SELENIUM REALTIME INTERVIEW QUESTIONS PART 2 (TOP 100)

Q.1.What is Selenium?

Selenium is software which contains some set of programs

Selenium components:

Selenium IDE:  it is set of programs + a user interface from where the user can interact with that set of programs.

Advantages: 

v  Free software

v  Easy to install

v  Its main feature is record and playback

v   Scripts recorded in IDE can be converted into other language like Java, C#, Python and Ruby

v   It is not only a time saver but also an excellent way of Learning scripts syntax

v  We can insert comments, commands

Disadvantages:

Main disadvantage of IDE is that it runs only in Firefox

  Browser

v  We can’t write the script manually

v  Cannot upload files

v  It does not directly support loops and conditions

v  Reading from external files like .txt, .xls is not possible

v  We can perform very limited testing

Selenium RC (remote control): it is a set of programs to perform automation testing, to interact with those programs we need to configure them in any user interface. Generally people use eclipse as it is a powerful editor for writing java programs.

Note: after selenium rc they have made selenium web driver as more powerful. Selenium web driver is providing more facilities for automation testing when compare to RC people started using web driver and slowly RC is getting deprecated.

 

Disadvantages:

v  There are very limited features in RC when working with Ajax based UI elements

v  we need to start, stop the server manually

v  Controlling multiple windows is somewhat difficult

Selenium web driver: it is a set of powerful programs to perform automation testing, to interact with those programs we need to configure them in any user interface.

       Generally people use eclipse for configuring the web driver programs into eclipse

Eclipse is a powerful editor for writing the java programs.

 

Advantages;

1)   Support for iPhone and Android testing

2)   Implementation of listeners - a much awaited feature

3)    Better features for Ajax testing.

4)   You can easily simulate clicking on front and back button of browser.

5)   You can extract objects in bulk like QTP. For ex - extract all links of page. With RC this was a big hastle

6)   Unlike RC you don’t have to start a server in web driver.

7)   You can simulate movement of a mouse using selenium.

8)   ) Tabs and pops are more or less the same. RC can also handle and Web driver can also handle.

9)   You can find coordinates of any object using Web driver.

10)                You have classes in Web driver which help you to simulate key press events of keyboard.

11)                Keyword driven framework is very easy to build in web driver.

Selenium grid:  it is a set of programs used for executing the tests parallel on multiple machines in order to increase the performance of execution.

SELENIUM GRID Advantages

v  Remote Execution of the selenium tests can be done using Selenium Grid without actually copying your test code to remote system.

v  Selenium Grid can be used to save time by executing

          Independent test cases in parallel.

v  Load Testing can be done if we register a lot of remote control to a single hub and execute test case in parallel to simulate multiple transactions at a single time period.

Q2. What are the main components of Selenium testing tools?
       Selenium IDE, Selenium RC and Selenium Grid

Q3. What is Selenium IDE?
        Selenium IDE is for building Selenium test cases. It operates as a Mozilla Firefox add on and provides an easy to use interface for developing and running individual test cases or entire test suites. Selenium-IDE has a recording feature, which will keep account of user actions as they are
performed and store them as a reusable script to play back.

Q4. What is the use of context menu in Selenium IDE?
It allows the user to pick from a list of assertions and verifications for the selected location.

Q5. Can tests recorded using Selenium IDE be run in other browsers?
       Yes. Although Selenium IDE is a Firefox add on, however, tests created in it can also be run in other browsers by using Selenium RC (Selenium Remote Control) and specifying the name of the test suite in command line.

Q6. What are the advantage and features of Selenium IDE?
1. Intelligent field selection will use IDs, names, or XPath as needed
2. It is a record & playback tool and the script format can be written in various   languages including C#, Java, PERL, Python, PHP, HTML
3. Auto complete for all common Selenium commands
4. Debug and set breakpoints
5. Option to automatically assert the title of every page
6. Support for Selenium user-extensions.js file

Q7. What are the disadvantage of Selenium IDE tool?
      1. Selenium IDE tool can only be used in Mozilla Firefox browser.
      2. It is not playing multiple windows when we record it.

Q8. What is Selenium RC (Remote Control)?
       Selenium RC allows the test automation expert to use a programming language for maximum flexibility and extensibility in developing test logic. For example, if the application under test returns a result set and the automated test program needs to run tests on each element in the result set, the iteration / loop support of programming language’s can be used to iterate through the result set, calling Selenium commands to run tests on each item.
Selenium RC provides an API and library for each of its supported languages. This ability to use Selenium RC with a high level programming language to develop test cases also allows the automated testing to be integrated with the project’s automated build environment.

