teamcapybara--capybara/spec/shared_selenium_session.rb

# frozen_string_literal: true

require 'spec_helper'
require 'selenium-webdriver'

RSpec.shared_examples 'Capybara::Session' do |session, mode|
  let(:session) { session }

  context 'with selenium driver' do
    describe '#driver' do
      it 'should be a selenium driver' do
        expect(session.driver).to be_an_instance_of(Capybara::Selenium::Driver)
      end
    end

    describe '#mode' do
      it 'should remember the mode' do
        expect(session.mode).to eq(mode)
      end
    end

    describe '#reset!' do
      it 'freshly reset session should not be touched' do
        session.instance_variable_set(:@touched, true)
        session.reset!
        expect(session.instance_variable_get(:@touched)).to eq false
      end
    end

    describe 'exit codes' do
      let(:env) { { 'SELENIUM_BROWSER' => session.driver.options[:browser].to_s } }
      let!(:orig_dir) { Dir.getwd }

      before do
        Dir.chdir(File.join(File.dirname(__FILE__), '..'))
      end

      after do
        Dir.chdir(orig_dir)
      end

      it 'should have return code 1 when running selenium_driver_rspec_failure.rb' do
        skip 'only setup for local non-headless' if headless_or_remote?
        skip 'Not setup for edge' if edge?(session)

        system(env, 'rspec spec/fixtures/selenium_driver_rspec_failure.rb', out: File::NULL, err: File::NULL)
        expect($CHILD_STATUS.exitstatus).to eq(1)
      end

      it 'should have return code 0 when running selenium_driver_rspec_success.rb' do
        skip 'only setup for local non-headless' if headless_or_remote?
        skip 'Not setup for edge' if edge?(session)

        system(env, 'rspec spec/fixtures/selenium_driver_rspec_success.rb', out: File::NULL, err: File::NULL)
        expect($CHILD_STATUS.exitstatus).to eq(0)
      end
    end

    describe '#accept_alert', requires: [:modals] do
      it 'supports a blockless mode' do
        session.visit('/with_js')
        session.click_link('Open alert')
        session.accept_alert
        expect { session.driver.browser.switch_to.alert }.to raise_error(session.driver.send(:modal_error))
      end

      it 'can be called before visiting' do
        session.accept_alert 'Initial alert' do
          session.visit('/initial_alert')
        end
        expect(session).to have_text('Initial alert page')
      end
    end

    describe '#fill_in_with empty string and no options' do
      it 'should trigger change when clearing a field' do
        pending "safaridriver doesn't trigger change for clear" if safari?(session)
        session.visit('/with_js')
        session.fill_in('with_change_event', with: '')
        # click outside the field to trigger the change event
        session.find(:css, 'body').click
        expect(session).to have_selector(:css, '.change_event_triggered', match: :one)
      end
    end

    describe '#fill_in with { :clear => :backspace } fill_option', requires: [:js] do
      before do
        # Firefox has an issue with change events if the main window doesn't think it's focused
        session.execute_script('window.focus()')
      end

      it 'should fill in a field, replacing an existing value' do
        session.visit('/form')
        session.fill_in('form_first_name',
                        with: 'Harry',
                        fill_options: { clear: :backspace })
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('Harry')
      end

      it 'should fill in a field, replacing an existing value, even with caret position' do
        session.visit('/form')
        session.find(:css, '#form_first_name').execute_script <<-JS
          this.focus();
          this.setSelectionRange(0, 0);
        JS

        session.fill_in('form_first_name',
                        with: 'Harry',
                        fill_options: { clear: :backspace })
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('Harry')
      end

      it 'should fill in if the option is set via global option' do
        Capybara.default_set_options = { clear: :backspace }
        session.visit('/form')
        session.fill_in('form_first_name', with: 'Thomas')
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('Thomas')
      end

      it 'should only trigger onchange once' do
        session.visit('/with_js')
        sleep 2 if safari?(session) # Safari needs a delay (to load event handlers maybe ???)
        session.fill_in('with_change_event',
                        with: 'some value',
                        fill_options: { clear: :backspace })
        # click outside the field to trigger the change event
        session.find(:css, '#with_focus_event').click
        expect(session.find(:css, '.change_event_triggered', match: :one, wait: 5)).to have_text 'some value'
      end

