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Testing Node Element Interactions in teamcapybara/capybara

This test suite validates core functionality of Capybara’s Node element interactions and properties. It covers essential element operations like clicking, dragging, keyboard input, attribute access, and shadow DOM manipulation through comprehensive unit tests.

Test Coverage Overview

The test suite provides extensive coverage of Capybara’s Node element functionality including:

  • Basic element interactions (click, double click, right click)
  • Form element manipulation (text input, checkboxes, radio buttons)
  • Drag and drop operations
  • Keyboard event simulation
  • Element property access and modification
  • Shadow DOM interaction and traversal
  • Element visibility and state checking

Implementation Analysis

The testing approach uses RSpec to systematically verify Node element behavior:

– Implements before hooks to set up test environment
– Uses shared context for common setup
– Leverages JS-enabled tests for interactive features
– Validates both success and error scenarios
– Tests element reloading and synchronization

Technical Details

Key technical components:

  • RSpec test framework
  • Capybara::Node::Base implementation
  • JavaScript execution capability
  • Shadow DOM API integration
  • Event simulation and handling
  • Browser automation integration

Best Practices Demonstrated

The test suite exemplifies testing best practices through:

  • Comprehensive edge case coverage
  • Clear test organization and grouping
  • Proper setup and teardown
  • Consistent assertion patterns
  • Thorough error case validation
  • Cross-browser compatibility testing

teamcapybara/capybara

lib/capybara/spec/session/node_spec.rb

            
# frozen_string_literal: true

# NOTE: This file uses `sleep` to sync up parts of the tests. This is only implemented like this
# because of the methods being tested. In tests using Capybara this type of behavior should be implemented
# using Capybara provided assertions with builtin waiting behavior.

Capybara::SpecHelper.spec 'node' do
  before do
    @session.visit('/with_html')
  end

  it 'should act like a session object' do
    @session.visit('/form')
    @form = @session.find(:css, '#get-form')
    expect(@form).to have_field('Middle Name')
    expect(@form).to have_no_field('Languages')
    @form.fill_in('Middle Name', with: 'Monkey')
    @form.click_button('med')
    expect(extract_results(@session)['middle_name']).to eq('Monkey')
  end

  it 'should scope CSS selectors' do
    expect(@session.find(:css, '#second')).to have_no_css('h1')
  end

  describe '#query_scope' do
    it 'should have a reference to the element the query was evaluated on if there is one' do
      node = @session.find(:css, '#first')
      expect(node.query_scope).to eq(node.session.document)
      expect(node.find(:css, '#foo').query_scope).to eq(node)
    end
  end

  describe '#text' do
    it 'should extract node texts' do
      expect(@session.all('//a')[0].text).to eq('labore')
      expect(@session.all('//a')[1].text).to eq('ullamco')
    end

    it 'should return document text on /html selector' do
      @session.visit('/with_simple_html')
      expect(@session.all('/html')[0].text).to eq('Bar')
    end
  end

  describe '#[]' do
    it 'should extract node attributes' do
      expect(@session.all('//a')[0][:class]).to eq('simple')
      expect(@session.all('//a')[1][:id]).to eq('foo')
      expect(@session.all('//input')[0][:type]).to eq('text')
    end

    it 'should extract boolean node attributes' do
      expect(@session.find('//input[@id="checked_field"]')[:checked]).to be_truthy
    end
  end

  describe '#style', requires: [:css] do
    it 'should return the computed style value' do
      expect(@session.find(:css, '#first').style('display')).to eq('display' => 'block')
      expect(@session.find(:css, '#second').style(:display)).to eq('display' => 'inline')
    end

    it 'should return multiple style values' do
      expect(@session.find(:css, '#first').style('display', :'line-height')).to eq('display' => 'block', 'line-height' => '25px')
    end
  end

  describe '#value' do
    it 'should allow retrieval of the value' do
      expect(@session.find('//textarea[@id="normal"]').value).to eq('banana')
    end

    it 'should not swallow extra newlines in textarea' do
      expect(@session.find('//textarea[@id="additional_newline"]').value).to eq("\nbanana")
    end

    it 'should not swallow leading newlines for set content in textarea' do
      @session.find('//textarea[@id="normal"]').set("\nbanana")
      expect(@session.find('//textarea[@id="normal"]').value).to eq("\nbanana")
    end

    it 'return any HTML content in textarea' do
      @session.find('//textarea[1]').set('some <em>html</em> here')
      expect(@session.find('//textarea[1]').value).to eq('some <em>html</em> here')
    end

    it "defaults to 'on' for checkbox" do
      @session.visit('/form')
      expect(@session.find('//input[@id="valueless_checkbox"]').value).to eq('on')
    end

    it "defaults to 'on' for radio buttons" do
      @session.visit('/form')
      expect(@session.find('//input[@id="valueless_radio"]').value).to eq('on')
    end
  end

  describe '#set' do
    it 'should allow assignment of field value' do
      expect(@session.first('//input').value).to eq('monkey')
      @session.first('//input').set('gorilla')
      expect(@session.first('//input').value).to eq('gorilla')
    end

    it 'should fill the field even if the caret was not at the end', requires: [:js] do
      @session.execute_script("var el = document.getElementById('test_field'); el.focus(); el.setSelectionRange(0, 0);")
      @session.first('//input').set('')
      expect(@session.first('//input').value).to eq('')
    end

    if ENV['CAPYBARA_THOROUGH']
      it 'should raise if the text field is readonly' do
        expect { @session.first('//input[@readonly]').set('changed') }.to raise_error(Capybara::ReadOnlyElementError)
      end

      it 'should raise if the textarea is readonly' do
        expect { @session.first('//textarea[@readonly]').set('changed') }.to raise_error(Capybara::ReadOnlyElementError)
      end
    else
      it 'should not change if the text field is readonly' do
        @session.first('//input[@readonly]').set('changed')
        expect(@session.first('//input[@readonly]').value).to eq 'should not change'
      end

      it 'should not change if the textarea is readonly' do
        @session.first('//textarea[@readonly]').set('changed')
        expect(@session.first('//textarea[@readonly]').value).to eq 'textarea should not change'
      end
    end

