416  require 'capybara/version'417  require 'capybara/queries/base_query'418  require 'capybara/queries/selector_query'419  require 'capybara/queries/text_query'420  require 'capybara/queries/title_query'421  require 'capybara/queries/current_path_query'422  require 'capybara/queries/match_query'423  require 'capybara/queries/ancestor_query'424  require 'capybara/queries/sibling_query'425  require 'capybara/queries/style_query'426  require 'capybara/node/finders'427  require 'capybara/node/matchers'428  require 'capybara/node/actions'429  require 'capybara/node/document_matchers'430  require 'capybara/node/simple'431  require 'capybara/node/base'432  require 'capybara/node/element'433  require 'capybara/node/document'434  require 'capybara/driver/base'435  require 'capybara/driver/node'436  require 'capybara/rack_test/driver'437  require 'capybara/rack_test/node'438  require 'capybara/rack_test/form'439  require 'capybara/rack_test/browser'440  require 'capybara/rack_test/css_handlers.rb'441  require 'capybara/selenium/node'442  require 'capybara/selenium/driver'443end444require 'capybara/registrations/servers'445require 'capybara/registrations/drivers'446Capybara.configure do |config|447  config.always_include_port = false448  config.run_server = true449  config.server = :default450  config.default_selector = :css451  config.default_max_wait_time = 2452  config.ignore_hidden_elements = true453  config.default_host = 'http://www.example.com'454  config.automatic_reload = true455  config.match = :smart456  config.exact = false457  config.exact_text = false458  config.raise_server_errors = true459  config.server_errors = [Exception]460  config.visible_text_only = false461  config.automatic_label_click = false462  config.enable_aria_label = false463  config.reuse_server = true464  config.default_set_options = {}465  config.test_id = nil466  config.predicates_wait = true467  config.default_normalize_ws = false468  config.allow_gumbo = false469  config.w3c_click_offset = false470end...

per_session_config_spec.rb

Source:per_session_config_spec.rb

...10         default_selector default_max_wait_time ignore_hidden_elements11         automatic_reload match exact raise_server_errors visible_text_only12         automatic_label_click enable_aria_label save_path13         asset_host].each do |m|14           expect(session.config.public_send(m)).to eq Capybara.public_send(m)15         end16    end17    it "doesn't change global session when changed" do18      Capybara.threadsafe = true19      host = 'http://my.example.com'20      session = Capybara::Session.new(:rack_test, TestApp) do |config|21        config.default_host = host22        config.automatic_label_click = !config.automatic_label_click23        config.server_errors << ArgumentError24      end25      expect(Capybara.default_host).not_to eq host26      expect(session.config.default_host).to eq host27      expect(Capybara.automatic_label_click).not_to eq session.config.automatic_label_click28      expect(Capybara.server_errors).not_to eq session.config.server_errors29    end30    it "doesn't allow session configuration block when false" do31      Capybara.threadsafe = false32      expect do33        Capybara::Session.new(:rack_test, TestApp) { |config| }34      end.to raise_error 'A configuration block is only accepted when Capybara.threadsafe == true'35    end36    it "doesn't allow session config when false" do37      Capybara.threadsafe = false38      session = Capybara::Session.new(:rack_test, TestApp)39      expect { session.config.default_selector = :title }.to raise_error(/Per session settings are only supported when Capybara.threadsafe == true/)40      expect do41        session.configure do |config|42          config.exact = true43        end44      end.to raise_error(/Session configuration is only supported when Capybara.threadsafe == true/)45    end46    it 'uses the config from the session' do47      Capybara.threadsafe = true48      session = Capybara::Session.new(:rack_test, TestApp) do |config|49        config.default_selector = :link50      end51      session.visit('/with_html')52      expect(session.find('foo').tag_name).to eq 'a'53    end54    it "won't change threadsafe once a session is created" do55      Capybara.threadsafe = true56      Capybara.threadsafe = false57      Capybara::Session.new(:rack_test, TestApp)58      expect { Capybara.threadsafe = true }.to raise_error(/Threadsafe setting cannot be changed once a session is created/)59    end60  end61end...

config

Using AI Code Generation

1  Capybara::Poltergeist::Driver.new(app, {:js_errors => false})2  Capybara::Poltergeist::Driver.new(app, {:js_errors => false})3  Capybara::Poltergeist::Driver.new(app, {:js_errors => false})

config

Using AI Code Generation

1  def search_for(query)2World(MyModule)3When(/^I search for "(.*?)"$/) do |query|4  search_for(query)5Then(/^I should see "(.*?)"$/) do |text|6  page.should have_content(text)7  def search_for(query)8World(MyModule)9When(/^I search for "(.*?)"$/) do |query|10  search_for(query)11Then(/^I should see "(.*?)"$/) do |text|12  page.should have_content(text)13  def search_for(query)14World(MyModule)15When(/^I search for "(.*?)"$/) do |query|16  search_for(query)17Then(/^I should see "(.*?)"$/) do |