      it 'should trigger change when clearing field' do
        session.visit('/with_js')
        session.fill_in('with_change_event',
                        with: '',
                        fill_options: { clear: :backspace })
        # click outside the field to trigger the change event
        session.find(:css, '#with_focus_event').click
        expect(session).to have_selector(:css, '.change_event_triggered', match: :one, wait: 5)
      end

      it 'should trigger input event field_value.length times' do
        session.visit('/with_js')
        session.fill_in('with_change_event',
                        with: '',
                        fill_options: { clear: :backspace })
        # click outside the field to trigger the change event
        # session.find(:css, 'body').click
        session.find(:css, 'h1', text: 'FooBar').click
        expect(session).to have_xpath('//p[@class="input_event_triggered"]', count: 13)
      end
    end

    describe '#fill_in with { clear: :none } fill_options' do
      it 'should append to content in a field' do
        pending 'Safari overwrites by default - need to figure out a workaround' if safari?(session)

        session.visit('/form')
        session.fill_in('form_first_name',
                        with: 'Harry',
                        fill_options: { clear: :none })
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('JohnHarry')
      end

      it 'works with rapid fill' do
        pending 'Safari overwrites by default - need to figure out a workaround' if safari?(session)

        long_string = (0...60).map { |i| ((i % 26) + 65).chr }.join
        session.visit('/form')
        session.fill_in('form_first_name', with: long_string, fill_options: { clear: :none })
        expect(session.find(:fillable_field, 'form_first_name').value).to eq("John#{long_string}")
      end
    end

    describe '#fill_in with Date' do
      before do
        session.visit('/form')
        session.find(:css, '#form_date').execute_script <<-JS
          window.capybara_formDateFiredEvents = [];
          var fd = this;
          ['focus', 'input', 'change'].forEach(function(eventType) {
            fd.addEventListener(eventType, function() { window.capybara_formDateFiredEvents.push(eventType); });
          });
        JS
        # work around weird FF issue where it would create an extra focus issue in some cases
        session.find(:css, 'h1', text: 'Form').click
        # session.find(:css, 'body').click
      end

      it 'should generate standard events on changing value' do
        pending "IE 11 doesn't support date input type" if ie?(session)
        pending "Safari doesn't support date input type" if safari?(session)
        session.fill_in('form_date', with: Date.today)
        expect(session.evaluate_script('window.capybara_formDateFiredEvents')).to eq %w[focus input change]
      end

      it 'should not generate input and change events if the value is not changed' do
        pending "IE 11 doesn't support date input type" if ie?(session)
        pending "Safari doesn't support date input type" if safari?(session)
        session.fill_in('form_date', with: Date.today)
        session.fill_in('form_date', with: Date.today)
        # Chrome adds an extra focus for some reason - ok for now
        expect(session.evaluate_script('window.capybara_formDateFiredEvents')).to eq(%w[focus input change])
      end
    end

    describe '#fill_in with { clear: Array } fill_options' do
      it 'should pass the array through to the element' do
        # this is mainly for use with [[:control, 'a'], :backspace] - however since that is platform dependant I'm testing with something less useful
        session.visit('/form')
        session.fill_in('form_first_name',
                        with: 'Harry',
                        fill_options: { clear: [[:shift, 'abc'], :backspace] })
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('JohnABHarry')
      end
    end

    describe '#fill_in with Emoji' do
      it 'sends emojis' do
        session.visit('/form')
        session.fill_in('form_first_name', with: 'a😀cd😴 🛌🏽🇵🇹 e🤾🏽‍♀️f')
        expect(session.find(:fillable_field, 'form_first_name').value).to eq('a😀cd😴 🛌🏽🇵🇹 e🤾🏽‍♀️f')
      end
    end

    describe '#send_keys' do
      it 'defaults to sending keys to the active_element' do
        session.visit('/form')

        expect(session.active_element).to match_selector(:css, 'body')

        session.send_keys(:tab)

        expect(session.active_element).to match_selector(:css, '[tabindex="1"]')
      end
    end

    describe '#path' do
      it 'returns xpath' do
        # this is here because it is testing for an XPath that is specific to the algorithm used in the selenium driver
        session.visit('/path')
        element = session.find(:link, 'Second Link')
        expect(element.path).to eq('/HTML/BODY[1]/DIV[2]/A[1]')
      end