    it 'should use global default options' do
      Capybara.default_set_options = { clear: :backspace }
      element = @session.first(:fillable_field, type: 'text')
      allow(element.base).to receive(:set)
      element.set('gorilla')
      expect(element.base).to have_received(:set).with('gorilla', clear: :backspace)
    end

    context 'with a contenteditable element', requires: [:js] do
      it 'should allow me to change the contents' do
        @session.visit('/with_js')
        @session.find(:css, '#existing_content_editable').set('WYSIWYG')
        expect(@session.find(:css, '#existing_content_editable').text).to eq('WYSIWYG')
      end

      it 'should allow me to set the contents' do
        @session.visit('/with_js')
        @session.find(:css, '#blank_content_editable').set('WYSIWYG')
        expect(@session.find(:css, '#blank_content_editable').text).to eq('WYSIWYG')
      end

      it 'should allow me to change the contents of a child element' do
        @session.visit('/with_js')
        @session.find(:css, '#existing_content_editable_child').set('WYSIWYG')
        expect(@session.find(:css, '#existing_content_editable_child').text).to eq('WYSIWYG')
        expect(@session.find(:css, '#existing_content_editable_child_parent').text).to eq("Some content\nWYSIWYG")
      end
    end

    it 'should submit single text input forms if ended with \n' do
      @session.visit('/form')
      @session.find(:css, '#single_input').set("my entry\n")
      expect(extract_results(@session)['single_input']).to eq('my entry')
    end

    it 'should not submit single text input forms if ended with \n and has multiple values' do
      @session.visit('/form')
      @session.find(:css, '#two_input_1').set("my entry\n")
      expect(@session.find(:css, '#two_input_1').value).to eq("my entry\n").or(eq 'my entry')
    end
  end

  describe '#tag_name' do
    it 'should extract node tag name' do
      expect(@session.all('//a')[0].tag_name).to eq('a')
      expect(@session.all('//a')[1].tag_name).to eq('a')
      expect(@session.all('//p')[1].tag_name).to eq('p')
    end
  end

  describe '#disabled?' do
    it 'should extract disabled node' do
      @session.visit('/form')
      expect(@session.find('//input[@id="customer_name"]')).to be_disabled
      expect(@session.find('//input[@id="customer_email"]')).not_to be_disabled
    end

    it 'should see disabled options as disabled' do
      @session.visit('/form')
      expect(@session.find('//select[@id="form_title"]/option[1]')).not_to be_disabled
      expect(@session.find('//select[@id="form_title"]/option[@disabled]')).to be_disabled
    end

    it 'should see enabled options in disabled select as disabled' do
      @session.visit('/form')
      expect(@session.find('//select[@id="form_disabled_select"]/option')).to be_disabled
      expect(@session.find('//select[@id="form_disabled_select"]/optgroup/option')).to be_disabled
      expect(@session.find('//select[@id="form_title"]/option[1]')).not_to be_disabled
    end

    it 'should see enabled options in disabled optgroup as disabled' do
      @session.visit('/form')
      expect(@session.find('//option', text: 'A.B.1')).to be_disabled
      expect(@session.find('//option', text: 'A.2')).not_to be_disabled
    end

    it 'should see a disabled fieldset as disabled' do
      @session.visit('/form')
      expect(@session.find(:xpath, './/fieldset[@id="form_disabled_fieldset"]')).to be_disabled
    end

    context 'in a disabled fieldset' do
      # https://html.spec.whatwg.org/#the-fieldset-element
      it 'should see elements not in first legend as disabled' do
        @session.visit('/form')
        expect(@session.find('//input[@id="form_disabled_fieldset_child"]')).to be_disabled
        expect(@session.find('//input[@id="form_disabled_fieldset_second_legend_child"]')).to be_disabled
        expect(@session.find('//input[@id="form_enabled_fieldset_child"]')).not_to be_disabled
      end

      it 'should see elements in first legend as enabled' do
        @session.visit('/form')
        expect(@session.find('//input[@id="form_disabled_fieldset_legend_child"]')).not_to be_disabled
      end

      it 'should sees options not in first legend as disabled' do
        @session.visit('/form')
        expect(@session.find('//option', text: 'Disabled Child Option')).to be_disabled
      end
    end

    it 'should be boolean' do
      @session.visit('/form')
      expect(@session.find('//select[@id="form_disabled_select"]/option').disabled?).to be true
      expect(@session.find('//select[@id="form_disabled_select2"]/option').disabled?).to be true
      expect(@session.find('//select[@id="form_title"]/option[1]').disabled?).to be false
    end

    it 'should be disabled for all elements that are CSS :disabled' do
      @session.visit('/form')
      # sanity check
      expect(@session.all(:css, ':disabled')).to all(be_disabled)
    end
  end

  describe '#visible?' do
    before { Capybara.ignore_hidden_elements = false }

    it 'should extract node visibility' do
      expect(@session.first('//a')).to be_visible

      expect(@session.find('//div[@id="hidden"]')).not_to be_visible
      expect(@session.find('//div[@id="hidden_via_ancestor"]')).not_to be_visible
      expect(@session.find('//div[@id="hidden_attr"]')).not_to be_visible
      expect(@session.find('//a[@id="hidden_attr_via_ancestor"]')).not_to be_visible
      expect(@session.find('//input[@id="hidden_input"]')).not_to be_visible
    end

    it 'template elements should not be visible' do
      expect(@session.find('//template')).not_to be_visible
    end

    it 'should be boolean' do
      expect(@session.first('//a').visible?).to be true
      expect(@session.find('//div[@id="hidden"]').visible?).to be false
    end

    it 'closed details > summary elements and descendants should be visible' do
      expect(@session.find(:css, '#closed_details summary')).to be_visible
      expect(@session.find(:css, '#closed_details summary h6')).to be_visible
    end

    it 'details non-summary descendants should be non-visible when closed' do
      descendants = @session.all(:css, '#closed_details > *:not(summary), #closed_details > *:not(summary) *', minimum: 2)
      expect(descendants).not_to include(be_visible)
    end

    it 'deatils descendants should be visible when open' do
      descendants = @session.all(:css, '#open_details *')
      expect(descendants).to all(be_visible)
    end

    it 'works when details is toggled open and closed' do
      @session.find(:css, '#closed_details > summary').click
      expect(@session).to have_css('#closed_details *', visible: :visible, count: 5)
        .and(have_no_css('#closed_details *', visible: :hidden))

