Selenium Super 30 Interview Questions - 3

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21. How would you make sure that a particular feature is enable or disabled in the browser launched or how would launch a browser with some specific properties.

FirefoxProfile profile = new FirefoxProfile(); profile.setPreference("browser.startup.homepage", "http://www.google.com"); driver = new FirefoxDriver(profile);

22. What are the limitations with IE browser? What are the things that have to be done before actually using the IE browser for the automation?

·        If you see issue something like 'Unexpected error launching Internet Explorer' below, you have to set 'Enable protected mode' option in all levels with same value. ·        2. Make sure that the IE browser zoom level is set to 100% so that the native mouse events can be set to the correct coordinates. ·        3. It may be silly one, But make sure you provide correct path when setting the property of Internet explorer driver.

23. How would you locate a Frame without ID or Name?

WebElement frame = driver.findElement(By.xpath(<your frame xpath>)); driver.switchTo().frame(frame); driver.switchTo().frame(driver.findElement(By.cssSelector("iframe[title='Fill Quote']")))

24. Is it possible to migrate from selenium RC to Webdriver. Can I execute the scripts written in RC using webdriver. If yes how can we achieve the same?

Yes, it’s possible to migrate. The first step when starting the migration is to change how you obtain your instance of Selenium. When using Selenium RC, this is done like so: Java Code: Selenium selenium = new DefaultSelenium(     "localhost", 4444, "*firefox", "http://www.yoursite.com"); selenium.start(); This should be replaced like so: Java Code: WebDriver driver = new FirefoxDriver(); Selenium selenium = new WebDriverBackedSelenium(driver, "http://www.yoursite.com"); Next Steps Once your tests execute without errors, the next stage is to migrate the actual test code to use the WebDriver APIs. Depending on how well abstracted your code is, this might be a short process or a long one. In either case, the approach is the same and can be summed up simply: modify code to use the new API when you come to edit it. If you need to extract the underlying WebDriver implementation from the Selenium instance, you can simply cast it to WrapsDriver Java Code: WebDriver driver = ((WrapsDriver) selenium).getWrappedDriver(); This allows you to continue passing the Selenium instance around as normal, but to unwrap the WebDriver instance as required. At some point, you’re codebase will mostly be using the newer APIs. At this point, you can flip the relationship, using WebDriver throughout and instantiating a Selenium instance on demand: Java Code: Selenium selenium = new WebDriverBackedSelenium(driver, baseUrl);

25. How to check if a text is highlighted on the page?

String color = driver.findElement(By.xpath("//a[text()='Shop']")).getCssValue("color"); String backcolor = driver.findElement(By.xpath("//a[text()='Shop']")).getCssValue("background-color"); System.out.println(color); System.out.println(backcolor);

26. WebDriver is a class or interface? If interface name few of the methods which are part of the webdriver interface. Name the classes which have done the implementation from this interface.

WebDriver is Interface. Methods: close(), findelememt(By by), findelemetns(By by), quit(), switchto() etc.

27. What is Page object Model? What is page factory? How would you initialize the webelements in Page Object Model?

·        Page Object Model is a design pattern to create Object Repository for web UI elements. ·        Under this model, for each web page in the application there should be corresponding page class. ·        This Page class will find the WebElements of that web page and also contains Page methods which perform operations on those WebElements. Advantages of POM ·        Page Object Patten says operations and flows in the UI should be separated from verification. This concept makes our code cleaner and easy to understand. ·        Second benefit is the object repository is independent of testcases, so we can use the same object repository for a different purpose with different tools. For example, we can integrate POM with TestNG/JUnit for functional testing and at the same time with JBehave/Cucumber for acceptance testing. ·        Code becomes less and optimized because of the reusable page methods in the POM classes. PageFactory ·        The PageFactory Class is an extension to the Page Object design pattern. It is used to initialize the elements of the Page Object or instantiate the Page Objects itself. Annotations for elements can also be created (and recommended) as the describing properties may not always be descriptive enough to tell one object from the other. ·        It is used to initialize elements of a Page class without having to use ‘FindElement’ or ‘FindElements’. PageFactory.initElements(driver, PageName.class);

28. How would you count the number of rows of a given table?

·        //To locate table. WebElement mytable = driver.findElement(By.xpath(".//*[@id='SomeID']/div[1]/table/tbody")); ·        //To locate rows of table. List<WebElement> rows_table = mytable.findElements(By.tagName("tr")); ·        //To calculate no of rows In table. int rows_count = rows_table.size();

29. Write the sequence of steps to delete a particular row (with user name = "xyz") in a table with multiple pages. One page contains max of 10 rows.

Steps should include: ·        Locate the table ·        Locate the rows ·        Find a row with a user name “xyz” ·        If the user name is not present in the first page it should navigate to the next page ·        Repeat first 3 steps again till the row with username = “xyz” is found. ·        Delete the row.

30. Why do we need a Maven? What is the purpose of creating our own framework when selenium has already provided the APIs? Why do we need a framework?

Maven: Maven’s primary goal is to allow a developer to comprehend the complete state of a development effort in the shortest period of time. In order to attain this goal there are several areas of concern that Maven attempts to deal with: ·        Making the build process easy ·        Providing a uniform build system ·        Providing quality project information ·        Providing guidelines for best practices development ·        Allowing transparent migration to new features As part of the Automation framework it’s easy to add/update tools/APIs according to the latest versions available. We just need to configure the POM and build it. All the required jars will be added to the framework automatically. Framework: Automation framework is a way to organize your code in much meaningful manner, so that any person who is luckily working with you should understand what each file has and what is the purpose of adding the file. A TEST Automation Framework is a set of guidelines like coding standards, test-data handling, object repository treatment etc., which when followed during automation scripting produce beneficial outcomes like increase code re-usability, higher portability, reduced script maintenance cost etc.

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