TOP 50 SELENIUM REALTIME INTERVIEW QUESTIONS

1. How does u handle dynamic elements without using

 xpath (with example?)

·         By using classname or css.

2. What are the different types of driver implementation?

·         AndroidDriver, AndroidWebDriver, ChromeDriver, EventFiringWebDriver, FirefoxDriver, HtmlUnitDriver, InternetExplorerDriver, IPhoneDriver, IPhoneSimulatorDriver, RemoteWebDriver, SafariDriver, WebDriverBackedSelenium

3. Code for Opening Firefox browser?

·         Webdriver driver=new FireFoxdriver();

4. Which repository you have used to store the test
 scripts?

I have created scripts in excel file and store them in Test cases folder under src .

5. How to work with radio button in web driver?

We can select the value from the drop down by using 3 methods.

selectByVisibleText - select by the text displayed in drop down

selectByIndex  - select by index of option in drop down

selectByValue  - select by value of option in drop down

<select id="44"><option value="1">xyz</option>

 <option value="2">abc</option>

 <option value="3">pqr</option>

</select>

http://akhilreddyonlineseleniumtrainings.blogspot.in/2015/09/selenium-realtime-interview-questions.html

WebElement e = driver.findElement(By.id("44"));

Select selectElement=new Select(e);

// both of the below statements will select first option in the weblist

selectElement.selectByVisibleText("xyz"); 

selectElement.selectByValue("1");

6. How to work with dynamic web table?

You can get the total number of <tr> tags within a <td> tag by giving the xpath of the
 <td> element by using  this function -

List<WebElement>ele = driver.findElements(By.xpath("Xpath of the table"));

Now you can use a for each loop to loop through each of the <tr> tags in the above list 
and then read each  value by using getText() method.

7. Detail about TestNG Test Output folder.

It is the directory where reports are generated. Every time tests run in a suite, TestNG 
creates index.html and  other files in the output directory.

8. In frame if no frame Id as well as no frame
 name then which attribute I should consider
throughout our script.

You can go like this.....driver.findElements(By.xpath("//iframe"))...

Then it will return List of frames then switch to each and every frame and search for
 the locator which you want then break the loop

9. What is object repository?

It is collection of object names their properties, attributes and their values .It maye be
 excel, XML,property file or text file

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10. TestNG vs. Junit?

Advantages of TestNG over Junit

         In Junit we have to declare @BeforeClass and @AfterClass which is a constraint where as in TestNG there is no constraint like this.

         Additional Levels of setUp/tearDown level are available in TestNG like @Before/AfterSuite,@Before/AfterTest and @Before/AfterGroup

         No Need to extend any class in TestNG.

         There is no method name constraint in TestNG as in Junit. You can give any name to the test methods in TestNG

         In TestNG we can tell the test that one method is dependent on another method where as in Junit this is not possible. In Junit each test is independent of another test.

         Grouping of testcases is available in TestNGwhere as the same is not available in Junit.

         Execution can be done based on Groups. For ex. If you have defined many cases and segregated them by defining 2 groups as Sanity and Regression. Then if you only want to execute the “Sanity” cases then just tell TestNG to execute the “Sanity” and TestNG will automatically execute the cases belonging to the “Sanity” group.

         Also using TestNG your selenium test case execution can be done in parallel.

11. What is the difference between @before
method and @beforeclass.

In JUnit4 @Before is used to execute set of preconditions before executing a test. 
 For example, if there is a need to open some application and create a user before 
executing a test, then this annotation can be used for that method.  Method that is 
marked with @Before will be executed before executing every test in the class.

If a JUnit test case class contains lot of tests which all together need a method 
which sets up a precondition  and that needs to be executed before executing the 
Test Case class then we can utilise “@BeforeClass” annotation.

12. What are the different Parameters for @Test 
annotation? 

Parameters are keywords that modify the annotation’s function.

13. Can we run group of test cases using TestNG?

Test cases in group in Selenium using TestNG will be executed with the below options.

 If you want to execute the test cases based on one of the group like regression test or smoke test

 @Test(groups = {"regressiontest", "smoketest"})

14. Differences between Selenium web driver,
IDE and RC?

15. How to highlight an object like qtp/uft does
through selenium and java?

public void highlightElement(WebDriver driver, WebElement element) {

for (int i = 0; i < 2; i++)

{

JavascriptExecutorjs = (JavascriptExecutor) driver;

js.executeScript("arguments[0].setAttribute('style', arguments[1]);", element, "color: yellow; border: 2px solid yellow;");

js.executeScript("arguments[0].setAttribute('style', arguments[1]);", element, "");

}}

Call the highlightElement method and pass webdriver and WebElement which you want to highlight as arguments.

