How to use expression method of Capybara Package

Best Capybara code snippet using Capybara.expression

selector.rb

Source:selector.rb

...4  node_filter(:checked, :boolean) { |node, value| !(value ^ node.checked?) }5  node_filter(:unchecked, :boolean) { |node, value| (value ^ node.checked?) }6  node_filter(:disabled, :boolean, default: false, skip_if: :all) { |node, value| !(value ^ node.disabled?) }7  node_filter(:multiple, :boolean) { |node, value| !(value ^ node.multiple?) }8  expression_filter(:name) { |xpath, val| xpath[XPath.attr(:name) == val] }9  expression_filter(:placeholder) { |xpath, val| xpath[XPath.attr(:placeholder) == val] }10  describe(:node_filters) do |checked: nil, unchecked: nil, disabled: nil, multiple: nil, **|11    desc, states = +'', []12    states << 'checked' if checked || (unchecked == false)13    states << 'not checked' if unchecked || (checked == false)14    states << 'disabled' if disabled == true15    states << 'not disabled' if disabled == false16    desc << " that is #{states.join(' and ')}" unless states.empty?17    desc << ' with the multiple attribute' if multiple == true18    desc << ' without the multiple attribute' if multiple == false19    desc20  end21end22# rubocop:disable Metrics/BlockLength23Capybara.add_selector(:xpath) do24  xpath { |xpath| xpath }25end26Capybara.add_selector(:css) do27  css { |css| css }28end29Capybara.add_selector(:id) do30  xpath { |id| XPath.descendant[XPath.attr(:id) == id.to_s] }31end32Capybara.add_selector(:field) do33  xpath do |locator, **options|34    xpath = XPath.descendant(:input, :textarea, :select)[!XPath.attr(:type).one_of('submit', 'image', 'hidden')]35    locate_field(xpath, locator, options)36  end37  expression_filter(:type) do |expr, type|38    type = type.to_s39    if %w[textarea select].include?(type)40      expr.self(type.to_sym)41    else42      expr[XPath.attr(:type) == type]43    end44  end45  filter_set(:_field) # checked/unchecked/disabled/multiple/name/placeholder46  node_filter(:readonly, :boolean) { |node, value| !(value ^ node.readonly?) }47  node_filter(:with) do |node, with|48    with.is_a?(Regexp) ? node.value =~ with : node.value == with.to_s49  end50  describe_expression_filters do |type: nil, **options|51    desc = +''52    (expression_filters.keys - [:type]).each { |ef| desc << " with #{ef} #{options[ef]}" if options.key?(ef) }53    desc << " of type #{type.inspect}" if type54    desc55  end56  describe_node_filters do |**options|57    " with value #{options[:with].to_s.inspect}" if options.key?(:with)58  end59end60Capybara.add_selector(:fieldset) do61  xpath(:legend) do |locator, legend: nil, **|62    locator_matchers = (XPath.attr(:id) == locator.to_s) | XPath.child(:legend)[XPath.string.n.is(locator.to_s)]63    locator_matchers |= XPath.attr(test_id) == locator if test_id64    xpath = XPath.descendant(:fieldset)65    xpath = xpath[locator_matchers] unless locator.nil?66    xpath = xpath[XPath.child(:legend)[XPath.string.n.is(legend)]] if legend67    xpath68  end69  node_filter(:disabled, :boolean) { |node, value| !(value ^ node.disabled?) }70end71Capybara.add_selector(:link) do72  xpath(:title, :alt) do |locator, href: true, alt: nil, title: nil, **|73    xpath = XPath.descendant(:a)74    xpath = xpath[75              case href76              when nil, false77                !XPath.attr(:href)78              when true79                XPath.attr(:href)80              when Regexp81                nil # needs to be handled in filter82              else83                XPath.attr(:href) == href.to_s84              end85            ]86    unless locator.nil?87      locator = locator.to_s88      matchers = [XPath.attr(:id) == locator,89                  XPath.string.n.is(locator),90                  XPath.attr(:title).is(locator),91                  XPath.descendant(:img)[XPath.attr(:alt).is(locator)]]92      matchers << XPath.attr(:'aria-label').is(locator) if enable_aria_label93      matchers << XPath.attr(test_id) == locator if test_id94      xpath = xpath[matchers.reduce(:|)]95    end96    xpath = xpath[find_by_attr(:title, title)]97    xpath = xpath[XPath.descendant(:img)[XPath.attr(:alt) == alt]] if alt98    xpath99  end100  node_filter(:href) do |node, href|101    # If not a Regexp it's been handled in the main XPath102    href.is_a?