      it 'handles namespaces in xhtml' do
        pending "IE 11 doesn't handle all XPath querys (namespace-uri, etc)" if ie?(session)
        session.visit '/with_namespace'
        rect = session.find(:css, 'div svg rect:first-of-type')
        expect(rect.path).to eq("/HTML/BODY[1]/DIV[1]/*[local-name()='svg' and namespace-uri()='http://www.w3.org/2000/svg'][1]/*[local-name()='rect' and namespace-uri()='http://www.w3.org/2000/svg'][1]")
        expect(session.find(:xpath, rect.path)).to eq rect
      end

      it 'handles default namespaces in html5' do
        pending "IE 11 doesn't handle all XPath querys (namespace-uri, etc)" if ie?(session)
        session.visit '/with_html5_svg'
        rect = session.find(:css, 'div svg rect:first-of-type')
        expect(rect.path).to eq("/HTML/BODY[1]/DIV[1]/*[local-name()='svg' and namespace-uri()='http://www.w3.org/2000/svg'][1]/*[local-name()='rect' and namespace-uri()='http://www.w3.org/2000/svg'][1]")
        expect(session.find(:xpath, rect.path)).to eq rect
      end

      it 'handles case sensitive element names' do
        pending "IE 11 doesn't handle all XPath querys (namespace-uri, etc)" if ie?(session)
        session.visit '/with_namespace'
        els = session.all(:css, 'div *', visible: :all)
        expect { els.map(&:path) }.not_to raise_error
        lg = session.find(:css, 'div linearGradient', visible: :all)
        expect(session.find(:xpath, lg.path, visible: :all)).to eq lg
      end
    end

    describe 'all with disappearing elements' do
      it 'ignores stale elements in results' do
        session.visit('/path')
        elements = session.all(:link) { |_node| raise Selenium::WebDriver::Error::StaleElementReferenceError }
        expect(elements.size).to eq 0
      end
    end

    describe '#evaluate_script' do
      it 'can return an element' do
        session.visit('/form')
        element = session.evaluate_script("document.getElementById('form_title')")
        expect(element).to eq session.find(:id, 'form_title')
      end

      it 'can return arrays of nested elements' do
        session.visit('/form')
        elements = session.evaluate_script('document.querySelectorAll("#form_city option")')
        expect(elements).to all(be_instance_of Capybara::Node::Element)
        expect(elements).to eq session.find(:css, '#form_city').all(:css, 'option').to_a
      end

      it 'can return hashes with elements' do
        session.visit('/form')
        result = session.evaluate_script("{ a: document.getElementById('form_title'), b: {c: document.querySelectorAll('#form_city option')}}")
        expect(result).to eq(
          'a' => session.find(:id, 'form_title'),
          'b' => {
            'c' => session.find(:css, '#form_city').all(:css, 'option').to_a
          }
        )
      end

      describe '#evaluate_async_script' do
        it 'will timeout if the script takes too long' do
          skip 'safaridriver returns the wrong error type' if safari?(session)
          session.visit('/with_js')
          expect do
            session.using_wait_time(1) do
              session.evaluate_async_script('var cb = arguments[0]; setTimeout(function(){ cb(null) }, 3000)')
            end
          end.to raise_error Selenium::WebDriver::Error::ScriptTimeoutError
        end
      end
    end

    describe 'Element#inspect' do
      it 'outputs obsolete elements' do
        session.visit('/form')
        el = session.find(:button, 'Click me!').click
        expect(session).to have_no_button('Click me!')
        allow(el).to receive(:synchronize)
        expect(el.inspect).to eq 'Obsolete #<Capybara::Node::Element>'
        expect(el).not_to have_received(:synchronize)
      end
    end

    describe 'Element#click' do
      it 'should handle fixed headers/footers' do
        session.visit('/with_fixed_header_footer')
        session.using_wait_time(2) do
          session.find(:link, 'Go to root').click
        end
        expect(session).to have_current_path('/')
      end
    end

