CROSS BROWSER TESTING WITH SELENIUM MARCO PICELLO [email protected] 

WHO AM I Marco Picello J2EE consultant Automation lover 

AGENDA What is Selenium webdriver Good parts Bad parts Q&A 

TODAY FUNCTIONAL TEST OF WEB APP Multiple browser Multiple display dimensions (a.k.a. Responsive design) Mobile app Time consuming Error prone Booring!!!! 

BENEFITS OF AUTOMATIC FUNCTIONAL TESTING OF WEB APPLICATION Frequent regression testing Rapid feedback to developers Form of documentation for test cases, automatically generated, and up to date Custom defect reporting Finding defect missing by manual testing 

SELENIUM Created by Thoughworks in 2007 Now opensource Set of components for automated testing Custom defect reporting Used by Thoughworks, Facebook, Google, and many others 

SELENIUM COMPONENTS Selenium IDE Selenium WebDriver Selenium Grid 

OK, SO WHAT CAN I DO WITH WEBDRIVER? Open a web page in a real browser Change browser dimensions Interact with browser: click on link, upload file, fill input field, click on checkbox, etc Take web page's screenshots Get the page source 

SELENIUM WEBDRIVER OVERVIEW 

JSON WIRE PROTOCOL 

SUPPORTED BROWSERS Internet Explorer 6, 7, 8, 9, 10 FireFox Safari Opera HtmlUnit phantomjs Android (with Selendroid or appium) iOS (with ios-driver or appium) 

SELENIUM WEBDRIVER CLIENT, DEVELOPED OFFICIALLY Java C# Ruby Python Javascript (Node) 

SELENIUM WEBDRIVER CLIENT, DEVELOPED NOT OFFICIALLY PHP Perl Objective-C R Dart TCL Go 

HELLO WORLD SELENIUM // Create a new instance of the Firefox driver WebDriver driver = new FirefoxDriver(); // And now use this to visit Google driver.get("http://www.google.com"); // Find the text input element by its name WebElement element = driver.findElement(By.name("q")); // Enter something to search for element.sendKeys("Cheese!"); // Now submit the form. WebDriver will find the form for us from the element element.submit(); //Close the browser driver.quit(); 

GOOD PARTS Mature project (current version is 2.44.0) Cross browser Language indipendent 

BAD PARTS!!! Tests are slow Flaky test It's just a driver!!! You'll write lots of boilerplate code 

TESTS ARE SLOW Parallelize: split long test in multiple small test Use the grid Luke!!!!!! Use the cloud Luke!!!!!! (https://saucelabs.com/) 

FLAKY TEST Facebook runs each test X times to check if a test is flaky 

IT'S JUST A DRIVER Missing out of the box functional testing solution Need to put several pieces together: testing framework (junit), report framework (NGReport) 

BOILERPLATE CODE Automatic Functional Tests != Automatic Generation of Functional Tests Developers need to write boilerplate code, lot's of boilerplate code!!!!!!! Use PageObjects 

SUGGESTION FOR A SAFE START Start small, stay small: write tests for the most often used case, or small case, then gradually add other tests Use Page Objects Automatic Page Object Generation, after each build 

IS IT REALLY WORTH?? THERE IS NO SILVER BULLET!!!!!! 

Q&A THANKS