(Regexp) ? node[:href].match(href) : true103  end104  expression_filter(:download, valid_values: [true, false, String]) do |expr, download|105    mod = case download106    when true then XPath.attr(:download)107    when false then !XPath.attr(:download)108    when String then XPath.attr(:download) == download109    end110    expr[mod]111  end112  describe_expression_filters do |**options|113    desc = +''114    desc << " with href #{options[:href].inspect}" if options[:href] && !options[:href].is_a?(Regexp)115    desc << ' with no href attribute' if options.fetch(:href, true).nil?116    desc117  end118  describe_node_filters do |href: nil, **|119    " with href matching #{href.inspect}" if href.is_a? Regexp120  end121end122Capybara.add_selector(:button) do123  xpath(:value, :title, :type) do |locator, **options|124    input_btn_xpath = XPath.descendant(:input)[XPath.attr(:type).one_of('submit', 'reset', 'image', 'button')]125    btn_xpath = XPath.descendant(:button)126    image_btn_xpath = XPath.descendant(:input)[XPath.attr(:type) == 'image']127    unless locator.nil?128      locator = locator.to_s129      locator_matchers = XPath.attr(:id).equals(locator) | XPath.attr(:value).is(locator) | XPath.attr(:title).is(locator)130      locator_matchers |= XPath.attr(:'aria-label').is(locator) if enable_aria_label131      locator_matchers |= XPath.attr(test_id) == locator if test_id132      input_btn_xpath = input_btn_xpath[locator_matchers]133      btn_xpath = btn_xpath[locator_matchers | XPath.string.n.is(locator) | XPath.descendant(:img)[XPath.attr(:alt).is(locator)]]134      alt_matches = XPath.attr(:alt).is(locator)135      alt_matches |= XPath.attr(:'aria-label').is(locator) if enable_aria_label136      image_btn_xpath = image_btn_xpath[alt_matches]137    end138    res_xpath = input_btn_xpath.union(btn_xpath).union(image_btn_xpath)139    res_xpath = expression_filters.keys.inject(res_xpath) { |memo, ef| memo[find_by_attr(ef, options[ef])] }140    res_xpath141  end142  node_filter(:disabled, :boolean, default: false, skip_if: :all) { |node, value| !(value ^ node.disabled?) }143  describe_expression_filters144  describe_node_filters do |disabled: nil, **|145    ' that is disabled' if disabled == true146  end147end148Capybara.add_selector(:link_or_button) do149  label 'link or button'150  xpath do |locator, **options|151    self.class.all.values_at(:link, :button).map { |selector| selector.xpath.call(locator, options) }.reduce(:union)152  end153  node_filter(:disabled, :boolean, default: false, skip_if: :all) { |node, value| node.tag_name == 'a' || !(value ^ node.disabled?) }154  describe_node_filters do |disabled: nil, **|155    ' that is disabled' if disabled == true156  end157end158Capybara.add_selector(:fillable_field) do159  label 'field'160  xpath do |locator, **options|161    xpath = XPath.descendant(:input, :textarea)[!XPath.attr(:type).one_of('submit', 'image', 'radio', 'checkbox', 'hidden', 'file')]162    locate_field(xpath, locator, options)163  end164  expression_filter(:type) do |expr, type|165    type = type.to_s166    if type == 'textarea'167      expr.self(type.to_sym)168    else169      expr[XPath.attr(:type) == type]170    end171  end172  filter_set(:_field, %i[disabled multiple name placeholder])173  node_filter(:with) do |node, with|174    with.is_a?(Regexp) ? node.value =~ with : node.value == with.to_s175  end176  describe_expression_filters177  describe_node_filters do |**options|178    " with value #{options[:with].to_s.inspect}" if options.key?