      @session.find(:css, '#closed_details > summary').click
      descendants_css = '#closed_details > *:not(summary), #closed_details > *:not(summary) *'
      expect(@session).to have_no_css(descendants_css, visible: :visible)
        .and(have_css(descendants_css, visible: :hidden, count: 3))
      sleep 20
    end

    it 'works with popover attribute' do
      expect(@session.find(:button, 'Should not be clickable')).not_to be_visible
      expect(@session.find(:button, 'Should be clickable')).not_to be_visible
      @session.click_button('Show popover')
      expect(@session.find(:button, 'Should be clickable')).to be_visible
      expect(@session.find(:button, 'Should not be clickable')).not_to be_visible
    end

    it 'works with popover parents' do
      expect(@session.find(:id, 'popover_parent')).not_to be_visible
      expect(@session.find(:id, 'popover_child')).not_to be_visible
      @session.click_button('Show parent popover')
      expect(@session.find(:id, 'popover_child', text: 'Popover Contents')).to be_visible
    end
  end

  describe '#obscured?', requires: [:css] do
    it 'should see non visible elements as obscured' do
      Capybara.ignore_hidden_elements = false
      expect(@session.find('//div[@id="hidden"]')).to be_obscured
      expect(@session.find('//div[@id="hidden_via_ancestor"]')).to be_obscured
      expect(@session.find('//div[@id="hidden_attr"]')).to be_obscured
      expect(@session.find('//a[@id="hidden_attr_via_ancestor"]')).to be_obscured
      expect(@session.find('//input[@id="hidden_input"]')).to be_obscured
    end

    it 'should see non-overlapped elements as not obscured' do
      @session.visit('/obscured')
      expect(@session.find(:css, '#cover')).not_to be_obscured
    end

    it 'should see elements only overlapped by descendants as not obscured' do
      skip 'Fails on CI, unsure why. Needs investigation.' if ENV['CI']
      expect(@session.first(:css, 'p:not(.para)')).not_to be_obscured
    end

    it 'should see elements outside the viewport as obscured' do
      @session.visit('/obscured')
      off = @session.find(:css, '#offscreen')
      off_wrapper = @session.find(:css, '#offscreen_wrapper')
      expect(off).to be_obscured
      expect(off_wrapper).to be_obscured
      @session.scroll_to(off_wrapper)
      expect(off_wrapper).not_to be_obscured
      expect(off).to be_obscured
      off_wrapper.scroll_to(off)
      expect(off).not_to be_obscured
      expect(off_wrapper).not_to be_obscured
    end

    it 'should see overlapped elements as obscured' do
      @session.visit('/obscured')
      expect(@session.find(:css, '#obscured')).to be_obscured
    end

    it 'should be boolean' do
      Capybara.ignore_hidden_elements = false
      expect(@session.first('//a').obscured?).to be false
      expect(@session.find('//div[@id="hidden"]').obscured?).to be true
    end

    it 'should work in frames' do
      @session.visit('/obscured')
      frame = @session.find(:css, '#frameOne')
      @session.within_frame(frame) do
        div = @session.find(:css, '#divInFrameOne')
        expect(div).to be_obscured
        @session.scroll_to div
        expect(div).not_to be_obscured
      end
    end

    it 'should work in nested iframes' do
      @session.visit('/obscured')
      frame = @session.find(:css, '#nestedFrames')
      @session.within_frame(frame) do
        @session.within_frame(:css, '#childFrame') do
          gcframe = @session.find(:css, '#grandchildFrame2')
          @session.within_frame(gcframe) do
            expect(@session.find(:css, '#divInFrameTwo')).to be_obscured
          end
          @session.scroll_to(gcframe)
          @session.within_frame(gcframe) do
            expect(@session.find(:css, '#divInFrameTwo')).not_to be_obscured
          end
        end
      end
    end
  end

  describe '#checked?' do
    it 'should extract node checked state' do
      @session.visit('/form')
      expect(@session.find('//input[@id="gender_female"]')).to be_checked
      expect(@session.find('//input[@id="gender_male"]')).not_to be_checked
      expect(@session.first('//h1')).not_to be_checked
    end

    it 'should be boolean' do
      @session.visit('/form')
      expect(@session.find('//input[@id="gender_female"]').checked?).to be true
      expect(@session.find('//input[@id="gender_male"]').checked?).to be false
      expect(@session.find('//input[@id="no_attr_value_checked"]').checked?).to be true
    end
  end

  describe '#selected?' do
    it 'should extract node selected state' do
      @session.visit('/form')
      expect(@session.find('//option[@value="en"]')).to be_selected
      expect(@session.find('//option[@value="sv"]')).not_to be_selected
      expect(@session.first('//h1')).not_to be_selected
    end

    it 'should be boolean' do
      @session.visit('/form')
      expect(@session.find('//option[@value="en"]').selected?).to be true
      expect(@session.find('//option[@value="sv"]').selected?).to be false
      expect(@session.first('//h1').selected?).to be false
    end
  end

  describe '#==' do
    it 'preserve object identity' do
      expect(@session.find('//h1') == @session.find('//h1')).to be true # rubocop:disable Lint/BinaryOperatorWithIdenticalOperands
      expect(@session.find('//h1') === @session.find('//h1')).to be true # rubocop:disable Style/CaseEquality, Lint/BinaryOperatorWithIdenticalOperands
      expect(@session.find('//h1').eql?(@session.find('//h1'))).to be false
    end

    it 'returns false for unrelated object' do
      expect(@session.find('//h1') == 'Not Capybara::Node::Base').to be false
    end
  end

  describe '#path' do
    # Testing for specific XPaths here doesn't make sense since there
    # are many that can refer to the same element
    before do
      @session.visit('/path')
    end

    it 'returns xpath which points to itself' do
      element = @session.find(:link, 'Second Link')
      expect(@session.find(:xpath, element.path)).to eq(element)
    end