    describe 'Capybara#Node#attach_file' do
      it 'can attach a directory' do
        pending "Geckodriver doesn't support uploading a directory" if firefox?(session)
        pending "Selenium remote doesn't support transferring a directory" if remote?(session)
        pending "Headless Chrome doesn't support directory upload - https://bugs.chromium.org/p/chromedriver/issues/detail?id=2521&q=directory%20upload&colspec=ID%20Status%20Pri%20Owner%20Summary" if chrome?(session) && ENV['HEADLESS']
        pending "IE doesn't support uploading a directory" if ie?(session)
        pending 'Chrome/chromedriver 73 breaks this' if chrome?(session) && chrome_gte?(73, session) && chrome_lt?(75, session)
        pending "Safari doesn't support uploading a directory" if safari?(session)
        # pending "Edge/msedgedriver doesn't support directory upload" if edge?(session) && edge_gte?(75, session)

        session.visit('/form')
        test_file_dir = File.expand_path('./fixtures', File.dirname(__FILE__))
        session.attach_file('Directory Upload', test_file_dir)
        session.click_button('Upload Multiple')
        expect(session.body).to include('5 | ') # number of files
      end

      it 'can attach a relative file' do
        pending 'Geckdoriver on windows requires alternate file separator which path expansion replaces' if Gem.win_platform? && firefox?(session)

        session.visit('/form')
        session.attach_file('Single Document', 'spec/fixtures/capybara.csv')
        session.click_button('Upload Single')
        expect(session.body).to include('Content-type: text/csv')
      end
    end

    context 'Windows' do
      it "can't close the primary window" do
        expect do
          session.current_window.close
        end.to raise_error(ArgumentError, 'Not allowed to close the primary window')
      end
    end

    # rubocop:disable RSpec/InstanceVariable
    describe 'Capybara#disable_animation' do
      context 'when set to `true`' do
        before(:context) do # rubocop:disable RSpec/BeforeAfterAll
          skip "Safari doesn't support multiple sessions" if safari?(session)
          # NOTE: Although Capybara.SpecHelper.reset! sets Capybara.disable_animation to false,
          # it doesn't affect any of these tests because the settings are applied per-session
          Capybara.disable_animation = true
          @animation_session = Capybara::Session.new(session.mode, TestApp.new)
        end

        it 'should add CSS to the <head> element' do
          @animation_session.visit('with_animation')

          expect(@animation_session).to have_selector(:css, 'head > style', text: 'transition: none', visible: :hidden)
        end

        it 'should disable CSS transitions' do
          @animation_session.visit('with_animation')
          @animation_session.click_link('transition me away')
          expect(@animation_session).to have_no_link('transition me away', wait: 0.5)
        end

        it 'should disable CSS animations (set to 0s)' do
          @animation_session.visit('with_animation')
          sleep 1
          @animation_session.click_link('animate me away')
          expect(@animation_session).to have_no_link('animate me away', wait: 0.5)
        end

        it 'should disable CSS animations on pseudo elements (set to 0s)' do
          @animation_session.visit('with_animation')
          sleep 1
          @animation_session.find_link('animate me away').right_click
          expect(@animation_session).to have_content('Animation Ended', wait: 0.1)
        end

        it 'should scroll the page instantly', requires: [:js] do
          @animation_session.visit('with_animation')
          scroll_y = @animation_session.evaluate_script(<<~JS)
            (function(){
              window.scrollTo(0,500);
              return window.scrollY;
            })()
          JS
          expect(scroll_y).to eq 500
        end

        it 'should scroll the page instantly without jquery animation', requires: [:js] do
          @animation_session.visit('with_jquery_animation')
          @animation_session.click_link('scroll top 500')
          scroll_y = @animation_session.evaluate_script('window.scrollY')
          expect(scroll_y).to eq 500
        end
      end

      context 'when set to `false`' do
        before(:context) do # rubocop:disable RSpec/BeforeAfterAll
          skip "Safari doesn't support multiple sessions" if safari?(session)
          # NOTE: Although Capybara.SpecHelper.reset! sets Capybara.disable_animation to false,
          # it doesn't affect any of these tests because the settings are applied per-session
          Capybara.disable_animation = false
          @animation_session = Capybara::Session.new(session.mode, TestApp.new)
        end

        it 'should scroll the page with a smooth animation', requires: [:js] do
          @animation_session.visit('with_animation')
          scroll_y = @animation_session.evaluate_script(<<~JS)
            (function(){
              window.scrollTo(0,500);
              return window.scrollY;
            })()
          JS
          # measured over 0.5 seconds: 0, 75, 282, 478, 500
          expect(scroll_y).to be < 500
        end