config

Using AI Code Generation

1  Capybara::Selenium::Driver.new(app, :browser => :chrome)2  Capybara::Selenium::Driver.new(app, :browser => :chrome)3  Capybara::Selenium::Driver.new(app, :browser => :chrome)4  Capybara::Selenium::Driver.new(app, :browser => :chrome)

config

Using AI Code Generation

1  Capybara::Selenium::Driver.new(app, :browser => :chrome)2World(Capybara::DSL)3  Capybara::Selenium::Driver.new(app, :browser => :chrome)4World(Capybara::DSL)5  Capybara::Selenium::Driver.new(app, :browser => :chrome)6World(Capybara::DSL)7  Capybara::Selenium::Driver.new(app, :browser => :chrome)8World(Capybara::DSL)

config

Using AI Code Generation

1visit('http://www.google.com')2fill_in('q', with: 'Hello World')3click_button('Google Search')4  Capybara::Selenium::Driver.new(app, browser: :chrome)5visit('http://www.google.com')6fill_in('q', with: 'Hello World')7click_button('Google Search')8  Capybara::Selenium::Driver.new(app, browser: :chrome)9visit('http://www.google.com')10fill_in('q', with: 'Hello World')11click_button('Google Search')12  Capybara::Selenium::Driver.new(app, browser: :chrome)13visit('http://www.google.com')14fill_in('q', with: 'Hello World')15click_button('Google Search')

config

Using AI Code Generation

1        visit('/')2    def search_for(query)3        fill_in('q', :with => query)4        click_button('Google Search')5google.search_for('Capybara')6    Capybara::Selenium::Driver.new(app, :browser => :chrome)7session = Capybara::Session.new(:selenium)8session.visit('https://www.google.com')9session.fill_in('q', :with => 'Capybara')10session.click_button('Google Search')11    Capybara::Selenium::Driver.new(app, :browser => :firefox)12session = Capybara::Session.new(:selenium)13session.visit('https://www.google.com')14session.fill_in('q', :with => 'Capybara')15session.click_button('Google Search')16    Capybara::Selenium::Driver.new(app, :browser => :firefox17  Capybara::Selenium::Driver.new(app, :browser => :chrome)18  Capybara::Selenium::Driver.new(app, :browser => :chrome)19  Capybara::Selenium::Driver.new(app, :browser => :chrome)20  Capybara::Selenium::Driver.new(app, :browser => :chrome)

config

Using AI Code Generation

1  Capybara::Selenium::Driver.new(app, :browser => :chrome)2World(Capybara::DSL)3  Capybara::Selenium::Driver.new(app, :browser => :chrome)4World(Capybara::DSL)5  Capybara::Selenium::Driver.new(app, :browser => :chrome)6World(Capybara::DSL)7  Capybara::Selenium::Driver.new(app, :browser => :chrome)8World(Capybara::DSL)

config

Using AI Code Generation

1visit('http://www.google.com')2fill_in('q', with: 'Hello World')3click_button('Google Search')4  Capybara::Selenium::Driver.new(app, browser: :chrome)5visit('http://www.google.com')6fill_in('q', with: 'Hello World')7click_button('Google Search')8  Capybara::Selenium::Driver.new(app, browser: :chrome)9visit('http://www.google.com')10fill_in('q', with: 'Hello World')11click_button('Google Search')12  Capybara::Selenium::Driver.new(app, browser: :chrome)13visit('http://www.google.com')14fill_in('q', with: 'Hello World')15click_button('Google Search')

config

Using AI Code Generation

1        visit('/')2    def search_for(query)3        fill_in('q', :with => query)4        click_button('Google Search')5google.search_for('Capybara')6    Capybara::Selenium::Driver.new(app, :browser => :chrome)7session = Capybara::Session.new(:selenium)8session.visit('https://www.google.com')9session.fill_in('q', :with => 'Capybara')10session.click_button('Google Search')11    Capybara::Selenium::Driver.new(app, :browser => :firefox)12session = Capybara::Session.new(:selenium)13session.visit('https://www.google.com')14session.fill_in('q', :with => 'Capybara')15session.click_button('Google Search')16    Capybara::Selenium::Driver.new(app, :browser => :firefox17  Capybara::Selenium::Driver.new(app, :browser => :chrome)18  Capybara::Selenium::Driver.new(app, :browser => :chrome)19  Capybara::Selenium::Driver.new(app, :browser => :chrome)

config

Using AI Code Generation

1        visit('/')2    def search_for(query)3        fill_in('q', :with => query)4        click_button('Google Search')5google.search_for('Capybara')6    Capybara::Selenium::Driver.new(app, :browser => :chrome)7session = Capybara::Session.new(:selenium)8session.visit('https://www.google.com')9session.fill_in('q', :with => 'Capybara')10session.click_button('Google Search')11    Capybara::Selenium::Driver.new(app, :browser => :firefox)12session = Capybara::Session.new(:selenium)13session.visit('https://www.google.com')14session.fill_in('q', :with => 'Capybara')15session.click_button('Google Search')16    Capybara::Selenium::Driver.new(app, :browser => :firefox

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.