    it 'reports when element in shadow dom', requires: [:shadow_dom] do
      @session.visit('/with_js')
      shadow = @session.find(:css, '#shadow')
      element = @session.evaluate_script(<<~JS, shadow)
        (function(root){
          return root.shadowRoot.querySelector('span');
        })(arguments[0])
      JS
      expect(element.path).to eq '(: Shadow DOM element - no XPath :)'
    end
  end

  describe '#trigger', requires: %i[js trigger] do
    it 'should allow triggering of custom JS events' do
      @session.visit('/with_js')
      @session.find(:css, '#with_focus_event').trigger(:focus)
      expect(@session).to have_css('#focus_event_triggered')
    end
  end

  describe '#drag_to', requires: %i[js drag] do
    it 'should drag and drop an object' do
      @session.visit('/with_js')
      element = @session.find('//div[@id="drag"]')
      target = @session.find('//div[@id="drop"]')
      element.drag_to(target)
      expect(@session).to have_xpath('//div[contains(., "Dropped!")]')
    end

    it 'should drag and drop if scrolling is needed' do
      @session.visit('/with_js')
      element = @session.find('//div[@id="drag_scroll"]')
      target = @session.find('//div[@id="drop_scroll"]')
      element.drag_to(target)
      expect(@session).to have_xpath('//div[contains(., "Dropped!")]')
    end

    it 'should drag a link' do
      @session.visit('/with_js')
      link = @session.find_link('drag_link')
      target = @session.find(:id, 'drop')
      link.drag_to target
      expect(@session).to have_xpath('//div[contains(., "Dropped!")]')
    end

    it 'should work with Dragula' do
      @session.visit('/with_dragula')
      @session.within(:css, '#sortable.ready') do
        src = @session.find('div', text: 'Item 1')
        target = @session.find('div', text: 'Item 3')
        src.drag_to target
        expect(@session).to have_content(/Item 2.*Item 1/, normalize_ws: true)
      end
    end

    it 'should work with jsTree' do
      @session.visit('/with_jstree')
      @session.within(:css, '#container') do
        @session.assert_text(/A.*B.*C/m)
        source = @session.find(:css, '#j1_1_anchor')
        target = @session.find(:css, '#j1_2_anchor')

        source.drag_to(target)

        @session.assert_no_text(/A.*B.*C/m)
        @session.assert_text(/B.*C/m)
      end
    end

    it 'should simulate a single held down modifier key' do
      %I[
        alt
        ctrl
        meta
        shift
      ].each do |modifier_key|
        @session.visit('/with_js')

        element = @session.find('//div[@id="drag"]')
        target = @session.find('//div[@id="drop"]')

        element.drag_to(target, drop_modifiers: modifier_key)
        expect(@session).to have_css('div.drag_start', exact_text: 'Dragged!')
        expect(@session).to have_xpath("//div[contains(., 'Dropped!-#{modifier_key}')]")
      end
    end

    it 'should simulate multiple held down modifier keys' do
      @session.visit('/with_js')

      element = @session.find('//div[@id="drag"]')
      target = @session.find('//div[@id="drop"]')

      modifier_keys = %I[alt ctrl meta shift]

      element.drag_to(target, drop_modifiers: modifier_keys)
      expect(@session).to have_xpath("//div[contains(., 'Dropped!-#{modifier_keys.join('-')}')]")
    end

    it 'should support key aliases' do
      { control: :ctrl,
        command: :meta,
        cmd: :meta }.each do |(key_alias, key)|
        @session.visit('/with_js')

        element = @session.find('//div[@id="drag"]')
        target = @session.find('//div[@id="drop"]')

        element.drag_to(target, drop_modifiers: [key_alias])
        expect(target).to have_text("Dropped!-#{key}", exact: true)
      end
    end

    context 'HTML5', requires: %i[js html5_drag] do
      it 'should HTML5 drag and drop an object' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')
        element.drag_to(target)
        expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/plain drag_html5")]')
      end

      it 'should HTML5 drag and drop an object child' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]/p')
        target = @session.find('//div[@id="drop_html5"]')
        element.drag_to(target)
        expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/plain drag_html5")]')
      end

      it 'should set clientX/Y in dragover events' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')
        element.drag_to(target)
        expect(@session).to have_css('div.log', text: /DragOver with client position: [1-9]\d*,[1-9]\d*/, count: 2)
      end

      it 'should preserve clientX/Y from last dragover event' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')
        element.drag_to(target)

        conditions = %w[DragLeave Drop DragEnd].map do |text|
          have_css('div.log', text: text)
        end
        expect(@session).to(conditions.reduce { |memo, cond| memo.and(cond) })

        # The first "DragOver" div is inserted by the last dragover event dispatched
        drag_over_div = @session.first('//div[@class="log" and starts-with(text(), "DragOver")]')
        position = drag_over_div.text.sub('DragOver ', '')

        expect(@session).to have_css('div.log', text: /DragLeave #{position}/, count: 1)
        expect(@session).to have_css('div.log', text: /Drop #{position}/, count: 1)
        expect(@session).to have_css('div.log', text: /DragEnd #{position}/, count: 1)
      end

      it 'should not HTML5 drag and drop on a non HTML5 drop element' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')
        target.execute_script("$(this).removeClass('drop');")
        element.drag_to(target)
        sleep 1
        expect(@session).not_to have_xpath('//div[contains(., "HTML5 Dropped")]')
      end

      it 'should HTML5 drag and drop when scrolling needed' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5_scroll"]')
        target = @session.find('//div[@id="drop_html5_scroll"]')
        element.drag_to(target)
        expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/plain drag_html5_scroll")]')
      end

      it 'should drag HTML5 default draggable elements' do
        @session.visit('/with_js')
        link = @session.find_link('drag_link_html5')
        target = @session.find(:id, 'drop_html5')
        link.drag_to target
        expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped")]')
      end

      it 'should work with SortableJS' do
        @session.visit('/with_sortable_js')
        @session.within(:css, '#sortable') do
          src = @session.find('div', text: 'Item 1')
          target = @session.find('div', text: 'Item 3')
          src.drag_to target
          expect(@session).to have_content(/Item 3.*Item 1/, normalize_ws: true)
        end
      end

      it 'should drag HTML5 default draggable element child' do
        @session.visit('/with_js')
        source = @session.find_link('drag_link_html5').find(:css, 'p')
        target = @session.find(:id, 'drop_html5')
        source.drag_to target
        expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped")]')
      end

      it 'should simulate a single held down modifier key' do
        %I[alt ctrl meta shift].each do |modifier_key|
          @session.visit('/with_js')

          element = @session.find('//div[@id="drag_html5"]')
          target = @session.find('//div[@id="drop_html5"]')

          element.drag_to(target, drop_modifiers: modifier_key)

          expect(@session).to have_css('div.drag_start', exact_text: 'HTML5 Dragged!')
          expect(@session).to have_xpath("//div[contains(., 'HTML5 Dropped string: text/plain drag_html5-#{modifier_key}')]")
        end
      end

      it 'should simulate multiple held down modifier keys' do
        @session.visit('/with_js')