(:with)179  end180end181Capybara.add_selector(:radio_button) do182  label 'radio button'183  xpath do |locator, **options|184    xpath = XPath.descendant(:input)[XPath.attr(:type) == 'radio']185    locate_field(xpath, locator, options)186  end187  filter_set(:_field, %i[checked unchecked disabled name])188  node_filter(:option) { |node, value| node.value == value.to_s }189  describe_expression_filters190  describe_node_filters do |option: nil, **|191    " with value #{option.inspect}" if option192  end193end194Capybara.add_selector(:checkbox) do195  xpath do |locator, **options|196    xpath = XPath.descendant(:input)[XPath.attr(:type) == 'checkbox']197    locate_field(xpath, locator, options)198  end199  filter_set(:_field, %i[checked unchecked disabled name])200  node_filter(:option) { |node, value| node.value == value.to_s }201  describe_expression_filters202  describe_node_filters do |option: nil, **|203    " with value #{option.inspect}" if option204  end205end206Capybara.add_selector(:select) do207  label 'select box'208  xpath do |locator, **options|209    xpath = XPath.descendant(:select)210    locate_field(xpath, locator, options)211  end212  filter_set(:_field, %i[disabled multiple name placeholder])213  node_filter(:options) do |node, options|214    actual = if node.visible?215      node.all(:xpath, './/option', wait: false).map(&:text)216    else217      node.all(:xpath, './/option', visible: false, wait: false).map { |option| option.text(:all) }218    end219    options.sort == actual.sort220  end221  expression_filter(:with_options) do |expr, options|222    options.inject(expr) do |xpath, option|223      xpath[Capybara::Selector.all[:option].call(option)]224    end225  end226  node_filter(:selected) do |node, selected|227    actual = node.all(:xpath, './/option', visible: false, wait: false).select(&:selected?).map { |option| option.text(:all) }228    Array(selected).sort == actual.sort229  end230  node_filter(:with_selected) do |node, selected|231    actual = node.all(:xpath, './/option', visible: false, wait: false).select(&:selected?).map { |option| option.text(:all) }232    (Array(selected) - actual).empty?233  end234  describe_expression_filters do |with_options: nil, **opts|235    desc = +''236    desc << " with at least options #{with_options.inspect}" if with_options237    desc << describe_all_expression_filters(opts)238    desc239  end240  describe_node_filters do |options: nil, selected: nil, with_selected: nil, **|241    desc = +''242    desc << " with options #{options.inspect}" if options243    desc << " with #{selected.inspect} selected" if selected244    desc << " with at least #{with_selected.inspect} selected" if with_selected245    desc246  end247end248Capybara.add_selector(:datalist_input) do249  label 'input box with datalist completion'250  xpath do |locator, **options|251    xpath = XPath.descendant(:input)[XPath.attr(:list)]252    locate_field(xpath, locator, options)253  end254  filter_set(:_field, %i[disabled name placeholder])255  node_filter(:options) do |node, options|256    actual = node.find("//datalist[@id=#{node[:list]}]", visible: :all).all(:datalist_option, wait: false).map(&:value)257    options.sort == actual.sort258  end259  expression_filter(:with_options) do |expr, options|260    options.inject(expr) do |xpath, option|261      xpath[XPath.attr(:list) == XPath.anywhere(:datalist)[Capybara::Selector.all[:datalist_option].call(option)].attr(:id)]262    end263  end264  describe_expression_filters do |with_options: nil, **opts|265    desc = +''266    desc << " with at least options #{with_options.inspect}" if with_options267    desc << describe_all_expression_filters(opts)268    desc269  end270  describe_node_filters do |options: nil, **|271    " with options #{options.inspect}" if options272  end273end274Capybara.add_selector(:option) do275  xpath do |locator|276    xpath = XPath.descendant(:option)277    xpath = xpath[XPath.string.n.is(locator.to_s)] unless locator.nil?278    xpath279  end280  node_filter(:disabled, :boolean) { |node, value| !(value ^ node.disabled?) }281  node_filter(:selected, :boolean) { |node, value| !(value ^ node.selected?) }282  describe_node_filters do |**options|283    desc = +''284    desc << " that is#{' not' unless options[:disabled]} disabled" if options.key?(:disabled)285    desc << " that is#{' not' unless options[:selected]} selected" if options.key?