16. What are the different assertions in SIDE?

Assertions are like Accessors, but they verify that the state of the application conforms to what is expected. Examples include "make sure the page title is X" and "verify that this checkbox is checked".

All Selenium Assertions can be used in 3 modes: "assert", "verify", and "waitFor".

 For example, you can "assertText", "verifyText" and "waitForText". When an "assert" fails, the test is aborted. When a "verify" fails, the test will continue execution, logging the failure. This allows a single "assert" to ensure that the application is on the correct page, followed by a bunch of "verify" assertions to test form field values, labels, etc.

"waitFor" commands wait for some condition to become true (which can be useful for testing Ajax applications). They will succeed immediately if the condition is already true. However, they will fail and halt the test if the condition does not become true within the current timeout setting (see the setTimeout action below).

17. How to store a value which is text box using
web driver?

driver.findElement(By.id("your Textbox")).sendKeys("your keyword");

18. How to handle alerts and confirmation boxes.

Confirmation boxes and Alerts are handled in same way in selenium.

var alert = driver.switchTo().alert();

alert.dismiss();  //Click Cancel or Close window operation

alert.accept();   //Click OK

Handle Confirmation boxes via JavaScript,

driver.executeScript("window.confirm = function(message){return true;};");

19. How to mouse hover on an element?

Actions action = new Actions(webdriver);

WebElement we = webdriver.findElement(By.xpath("html/body/div[13]/ul/li[4]/a"));

action.moveToElement(we).moveToElement(webdriver.findElement(By.xpath("/expression-here"))).click().build().perform();http://akhilreddyonlineseleniumtrainings.blogspot.in/2015/09/selenium-realtime-interview-questions.html

20. How to switch between the windows?

private void handlingMultipleWindows(String windowTitle) {

            Set<String> windows = driver.getWindowHandles();

            for (String window : windows) {

                driver.switchTo().window(window);

                if (driver.getTitle().contains(windowTitle)) {   return;   }     }     }

21. How to switch between frames?

WebDriver's driver.switchTo().frame() method takes one of the three possible arguments:

         A number.

Select a frame by its (zero-based) index. That is, if a page has three frames, the first frame would be at index "0", the second at index "1" and the third at index "2". Once the frame has been selected, all subsequent calls on the WebDriver interface are made to that frame.

         A name or ID.

Select a frame by its name or ID. Frames located by matching name attributes are always given precedence over those matched by ID.

         A previously found WebElement.

Select a frame using its previously located WebElement.

Get the frame by it's id/name or locate it by driver.findElement() and you'll be good.

22. What is actions class in web driver?

Actions class with web Driver help is Sliding element, Resizing an Element, Drag & Drop,

hovering a mouse, especially in a case when dealing with mouse over menus.

Dragging & Dropping an Element:

importorg.openqa.selenium.By;

importorg.openqa.selenium.WebDriver;

importorg.openqa.selenium.WebElement;

importorg.openqa.selenium.firefox.FirefoxDriver;

importorg.openqa.selenium.interactions.Actions;

public class testDragandDrop {

  public static void main(String[] args) throws InterruptedException {

   WebDriver driver = new FirefoxDriver();

  driver.get("http://jqueryui.com/resources/demos/droppable/default.html"); 

  WebElementdraggable = driver.findElement(By.xpath("//*[@id='draggable']"));

  WebElement droppable = driver.findElement(By.xpath("//*[@id='droppable']"));   

  Actions action = new Actions(driver); 

action.dragAndDrop(draggable, droppable).perform();

  }

}

Sliding an Element:

importorg.openqa.selenium.By;

importorg.openqa.selenium.WebDriver;

importorg.openqa.selenium.WebElement;

importorg.openqa.selenium.firefox.FirefoxDriver;

importorg.openqa.selenium.interactions.Actions;

public class testSlider {

  /**

  * @paramargs

  * @throws InterruptedException

  */

 public static void main(String[] args) throws InterruptedException {

   WebDriver driver = new FirefoxDriver();

  driver.get("http://jqueryui.com/resources/demos/slider/default.html"); 