        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')

        modifier_keys = %I[alt ctrl meta shift]

        element.drag_to(target, drop_modifiers: modifier_keys)
        expect(@session).to have_xpath("//div[contains(., 'HTML5 Dropped string: text/plain drag_html5-#{modifier_keys.join('-')}')]")
      end

      it 'should support key aliases' do
        { control: :ctrl,
          command: :meta,
          cmd: :meta }.each do |(key_alias, key)|
          @session.visit('/with_js')

          element = @session.find('//div[@id="drag_html5"]')
          target = @session.find('//div[@id="drop_html5"]')

          element.drag_to(target, drop_modifiers: [key_alias])
          expect(target).to have_text(%r{^HTML5 Dropped string: text/plain drag_html5-#{key}$}m, exact: true)
        end
      end

      it 'should trigger a dragenter event, before the first dragover event' do
        @session.visit('/with_js')
        element = @session.find('//div[@id="drag_html5"]')
        target = @session.find('//div[@id="drop_html5"]')
        element.drag_to(target)

        # Events are listed in reverse chronological order
        expect(@session).to have_text(/DragOver.*DragEnter/m)
      end
    end
  end

  describe 'Element#drop', requires: %i[js html5_drag] do
    it 'can drop a file' do
      @session.visit('/with_js')
      target = @session.find('//div[@id="drop_html5"]')
      target.drop(
        with_os_path_separators(File.expand_path('../fixtures/capybara.jpg', File.dirname(__FILE__)))
      )
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped file: capybara.jpg")]')
    end

    it 'can drop multiple files' do
      @session.visit('/with_js')
      target = @session.find('//div[@id="drop_html5"]')
      target.drop(
        with_os_path_separators(File.expand_path('../fixtures/capybara.jpg', File.dirname(__FILE__))),
        with_os_path_separators(File.expand_path('../fixtures/test_file.txt', File.dirname(__FILE__)))
      )
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped file: capybara.jpg")]')
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped file: test_file.txt")]')
    end

    it 'can drop strings' do
      @session.visit('/with_js')
      target = @session.find('//div[@id="drop_html5"]')
      target.drop('text/plain' => 'Some dropped text')
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/plain Some dropped text")]')
    end

    it 'can drop a pathname' do
      @session.visit('/with_js')
      target = @session.find('//div[@id="drop_html5"]')
      target.drop(
        Pathname.new(with_os_path_separators(File.expand_path('../fixtures/capybara.jpg', File.dirname(__FILE__))))
      )
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped file: capybara.jpg")]')
    end

    it 'can drop multiple strings' do
      @session.visit('/with_js')
      target = @session.find('//div[@id="drop_html5"]')
      target.drop('text/plain' => 'Some dropped text', 'text/url' => 'http://www.google.com')
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/plain Some dropped text")]')
      expect(@session).to have_xpath('//div[contains(., "HTML5 Dropped string: text/url http://www.google.com")]')
    end
  end

  describe '#hover', requires: [:hover] do
    it 'should allow hovering on an element' do
      @session.visit('/with_hover')
      expect(@session.find(:css, '.wrapper:not(.scroll_needed) .hidden_until_hover', visible: false)).not_to be_visible
      @session.find(:css, '.wrapper:not(.scroll_needed)').hover
      expect(@session.find(:css, '.wrapper:not(.scroll_needed) .hidden_until_hover', visible: false)).to be_visible
    end

    it 'should allow hovering on an element that needs to be scrolled into view' do
      @session.visit('/with_hover')
      expect(@session.find(:css, '.wrapper.scroll_needed .hidden_until_hover', visible: false)).not_to be_visible
      @session.find(:css, '.wrapper.scroll_needed').hover
      expect(@session.find(:css, '.wrapper.scroll_needed .hidden_until_hover', visible: false)).to be_visible
    end

    it 'should hover again after following a link and back' do
      @session.visit('/with_hover')
      @session.find(:css, '.wrapper:not(.scroll_needed)').hover
      @session.click_link('Other hover page')
      @session.click_link('Go back')
      @session.find(:css, '.wrapper:not(.scroll_needed)').hover
      expect(@session.find(:css, '.wrapper:not(.scroll_needed) .hidden_until_hover', visible: false)).to be_visible
    end
  end

  describe '#click' do
    it 'should not follow a link if no href' do
      @session.find(:css, '#link_placeholder').click
      expect(@session.current_url).to match(%r{/with_html$})
    end

    it 'should go to the same page if href is blank' do
      @session.find(:css, '#link_blank_href').click
      sleep 1
      expect(@session).to have_current_path('/with_html')
    end

    it 'should be able to check a checkbox' do
      @session.visit('form')
      cbox = @session.find(:checkbox, 'form_terms_of_use')
      expect(cbox).not_to be_checked
      cbox.click
      expect(cbox).to be_checked
    end

    it 'should be able to uncheck a checkbox' do
      @session.visit('/form')
      cbox = @session.find(:checkbox, 'form_pets_dog')
      expect(cbox).to be_checked
      cbox.click
      expect(cbox).not_to be_checked
    end

    it 'should be able to select a radio button' do
      @session.visit('/form')
      radio = @session.find(:radio_button, 'gender_male')
      expect(radio).not_to be_checked
      radio.click
      expect(radio).to be_checked
    end

