Question

What are some of the common exceptions one could face in Selenium?

Answer 1

Hey Monisha, some of the common Selenium Exceptions are as follows:

1. WebDriverException: WebDriver Exception comes when we try to perform any action on the non-existing driver.

   • WebDriver driver = new InternetExplorerDriver();
     driver.get("http://google.com");
     driver.close();
     driver.quit();

2. NoAlertPresentException: When we try to perform an action i.e., either accept() or dismiss() which is not required at a required place; gives us this exception.

   • try{
     driver.switchTo().alert().accept();
     }
     catch (NoAlertPresentException E){
     E.printStackTrace();
     }

3. NoSuchWindowException: When we try to switch to a window which is not present gives us this exception:

   • WebDriver driver = new InternetExplorerDriver();
     driver.get("http://google.com");
     driver.switchTo().window("Yup_Fail");
     driver.close();

4. NoSuchFrameException: Similar to Window exception, Frame exception mainly comes during switching between the frames.

   • WebDriver driver = new InternetExplorerDriver();
     driver.get("http://google.com");
     driver.switchTo().frame("F_fail");
     driver.close();

5. NoSuchElementException: This exception is thrown when we WebDriver doesn’t find the web-element in the DOM.

   • WebDriver driver = new InternetExplorerDriver();
     driver.get("http://google.com");
     driver.findElement(By.name("fake")).click();