        it 'should scroll the page with jquery animation', requires: [:js] do
          @animation_session.visit('with_jquery_animation')
          @animation_session.click_link('scroll top 500')
          scroll_y = @animation_session.evaluate_script('window.scrollY')
          expect(scroll_y).to be < 500
        end
      end

      context 'if we pass in css that matches elements' do
        before(:context) do # rubocop:disable RSpec/BeforeAfterAll
          skip "safaridriver doesn't support multiple sessions" if safari?(session)
          # NOTE: Although Capybara.SpecHelper.reset! sets Capybara.disable_animation to false,
          # it doesn't affect any of these tests because the settings are applied per-session
          Capybara.disable_animation = '#with_animation a'
          @animation_session_with_matching_css = Capybara::Session.new(session.mode, TestApp.new)
        end

        it 'should disable CSS transitions' do
          @animation_session_with_matching_css.visit('with_animation')
          sleep 1
          @animation_session_with_matching_css.click_link('transition me away')
          expect(@animation_session_with_matching_css).to have_no_link('transition me away', wait: 0.5)
        end

        it 'should disable CSS animations' do
          @animation_session_with_matching_css.visit('with_animation')
          sleep 1
          @animation_session_with_matching_css.click_link('animate me away')
          expect(@animation_session_with_matching_css).to have_no_link('animate me away', wait: 0.5)
        end
      end

      context 'if we pass in css that does not match elements' do
        before(:context) do # rubocop:disable RSpec/BeforeAfterAll
          skip "Safari doesn't support multiple sessions" if safari?(session)
          # NOTE: Although Capybara.SpecHelper.reset! sets Capybara.disable_animation to false,
          # it doesn't affect any of these tests because the settings are applied per-session
          Capybara.disable_animation = '.this-class-matches-nothing'
          @animation_session_without_matching_css = Capybara::Session.new(session.mode, TestApp.new)
        end

        it 'should not disable CSS transitions' do
          @animation_session_without_matching_css.visit('with_animation')
          sleep 1
          @animation_session_without_matching_css.click_link('transition me away')
          sleep 0.5 # Wait long enough for click to have been processed
          expect(@animation_session_without_matching_css).to have_link('transition me away', wait: false)
          expect(@animation_session_without_matching_css).to have_no_link('transition me away', wait: 5)
        end

        it 'should not disable CSS animations' do
          @animation_session_without_matching_css.visit('with_animation')
          sleep 1
          @animation_session_without_matching_css.click_link('animate me away')
          sleep 0.5 # Wait long enough for click to have been processed
          expect(@animation_session_without_matching_css).to have_link('animate me away', wait: false)
          expect(@animation_session_without_matching_css).to have_no_link('animate me away', wait: 5)
        end
      end
    end
    # rubocop:enable RSpec/InstanceVariable

    describe ':element selector' do
      it 'can find html5 svg elements' do
        session.visit('with_html5_svg')
        expect(session).to have_selector(:element, :svg)
        expect(session).to have_selector(:element, :rect, visible: :visible)
        expect(session).to have_selector(:element, :circle)
        expect(session).to have_selector(:element, :linearGradient, visible: :all)
      end

      it 'can query attributes with strange characters' do
        session.visit('/form')
        expect(session).to have_selector(:element, '{custom}': true)
        expect(session).to have_selector(:element, '{custom}': 'abcdef')
      end
    end

    describe 'with react' do
      context 'controlled components' do
        it 'can set and clear a text field' do
          skip "This test doesn't support older browsers" if ie?(session)

          session.visit 'react'

          session.fill_in('Name:', with: 'abc')
          session.accept_prompt 'A name was submitted: abc' do
            session.click_button('Submit')
          end

          session.fill_in('Name:', with: '')
          session.accept_prompt(/A name was submitted: $/) do
            session.click_button('Submit')
          end
        end

        it 'works with rapid fill' do
          skip "This test doesn't support older browsers" if ie?(session)

          session.visit 'react'
          long_string = (0...60).map { |i| ((i % 26) + 65).chr }.join

          session.fill_in('Name:', with: long_string)
          session.accept_prompt "A name was submitted: #{long_string}" do
            session.click_button('Submit')
          end
        end
      end
    end
  end

  def headless_or_remote?
    !ENV['HEADLESS'].nil? || session.driver.options[:browser] == :remote
  end
end