    it 'should allow modifiers', requires: [:js] do
      @session.visit('/with_js')
      @session.find(:css, '#click-test').click(:shift)
      expect(@session).to have_link('Has been shift clicked')
    end

    it 'should allow multiple modifiers', requires: [:js] do
      @session.visit('with_js')
      @session.find(:css, '#click-test').click(:control, :alt, :meta, :shift)
      # Selenium with Chrome on OSX ctrl-click generates a right click so just verify all keys but not click type
      expect(@session).to have_link('alt control meta shift')
    end

    it 'should allow to adjust the click offset', requires: [:js] do
      Capybara.w3c_click_offset = false
      @session.visit('with_js')
      @session.find(:css, '#click-test').click(x: 5, y: 5)
      link = @session.find(:link, 'has-been-clicked')
      locations = link.text.match(/^Has been clicked at (?<x>[\d.-]+),(?<y>[\d.-]+)$/)
      # Resulting click location should be very close to 0, 0 relative to top left corner of the element, but may not be exact due to
      # integer/float conversions and rounding.
      expect(locations[:x].to_f).to be_within(1).of(5)
      expect(locations[:y].to_f).to be_within(1).of(5)
    end

    it 'should raise error if both x and y values are not passed' do
      @session.visit('with_js')
      el = @session.find(:css, '#click-test')
      expect { el.click(x: 5) }.to raise_error ArgumentError
      expect { el.click(x: nil, y: 3) }.to raise_error ArgumentError
    end

    it 'should be able to click a table row', requires: [:js] do
      @session.visit('/tables')
      tr = @session.find(:css, '#agent_table tr:first-child').click
      expect(tr).to have_css('label', text: 'Clicked')
    end

    it 'should retry clicking', requires: [:js] do
      @session.visit('/animated')
      obscured = @session.find(:css, '#obscured')
      @session.execute_script <<~JS
        setTimeout(function(){ $('#cover').hide(); }, 700)
      JS
      expect { obscured.click }.not_to raise_error
    end

    it 'should allow to retry longer', requires: [:js] do
      @session.visit('/animated')
      obscured = @session.find(:css, '#obscured')
      @session.execute_script <<~JS
        setTimeout(function(){ $('#cover').hide(); }, 3000)
      JS
      expect { obscured.click(wait: 4) }.not_to raise_error
    end

    it 'should not retry clicking when wait is disabled', requires: [:js] do
      @session.visit('/animated')
      obscured = @session.find(:css, '#obscured')
      @session.execute_script <<~JS
        setTimeout(function(){ $('#cover').hide(); }, 2000)
      JS
      expect { obscured.click(wait: 0) }.to(raise_error { |e| expect(e).to be_an_invalid_element_error(@session) })
    end

    context 'offset', requires: [:js] do
      before do
        @session.visit('/offset')
      end

      let :clicker do
        @session.find(:id, 'clicker')
      end

      context 'when w3c_click_offset is false' do
        before do
          Capybara.w3c_click_offset = false
        end

        it 'should offset from top left of element' do
          clicker.click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 110,105/)
        end

        it 'should offset outside the element' do
          clicker.click(x: -15, y: -10)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end

      context 'when w3c_click_offset is true' do
        before do
          Capybara.w3c_click_offset = true
        end

        it 'should offset from center of element' do
          clicker.click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 160,155/)
        end

        it 'should offset outside from center of element' do
          clicker.click(x: -65, y: -60)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end
    end

    context 'delay', requires: [:js] do
      it 'should delay the mouse up' do
        @session.visit('with_js')
        @session.find(:css, '#click-test').click(delay: 2)
        delay = @session.evaluate_script('window.click_delay')
        expect(delay).to be >= 2
      end
    end
  end

  describe '#double_click', requires: [:js] do
    it 'should double click an element' do
      @session.visit('/with_js')
      @session.find(:css, '#click-test').double_click
      expect(@session.find(:css, '#has-been-double-clicked')).to be_truthy
    end

    it 'should allow modifiers', requires: [:js] do
      @session.visit('/with_js')
      @session.find(:css, '#click-test').double_click(:alt)
      expect(@session).to have_link('Has been alt double clicked')
    end

    it 'should allow to adjust the offset', requires: [:js] do
      Capybara.w3c_click_offset = false
      @session.visit('with_js')
      @session.find(:css, '#click-test').double_click(x: 10, y: 5)
      link = @session.find(:link, 'has-been-double-clicked')
      locations = link.text.match(/^Has been double clicked at (?<x>[\d.-]+),(?<y>[\d.-]+)$/)
      # Resulting click location should be very close to 10, 5 relative to top left corner of the element, but may not be exact due
      # to integer/float conversions and rounding.
      expect(locations[:x].to_f).to be_within(1).of(10)
      expect(locations[:y].to_f).to be_within(1).of(5)
    end

    it 'should retry clicking', requires: [:js] do
      @session.visit('/animated')
      obscured = @session.find(:css, '#obscured')
      @session.execute_script <<~JS
        setTimeout(function(){ $('#cover').hide(); }, 700)
      JS
      expect { obscured.double_click }.not_to raise_error
    end

    context 'offset', requires: [:js] do
      before do
        @session.visit('/offset')
      end

      let :clicker do
        @session.find(:id, 'clicker')
      end

      context 'when w3c_click_offset is false' do
        before do
          Capybara.w3c_click_offset = false
        end

        it 'should offset from top left of element' do
          clicker.double_click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 110,105/)
        end

        it 'should offset outside the element' do
          clicker.double_click(x: -15, y: -10)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.double_click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end

      context 'when w3c_click_offset is true' do
        before do
          Capybara.w3c_click_offset = true
        end

        it 'should offset from center of element' do
          clicker.double_click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 160,155/)
        end

        it 'should offset outside from center of element' do
          clicker.double_click(x: -65, y: -60)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.double_click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end
    end
  end

  describe '#right_click', requires: [:js] do
    it 'should right click an element' do
      @session.visit('/with_js')
      @session.find(:css, '#click-test').right_click
      expect(@session.find(:css, '#has-been-right-clicked')).to be_truthy
    end

