KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use evaluate_async_script method of Capybara Package

Best Capybara code snippet using Capybara.evaluate_async_script

evaluate_async_script_spec.rb

Source: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    page.driver.headers = { 'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.152 Safari/537.36' }2    page.evaluate_async_script("window.setTimeout(arguments[arguments.length - 1], 5000);")3    puts page.evaluate_script("window.location.href")

evaluate_async_script

Using AI Code Generation

1  Capybara::Poltergeist::Driver.new(app, { js_errors: false,2                                           phantomjs_logger: File.open('/dev/null', 'w') })3Capybara::Session.new(:poltergeist).visit('http://www.google.com')4Capybara::Session.new(:poltergeist).evaluate_async_script("window.setTimeout(arguments[arguments.length - 1], 5000);")5Capybara::Session.new(:poltergeist).save_screenshot('screenshot.png')

evaluate_async_script

Using AI Code Generation

1  Capybara::Poltergeist::Driver.new(app, :js_errors => false)2  def evaluate_async_script(script, *args)3    evaluate_script(script, *args)4Capybara.visit('/')5Capybara.evaluate_async_script("window.setTimeout(function() { done('hello world') }, 5000)")6  Capybara::Poltergeist::Driver.new(app, :js_errors => false)7  def evaluate_async_script(script, *args)8    evaluate_script(script, *args)9Capybara.visit('/')10Capybara.current_session.evaluate_async_script("window.setTimeout(function() { done('hello world') }, 5000)")

evaluate_async_script

Using AI Code Generation

1      setTimeout(function(){2        var title = document.title;3        var url = document.URL;4        var result = {title: title, url: url};5        arguments[0](result);6      }, 2000);7      var title = document.title;8      var url = document.URL;9      var result = {title: title, url: url};10      result;

evaluate_async_script

Using AI Code Generation

1  Capybara::Poltergeist::Driver.new(app, :js_errors => false)2  def evaluate_async_script(script, *args)3    evaluate_script(script, *args)4Capybara.visit('/')5Capybara.evaluate_async_script("window.setTimeout(function() { done('hello world') }, 5000)")6  Capybara::Poltergeist::Driver.new(app, :js_errors => false)7  def evaluate_async_script(script, *args)8    evaluate_script(script, *args)9Capybara.visit('/')10Capybara.current_session.evaluate_async_script("window.setTimeout(function() { done('hello world') }, 5000)")

evaluate_async_script

Using AI Code Generation

1visit('/')2result = evaluate_async_script('3var callback = arguments[arguments.length - 1];4var result = 1 + 1;5callback(result);6visit('/')7result = evaluate_script('8var result = 1 + 1;9return result;10visit('/')11execute_script('12var result = 1 + 1;13alert(result);14visit('/')15result = page.evaluate_async_script('16var callback = arguments[arguments.length - 1];17var result = 1 + 1;18callback(result);19      setTimeout(function(){20        var title = document.title;21        var url = document.URL;22        var result = {title: title, url: url};23        arguments[0](result);24      }, 2000);25      var title = document.title;26      var url = document.URL;27      var result = {title: title, url: url};28      result;

evaluate_async_script

Using AI Code Generation

1Capybara.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")2session = Capybara::Session.new(:selenium)3session.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")4session = Capybara::Session.new(:selenium)5session.visit('http://www.google.com')6session.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")7session = Capybara::Session.new(:selenium)8session.visit('http://www.google.com')9session.find(:css, 'body').evaluate_async_script("arguments[arguments.length - 1](1 + 2);")10session = Capybara::Session.new(:selenium)11session.visit('http://www.google.com')12session.driver.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")13session = Capybara::Session.new(:selenium)14session.visit('http://www.google.com')15session.driver.browser.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")16session = Capybara::Session.new(:selenium)17session.visit('http://www.google.com')18session.driver.browser.native.evaluate_async_script("arguments[arguments.length - 1](1 + 2);")

evaluate_async_script

Using AI Code Generation

1visit('/')2result = evaluate_async_script('3var callback = arguments[arguments.length - 1];4var result = 1 + 1;5callback(result);6visit('/')7result = evaluate_script('8var result = 1 + 1;9return result;10visit('/')11execute_script('12var result = 1 + 1;13alert(result);14visit('/')15result = page.evaluate_async_script('16var callback = arguments[arguments.length - 1];17var result = 1 + 1;18callback(result);

Automation Testing Tutorials

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