(:selected)286    desc287  end288end289Capybara.add_selector(:datalist_option) do290  label 'datalist option'291  visible(:all)292  xpath do |locator|293    xpath = XPath.descendant(:option)294    xpath = xpath[XPath.string.n.is(locator.to_s) | (XPath.attr(:value) == locator.to_s)] unless locator.nil?295    xpath296  end297  node_filter(:disabled, :boolean) { |node, value| !(value ^ node.disabled?) }298  describe_node_filters do |**options|299    " that is#{' not' unless options[:disabled]} disabled" if options.key?(:disabled)300  end301end302Capybara.add_selector(:file_field) do303  label 'file field'304  xpath do |locator, options|305    xpath = XPath.descendant(:input)[XPath.attr(:type) == 'file']306    locate_field(xpath, locator, options)307  end308  filter_set(:_field, %i[disabled multiple name])309  describe_expression_filters310end311Capybara.add_selector(:label) do312  label 'label'313  xpath(:for) do |locator, options|314    xpath = XPath.descendant(:label)315    unless locator.nil?316      locator_matchers = XPath.string.n.is(locator.to_s) | (XPath.attr(:id) == locator.to_s)317      locator_matchers |= XPath.attr(test_id) == locator if test_id318      xpath = xpath[locator_matchers]319    end320    if options.key?(:for) && !options[:for].is_a?(Capybara::Node::Element)321      with_attr = XPath.attr(:for) == options[:for].to_s322      labelable_elements = %i[button input keygen meter output progress select textarea]323      wrapped = !XPath.attr(:for) &324                XPath.descendant(*labelable_elements)[XPath.attr(:id) == options[:for].to_s]325      xpath = xpath[with_attr | wrapped]326    end327    xpath328  end329  node_filter(:for) do |node, field_or_value|330    if field_or_value.is_a? Capybara::Node::Element331      if node[:for]332        field_or_value[:id] == node[:for]333      else334        field_or_value.find_xpath('./ancestor::label[1]').include? node.base335      end336    else337      true # Non element values were handled through the expression filter338    end339  end340  describe_expression_filters do |**options|341    " for element with id of \"#{options[:for]}\"" if options.key?(:for) && !options[:for].is_a?(Capybara::Node::Element)342  end343  describe_node_filters do |**options|344    " for element #{options[:for]}" if options[:for]&.is_a?(Capybara::Node::Element)345  end346end347Capybara.add_selector(:table) do348  xpath(:caption) do |locator, caption: nil, **|349    xpath = XPath.descendant(:table)350    unless locator.nil?351      locator_matchers = (XPath.attr(:id) == locator.to_s) | XPath.descendant(:caption).is(locator.to_s)352      locator_matchers |= XPath.attr(test_id) == locator if test_id353      xpath = xpath[locator_matchers]354    end355    xpath = xpath[XPath.descendant(:caption) == caption] if caption356    xpath357  end358  describe_expression_filters do |caption: nil, **|359    " with caption \"#{caption}\"" if caption360  end361end362Capybara.add_selector(:frame) do363  xpath(:name) do |locator, **options|364    xpath = XPath.descendant(:iframe).union(XPath.descendant(:frame))365    unless locator.nil?366      locator_matchers = (XPath.attr(:id) == locator.to_s) | (XPath.attr(:name) == locator.to_s)367      locator_matchers |= XPath.attr(test_id) == locator if test_id368      xpath = xpath[locator_matchers]369    end370    xpath = expression_filters.keys.inject(xpath) { |memo, ef| memo[find_by_attr(ef, options[ef])] }371    xpath372  end373  describe_expression_filters do |name: nil, **|374    " with name #{name}" if name375  end376end377Capybara.add_selector(:element) do378  xpath do |locator, **|379    XPath.descendant((locator || '@').to_sym)380  end381  expression_filter(:attributes, matcher: /.+/) do |xpath, name, val|382    case val383    when Regexp384      xpath385    when XPath::Expression386      xpath[XPath.attr(name)[val]]387    else388      xpath[XPath.attr(name.to_sym) == val]389    end390  end391  node_filter(:attributes, matcher: /.+/) do |node, name, val|392    val.is_a?(Regexp) ? node[name] =~ val : true393  end394  describe_expression_filters395end396# rubocop:enable Metrics/BlockLength...