    it 'should allow modifiers', requires: [:js] do
      @session.visit('/with_js')
      @session.find(:css, '#click-test').right_click(:meta)
      expect(@session).to have_link('Has been meta right clicked')
    end

    it 'should allow to adjust the offset', requires: [:js] do
      Capybara.w3c_click_offset = false
      @session.visit('with_js')
      @session.find(:css, '#click-test').right_click(x: 10, y: 10)
      link = @session.find(:link, 'has-been-right-clicked')
      locations = link.text.match(/^Has been right clicked at (?<x>[\d.-]+),(?<y>[\d.-]+)$/)
      # Resulting click location should be very close to 10, 10 relative to top left corner of the element, but may not be exact due
      # to integer/float conversions and rounding
      expect(locations[:x].to_f).to be_within(1).of(10)
      expect(locations[:y].to_f).to be_within(1).of(10)
    end

    it 'should retry clicking', requires: [:js] do
      @session.visit('/animated')
      obscured = @session.find(:css, '#obscured')
      @session.execute_script <<~JS
        setTimeout(function(){ $('#cover').hide(); }, 700)
      JS
      expect { obscured.right_click }.not_to raise_error
    end

    context 'offset', requires: [:js] do
      before do
        @session.visit('/offset')
      end

      let :clicker do
        @session.find(:id, 'clicker')
      end

      context 'when w3c_click_offset is false' do
        before do
          Capybara.w3c_click_offset = false
        end

        it 'should offset from top left of element' do
          clicker.right_click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 110,105/)
        end

        it 'should offset outside the element' do
          clicker.right_click(x: -15, y: -10)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.right_click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end

      context 'when w3c_click_offset is true' do
        before do
          Capybara.w3c_click_offset = true
        end

        it 'should offset from center of element' do
          clicker.right_click(x: 10, y: 5)
          expect(@session).to have_text(/clicked at 160,155/)
        end

        it 'should offset outside from center of element' do
          clicker.right_click(x: -65, y: -60)
          expect(@session).to have_text(/clicked at 85,90/)
        end

        it 'should default to click the middle' do
          clicker.right_click
          expect(@session).to have_text(/clicked at 150,150/)
        end
      end
    end

    context 'delay', requires: [:js] do
      it 'should delay the mouse up' do
        @session.visit('with_js')
        @session.find(:css, '#click-test').right_click(delay: 2)
        delay = @session.evaluate_script('window.right_click_delay')
        expect(delay).to be >= 2
      end
    end
  end

  describe '#send_keys', requires: [:send_keys] do
    it 'should send a string of keys to an element' do
      @session.visit('/form')
      @session.find(:css, '#address1_city').send_keys('Oceanside')
      expect(@session.find(:css, '#address1_city').value).to eq 'Oceanside'
    end

    it 'should send special characters' do
      @session.visit('/form')
      @session.find(:css, '#address1_city').send_keys('Ocean', :space, 'sie', :left, 'd')
      expect(@session.find(:css, '#address1_city').value).to eq 'Ocean side'
    end

    it 'should allow for multiple simultaneous keys' do
      @session.visit('/form')
      @session.find(:css, '#address1_city').send_keys([:shift, 'o'], 'ceanside')
      expect(@session.find(:css, '#address1_city').value).to eq 'Oceanside'
    end

    it 'should hold modifiers at top level' do
      @session.visit('/form')
      @session.find(:css, '#address1_city').send_keys('ocean', :shift, 'side')
      expect(@session.find(:css, '#address1_city').value).to eq 'oceanSIDE'
    end

    it 'should generate key events', requires: %i[send_keys js] do
      @session.visit('/with_js')
      @session.find(:css, '#with-key-events').send_keys([:shift, 't'], [:shift, 'w'])
      expect(@session.find(:css, '#key-events-output')).to have_text('keydown:16 keydown:84 keydown:16 keydown:87')
    end
  end

  describe '#execute_script', requires: %i[js es_args] do
    it 'should execute the given script in the context of the element and return nothing' do
      @session.visit('/with_js')
      expect(@session.find(:css, '#change').execute_script("this.textContent = 'Funky Doodle'")).to be_nil
      expect(@session).to have_css('#change', text: 'Funky Doodle')
    end

    it 'should pass arguments to the script' do
      @session.visit('/with_js')
      @session.find(:css, '#change').execute_script('this.textContent = arguments[0]', 'Doodle Funk')
      expect(@session).to have_css('#change', text: 'Doodle Funk')
    end
  end

  describe '#evaluate_script', requires: %i[js es_args] do
    it 'should evaluate the given script in the context of the element and return whatever it produces' do
      @session.visit('/with_js')
      el = @session.find(:css, '#with_change_event')
      expect(el.evaluate_script('this.value')).to eq('default value')
    end

    it 'should ignore leading whitespace' do
      @session.visit('/with_js')
      expect(@session.find(:css, '#change').evaluate_script('
        2 + 3
      ')).to eq 5
    end

    it 'should pass arguments to the script' do
      @session.visit('/with_js')
      @session.find(:css, '#change').evaluate_script('this.textContent = arguments[0]', 'Doodle Funk')
      expect(@session).to have_css('#change', text: 'Doodle Funk')
    end

    it 'should pass multiple arguments' do
      @session.visit('/with_js')
      change = @session.find(:css, '#change')
      expect(change.evaluate_script('arguments[0] + arguments[1]', 2, 3)).to eq 5
    end

    it 'should support returning elements' do
      @session.visit('/with_js')
      change = @session.find(:css, '#change') # ensure page has loaded and element is available
      el = change.evaluate_script('this')
      expect(el).to be_instance_of(Capybara::Node::Element)
      expect(el).to eq(change)
    end

    it 'should support multiple statements via IIFE' do
      @session.visit('/with_js')
      change = @session.find(:css, '#change') # ensure page has loaded and element is available
      res = change.evaluate_script(<<~JS, 3)
        (function(n){
          var el = this;
          return [el, n];
        }).apply(this, arguments)
      JS
      expect(res).to eq [change, 3]
    end
  end

  describe '#evaluate_async_script', requires: %i[js es_args] do
    it 'should evaluate the given script in the context of the element' do
      @session.visit('/with_js')
      el = @session.find(:css, '#with_change_event')
      expect(el.evaluate_async_script('arguments[0](this.value)')).to eq('default value')
    end