  WebElement slider = driver.findElement(By.xpath("//*[@id='slider']/a")); 

  Actions action = new Actions(driver);

  Thread.sleep(3000);

  action.dragAndDropBy(slider, 90, 0).perform();

  }

}

Re-sizing an Element:

importorg.openqa.selenium.By;

importorg.openqa.selenium.WebDriver;

importorg.openqa.selenium.WebElement;

importorg.openqa.selenium.firefox.FirefoxDriver;

importorg.openqa.selenium.interactions.Actions;

public class testResizable {

  public static void main(String[] args) throws InterruptedException {

   WebDriver driver = new FirefoxDriver();

  driver.get("http://jqueryui.com/resources/demos/resizable/default.html");

    WebElement resize = driver.findElement(By.xpath("//*[@id='resizable']/div[3]")); 

  Actions action = new Actions(driver);

  action.dragAndDropBy(resize, 400, 200).perform();

    }

}

23. Difference between the selenium1.0 and
selenium 2.0?

Selenium 1 = Selenium Remote Control.

Selenium 2 = Selenium Web driver, which combines elements of Selenium 1 and Web driver.

24. Difference between find element () and
findelements ()?

findElement() :

Find the first element within the current page using the given "locating mechanism".

Returns a single WebElement.

findElements() :

Find all elements within the current page using the given "locating mechanism".

Returns List of Web Elements.

25. How to take the screen shots in seelnium2.0?

// store screenshots
public static void captureScreenShot(String filePath) {
File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
   try {
FileUtils.copyFile(scrFile, new File(filePath));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();

}
  }

26. What is the default time for selenium Ide and
webdriver?

Default timeout in selenium ide is 30 seconds.

27. Write down scenarios which we can't automate?

Barcode Reader, Captcha etc.

28. In TestNG I have some test's  Test1-Test2-
Test3-Test4-Test5I want to run my execution
order is Test5-Test1-Test3-Test2-Test4.How
do you set the execution order can you explain
for that?

·         Use priority parameter in @test annotation or TestNG annotations.

29. Differences between jxl and ApachePOI.

·         jxl does not support  XLSX files

·         jxl exerts less load on memory as compared to ApachePOI

·         jxl doesn't support rich text formatting while ApachePOI does.

·         jxl has not been maintained properly while ApachePOI is more up to date.

·         Sample code on Apache POI is easily available as compare to jxl.

30. How to ZIP files in Selenium with an Example?

// Sample Function to make zip of reports
public static void zip(String filepath){
try
{
File inputFolder=new File('Mention file path her");
File outputFolder=new File("Reports.zip");
ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(outputFolder)));
BufferedInputStream in = null;
byte[] data  = new byte[1000];
String files[] = inputFolder.list();
for (int j=0; j<files.length; i++)
{
in = new BufferedInputStream(new FileInputStream
(inputFolder.getPath() + "/" + files[j]), 1000);
out.putNextEntry(new ZipEntry(files[j]));
inttotalcount;
while((totalcount= in.read(data,0,1000)) != -1)
{
out.write(data, 0, totalcount);
}
out.closeEntry();
  }
  out.flush();
  out.close();
}
  catch(Exception e)
  {
 e.printStackTrace();
           return "Fail - " + e.getMessage();
  }
 }
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31. What is default port no?

4444

32. If Default port no is busy how to change port no?

We can use any port number which is valid.. First create an object to remote control configuration. 
Use 'setPort' method and provide valid port number(4545,5555,5655, etc).. There after attach this 
remote control configuration object to selenium server..i.e

RemoteControlConfiguration r= new RemoteControlConfiguration();

r.setPort(4567);

SeleniumServer s= new SeleniumServer(r);

33. Does Selenium support https protocols?

Yes

34. Majorly asked test scenario with framework in
Interviews?

Majorly asked are:

·         Login for Gmail scenario

·         Goggle search and finding no of results

·         Downloading a file and save it

·         Checking mails and deleting them

·         Do shopping in flipkart.com 
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35. Selenium support mobile applications?

No, it is browser automation tool, it only automates Websites opening in mobile browser, and mobile APPs

 can't be automated.

36. What is wraps Driver?

For casting selenium instance to selenium2 (webdriver).wraps driver is used.

For more details.

37. Can you explain Junit Annotation? If there are
1000 test cases. 500 test cases are executed. How
 will you execute the rest of the test cases by using annotation?"