filter.rb

Source:filter.rb

1# frozen_string_literal: true2require 'capybara/selector/filters/node_filter'3require 'capybara/selector/filters/expression_filter'4module Capybara5  class Selector6    def self.const_missing(const_name)7      case const_name8      when :Filter9        warn "DEPRECATED: Capybara::Selector::Filter is deprecated, please use Capybara::Selector::Filters::NodeFilter instead"10        Filters::NodeFilter11      when :ExpressionFilter12        warn "DEPRECATED: Capybara::Selector::ExpressionFilter is deprecated, please use Capybara::Selector::Filters::ExpressionFilter instead"13        Filters::ExpressionFilter14      else15        super16      end17    end...

expression

Using AI Code Generation

1  def search_for(search_term)2    visit('/')3    fill_in('q', :with => search_term)4    click_button('Google Search')5search.search_for('Capybara')6  def search_for(search_term)7    visit('/')8    fill_in('q', :with => search_term)9    click_button('Google Search')10search.search_for('Capybara')11  def search_for(search_term)12    visit('/')13    fill_in('q', :with => search_term)14    click_button('Google Search')

expression

Using AI Code Generation

1      Capybara.visit('/')2    def search_for(term)3session.search_for('Capybara')4      Capybara.visit('/')5    def search_for(term)6session.search_for('Capybara')

expression

Using AI Code Generation

1visit('http://www.google.com')2visit('http://www.google.com')3visit('http://www.google.com')4visit('http://www.google.com')5visit('http://www.google.com')6visit('http://www.google.com')

expression

Using AI Code Generation

1page.has_selector?(:xpath, '//*[@id="hplogo"]')2page.has_selector?(:xpath, '//*[@id="hplogo1"]')3expect(page).to have_selector(:xpath, '//*[@id="hplogo"]')4expect(page).to have_selector(:xpath, '//*[@id="hplogo1"]')

expression

Using AI Code Generation

1Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click2Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click3Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click4Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click5Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click6Capybara.current_session.find(:xpath, "//a[contains(text(),'Click Me')]").click

expression

Using AI Code Generation

1Capybara::Session.new(:selenium).visit('http://www.google.com')2Capybara::Session.new(:selenium).find(:css, 'input[name="q"]').click3Capybara::Session.new(:selenium).visit('http://www.google.com')4Capybara::Session.new(:selenium).find(:css, 'input[name="q"]').click5Capybara::Session.new(:selenium).visit('http://www.google.com')6Capybara::Session.new(:selenium).find(:css, 'input[name="q"]').click7Capybara::Session.new(:selenium).visit('http://www.google.com')8Capybara::Session.new(:selenium).find(:css, 'input[name="q"]').click9Capybara::Session.new(:selenium).visit('http://www.google.com')10Capybara::Session.new(:selenium).find(:css, 'input[name="q"]').click11  def search_for(search_term)12    visit('/')13    fill_in('q', :with => search_term)14    click_button('Google Search')

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