    it 'should support returning elements after asynchronous operation' do
      @session.visit('/with_js')
      change = @session.find(:css, '#change') # ensure page has loaded and element is available
      el = change.evaluate_async_script('var cb = arguments[0]; setTimeout(function(el){ cb(el) }, 100, this)')
      expect(el).to eq(change)
    end
  end

  describe '#shadow_root', requires: %i[js] do
    it 'should get the shadow root' do
      @session.visit('/with_shadow')
      expect do
        shadow_root = @session.find(:css, '#shadow_host').shadow_root
        expect(shadow_root).to be_a(Capybara::Node::Element)
      end.not_to raise_error
    end

    it 'should find elements inside the shadow dom using CSS' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      expect(shadow_root).to have_css('#shadow_content', text: 'some text')
    end

    it 'should find nested shadow roots' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      nested_shadow_root = shadow_root.find(:css, '#nested_shadow_host').shadow_root
      expect(nested_shadow_root).to have_css('#nested_shadow_content', text: 'nested text')
    end

    it 'should click on elements' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      checkbox = shadow_root.find(:css, 'input[type="checkbox"]')
      expect(checkbox).not_to be_checked
      checkbox.click
      expect(checkbox).to be_checked
    end

    it 'should use convenience methods once moved to a descendant of the shadow root' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      descendant = shadow_root.find(:css, '#controls_wrapper')
      expect do
        descendant.check('shadow_checkbox')
      end.not_to raise_error
      expect(descendant).to have_checked_field('shadow_checkbox')
    end

    it 'should produce error messages when failing' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      expect do
        expect(shadow_root).to have_css('#shadow_content', text: 'Not in the document')
      end.to raise_error(/tag="ShadowRoot"/)
    end

    it 'should get visible text' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      expect(shadow_root).to have_text('some text scroll.html')
    end

    it 'should get all text' do
      @session.visit('/with_shadow')
      shadow_root = @session.find(:css, '#shadow_host').shadow_root
      expect(shadow_root).to have_text(:all, 'some text scroll.html')
    end
  end

  describe '#reload', requires: [:js] do
    it 'should reload elements found via ancestor with CSS' do
      @session.visit('/with_js')
      node = @session.find(:css, '#reload-me em').ancestor(:css, 'div')
      node.reload
      expect(node[:id]).to eq 'reload-me'
    end

    it 'should reload elements found via ancestor with XPath' do
      @session.visit('/with_js')
      node = @session.find(:css, '#reload-me em').ancestor(:xpath, './/div')
      node.reload
      expect(node[:id]).to eq 'reload-me'
    end

    it 'should reload elements found via sibling' do
      @session.visit('/with_js')
      node = @session.find(:css, '#the-list li', text: 'Item 1').sibling(:css, 'li')
      expect(node.text).to eq 'Item 2'
      node.reload
      expect(node.text).to eq 'Item 2'
    end

    context 'without automatic reload' do
      before { Capybara.automatic_reload = false }

      after { Capybara.automatic_reload = true }

      it 'should reload the current context of the node' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me')
        @session.click_link('Reload!')
        sleep(0.3)
        expect(node.reload.text).to eq('has been reloaded')
        expect(node.text).to eq('has been reloaded')
      end

      it 'should reload a parent node' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me').find(:css, 'em')
        @session.click_link('Reload!')
        sleep(0.3)
        expect(node.reload.text).to eq('has been reloaded')
        expect(node.text).to eq('has been reloaded')
      end

      it 'should not automatically reload' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me')
        @session.click_link('Reload!')
        sleep(0.3)
        expect do
          expect(node).to have_text('has been reloaded')
        end.to(raise_error do |error|
          expect(error).to be_an_invalid_element_error(@session)
        end)
      end
    end

    context 'with automatic reload' do
      before do
        Capybara.default_max_wait_time = 4
      end

      it 'should reload the current context of the node automatically' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me')
        @session.click_link('Reload!')
        sleep(1)
        expect(node.text).to eq('has been reloaded')
      end

      it 'should reload a parent node automatically' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me').find(:css, 'em')
        @session.click_link('Reload!')
        sleep(1)
        expect(node.text).to eq('has been reloaded')
      end

      it 'should reload a node automatically when using find' do
        @session.visit('/with_js')
        node = @session.find(:css, '#reload-me')
        @session.click_link('Reload!')
        sleep(1)
        expect(node.find(:css, 'a').text).to eq('has been reloaded')
      end

      it "should not reload nodes which haven't been found with reevaluateable queries" do
        @session.visit('/with_js')
        node = @session.all(:css, '#the-list li')[1]
        @session.click_link('Fetch new list!')
        sleep(1)

        expect do
          expect(node).to have_text('Foo')
        end.to(raise_error { |error| expect(error).to be_an_invalid_element_error(@session) })
        expect do
          expect(node).to have_text('Bar')
        end.to(raise_error { |error| expect(error).to be_an_invalid_element_error(@session) })
      end

      it 'should reload nodes with options' do
        @session.visit('/with_js')
        node = @session.find(:css, 'em', text: 'reloaded')
        @session.click_link('Reload!')
        sleep(1)
        expect(node.text).to eq('has been reloaded')
      end
    end
  end

  context 'when #synchronize raises server errors' do
    it 'sets an explanatory exception as the cause of server exceptions', requires: %i[server js] do
      quietly { @session.visit('/error') }
      expect do
        @session.find(:css, 'span')
      end.to(raise_error(TestApp::TestAppError) do |e|
        expect(e.cause).to be_a Capybara::CapybaraError
        expect(e.cause.message).to match(/Your application server raised an error/)
      end)
    end

    it 'sets an explanatory exception as the cause of server exceptions with errors with initializers', requires: %i[server js] do
      quietly { @session.visit('/other_error') }
      expect do
        @session.find(:css, 'span')
      end.to(raise_error(TestApp::TestAppOtherError) do |e|
        expect(e.cause).to be_a Capybara::CapybaraError
        expect(e.cause.message).to match(/Your application server raised an error/)
      end)
    end
  end
end