Discover AI-native insights at Testμ Conference‘25

How to use evaluate_async_script method of Capybara.Node Package

Best Capybara code snippet using Capybara.Node.evaluate_async_script

evaluate_async_script_spec.rb

1# frozen_string_literal: true2Capybara::SpecHelper.spec '#evaluate_async_script', requires: [:js] do3  it 'should evaluate the given script and return whatever it produces' do4    @session.visit('/with_js')5    expect(@session.evaluate_async_script('arguments[0](4)')).to eq(4)6  end7  it 'should support passing elements as arguments to the script', requires: %i[js es_args] do8    @session.visit('/with_js')9    el = @session.find(:css, '#drag p')10    result = @session.evaluate_async_script('arguments[2]([arguments[0].innerText, arguments[1]])', el, 'Doodle Funk')11    expect(result).to eq ['This is a draggable element.', 'Doodle Funk']12  end13  it 'should support returning elements after asynchronous operation', requires: %i[js es_args] do14    @session.visit('/with_js')15    @session.find(:css, '#change') # ensure page has loaded and element is available16    el = @session.evaluate_async_script("var cb = arguments[0]; setTimeout(function(){ cb(document.getElementById('change')) }, 100)")17    expect(el).to be_instance_of(Capybara::Node::Element)18    expect(el).to eq(@session.find(:css, '#change'))19  end20end...

evaluate_async_script

Using AI Code Generation

1  Capybara::Selenium::Driver.new(app, :browser => :chrome)2  def evaluate_async_script(script)3    driver.evaluate_script(script, self)4Capybara::Session.new(:selenium).visit('http://google.com').evaluate_async_script(<<-JS)5  var callback = arguments[arguments.length - 1];6  callback('Hello World!');

evaluate_async_script

Using AI Code Generation

1    def evaluate_async_script(script, *args)2      driver.evaluate_async_script(self, script, *args)3Capybara::Session.new(:poltergeist).visit('/').evaluate_async_script("function(done){ setTimeout(function(){ done('hello'); }, 1000); }").should == 'hello'4Capybara::Session.new(:poltergeist).visit('/').evaluate_async_script("function(done){ setTimeout(function(){ done('hello'); }, 1000); }").should == 'hello'5Capybara::Session.new(:poltergeist).visit('/').find('body').evaluate_async_script("function(done){ setTimeout(function(){ done('hello'); }, 1000); }").should == 'hello'6Capybara::Session.new(:poltergeist).visit('/').evaluate_async_script("function(done){ setTimeout(function(){ done('hello'); }, 1000); }").should ==

evaluate_async_script

Using AI Code Generation

1  Capybara::Poltergeist::Driver.new(app, timeout: 60, js_errors: false)2  def evaluate_async_script(script, *args)3    browser.evaluate_async_script(script, *args)4  def evaluate_async_script(script, *args)5    driver.browser.evaluate_async_script(script, *args)6  def evaluate_async_script(script, *args)7    page.evaluate_async_script(script, *args)8evaluate_async_script("window.setTimeout(function() { alert('hi'); }, 5000);")

evaluate_async_script

Using AI Code Generation

1    Capybara.current_session.driver.browser.evaluate_async_script("myRemoteFunction()")2    Capybara.current_session.driver.browser.evaluate_script("myRemoteFunction()")3    Capybara.current_session.driver.browser.execute_script("myRemoteFunction()")4    Capybara.current_session.driver.browser.execute_async_script("myRemoteFunction()")

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