The annotations generated with JUnit 4 tests in Selenium are:

 1. @Before public void method() - Will perform the method() before each test. This method
 can prepare the  test

 2. @Test public void method() - Annotation @Test identifies that this method is a test 
method.environment,e.g. read input data, initialize the class)

 3. @After public void method() - Test method must start with test@Before - this annotation
 is used for  executing a method before

38. Difference between assert and verify in selenium
 web driver.

·         When an “assert” fails, the test will be aborted. Assert is best used when the
 check value has to pass for  the test to be able to continue to run log in.

·         Where if a “verify” fails, the test will continue executing and logging the failure.
Verify is best used to  checknon critical things. Like the presence of a
 headline element.

39. "I want to find the location of ""b"" in the below
 code, how can I find out without using xpath, name,
 id, csslocator, index.<div>

<Button>a</button>

<Button>b</button>

<Button>c</button>

</div>http://akhilreddyonlineseleniumtrainings.blogspot.in/2015/09/selenium-realtime-interview-questions.html

          driver.findElement(By.xpath("//*[contains(text(),'b')]")).click(); or

        //div/button[contains(text(),'b']

·      

40. How to do Applet testing using selenium? 

// selenium setup

selenium =newDefaultJavaSelenium("localhost",4444,browserString,url);

selenium.start();

selenium.open(url);



// get the appletfixure to control fest JAppletFixture

AppletFixture dialog =selenium.applet(LIST_APPLET_ID)



// fest similar API for autmation testing

dialog.comboBox("domain").select("Users");

dialog.textBox("username").enterText("alex.ruiz");

dialog.button("ok").click();

41.  Name 5 different exceptions you had in
selenium web driver and mention what instance
you got it and how do you resolve it?

·         WebDriverException

·         NoAlertPresentException

·         NoSuchWindowException

·         NoSuchElementException

·         TimeoutException
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42. How do you manage the code versions in
your project?

·         Using SVN or other versioning tools 

43. Latest version of Firefox and selenium in
market and the version on which you are testing
 which you are testing.

·         FF Latest version till Dec,2013 for windows7,64 bit :26.0.I use FF 25.0.1 (ur ans. may differ)

·         Selenium web driver latest version till dec,2013- 2.39.0 I use selenium 2.37 see latest at

44. How to know all the methods supported in
web driver 

and its syntax. 

·         In Org.openqa.selenium package, web driver interface has all the main methods that can

be used in Selenium Web driver

·        

45. How do you create html test report from
your test script? 

• I would see below 3 ways:

• Junit: with the help of ANT.

• TestNG: using inbuilt default.html to get the HTML report. Also XLST reports from ANT,

Selenium, TestNG combination.

• Using our own customized reports using XSL jar for converting XML content to HTML.

46. List the browsers, OS supported by the Selenium

Windows Linux Mac

IE Y NA NA

FF Y YY

Safari Y N Y

Opera Y YY

Chrome Y YY

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47. Can you explain Selenium Mobile Automation?

importjunit.framework.TestCase;



importorg.openqa.selenium.By;

importorg.openqa.selenium.WebElement;

importorg.openqa.selenium.android.AndroidDriver;



publicclassOneTestextendsTestCase{



  publicvoidtestGoogle()throwsException{

    WebDriver driver =newAndroidDriver();

    

    // 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();

    

    // Check the title of the page

    System.out.println("Page title is: "+driver.getTitle());

    driver.quit();

  }

}

48. What mobile devices it may Support?

Selenium Web driver supports all the mobile devices operating on Android, IOS operating Systems

·         Android – for phones and tablets (devices & emulators)

·         iOS for phones (devices & emulators) and for tablets (devices & emulators)

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49. What is the difference between single and
 double slash

 inXpath?

/

1.It starts selection from the document node

2. It Allows you to create 'absolute' path expressions

3. e.g “/html/body/p” matches all the paragraph elements

 //

1. It starts selection matching anywhere in the document

2. It Allows you to create 'relative' path expressions

3. e.g“//p” matches all the paragraph elements

50. What are the test types supported by Selenium?

Selenium supports UI and functional testing. As well it can support performance testing

for reasonable load using selenium grid.

. In what all case we have to go for
“JavaScript executor”.

Consider FB main page after you login. When u scrolls down, the updates get loaded. To
 handle this activity, there is no selenium command. So you can go for javascript to set 
the scroll down value like driver.executeScript("window.scrollBy(0,200)", "");