Q9. What is Selenium Grid?
       Selenium Grid in the selenium testing suit allows the Selenium RC solution to scale for test suites that must be run in multiple environments. Selenium Grid can be used to run multiple instances of Selenium RC on various operating system and browser configurations.

Q10. How Selenium Grid works?
     Selenium Grid sent the tests to the hub. Then tests are redirected to an available Selenium RC, which launch the browser and run the test. Thus, it allows for running tests in parallel with the entire test suite.

Q 11. What you say about the flexibility of Selenium test suite?
     Selenium testing suite is highly flexible. There are multiple ways to add functionality to Selenium framework to customize test automation. As compared to other test automation tools, it is Selenium’s strongest characteristic. Selenium Remote Control support for multiple programming and
scripting languages allows the test automation engineer to build any logic they need into their automated testing and to use a preferred programming or scripting language of one’s choice. Also, the Selenium testing suite is an open source project where code can be modified and enhancements can be submitted for contribution.

Q12. What test can Selenium do?
       Selenium is basically used for the functional testing of web based applications. It can be used for testing in the continuous integration environment. It is also useful for agile testing

Q13. What is the cost of Selenium test suite?
        Selenium test suite a set of open source software tool, it is free of cost.

Q14. What browsers are supported by Selenium Remote Control?

         The test automation expert can use Firefox, IE 7/8, Safari and Opera browsers to run tests in Selenium Remote Control.

Q15. What programming languages can you use in Selenium RC?
         C#, Java, Perl, PHP, Python, Ruby

Q16. What are the advantages and disadvantages of using Selenium as testing tool?

Advantages: Free, Simple and powerful DOM (document object model) level testing, can be used for continuous integration; great fit with Agile projects.
Disadvantages: Tricky setup; dreary errors diagnosis; cannot test client server applications.

Q17. What is difference between QTP and Selenium?
         Only web applications can be testing using Selenium testing suite. However, QTP can be used for testing client server applications. Selenium supports following web browsers: Internet Explorer, Firefox, Safari, Opera or Konqueror on Windows, Mac OS X and Linux. However, QTP is limited to
Internet Explorer on Windows.
QTP uses scripting language implemented on top of VB Script. However, Selenium test suite has the flexibility to use many languages like Java, .Net, Perl, PHP, Python, and Ruby.

Q18. What is difference between Borland Silk test and Selenium?
Ans. Selenium is completely free test automation tool, while Silk Test is not. Only web applications can be testing using Selenium testing suite. However, Silk Test can be used for testing client server applications. Selenium supports following web browsers: Internet Explorer, Firefox, Safari, Opera or Konqueror on Windows, Mac OS X and Linux. However, Silk Test is limited to Internet Explorer and Firefox.

Selenium is a  software which contains some set of programmes

Q.19.How is Selenium different from commercial browser automation tools?

Selenium is a library which is available in a gamut of languages i.e. java, C#, pearl, python, ruby, php etc while most commercial tools are limited in their capabilities of being able to use just one language. More over many of those tools have their own proprietary language which is of little use outside the domain of those tools. Most commercial tools focus on record and replay while Selenium emphasis on using Selenium IDE (Selenium record and replay) tool only to get acquainted with Selenium working and then move on to more mature Selenium libraries like Remote control (Selenium 1.0) and Web Driver (Selenium 2.0).Though most commercial tools have built in capabilities of test reporting, error recovery mechanisms and Selenium does not provide any such features by default. But given the rich set of languages available with Selenium it very easy to emulate such features.

Q.20.What are the set of tools available with Selenium?

        Selenium has four set of tools – Selenium IDE, Selenium 1.0 (Selenium RC), Selenium 2.0 (WebDriver) and Selenium Grid. Selenium Core is another tool but since it is available as part of Selenium IDE as well as Selenium 1.0, it is not used in isolation. 

http://akhilreddytechnologies.blogspot.in/2015/09/top-50-selenium-realtime-interview.html

Q.21.Which Selenium Tool should I use?

    It entirely boils down to where you stand today in terms of using Selenium. If you are entirely new to Selenium then you should begin with Selenium IDE to learn Selenium location strategies and then move to Selenium 2 as it is the most stable Selenium library and future of Selenium. Use Selenium Grid when you want to distribute your test across multiple devices. If you are already using Selenium 1.0 than you should begin to migrate your test scripts to Selenium 2.0

Q.22.What is Selenium IDE?

       Selenium IDE is a Firefox plug-in which is (by and large) used to record and replay test is Firefox browser. Selenium IDE can be used only with Firefox browser.

Q.23.Which language is used in Selenium IDE?

       Selenium IDE uses html sort of language called Selenese. Though other languages (java, c#, php etc) cannot be used with Selenium IDE, Selenium IDE lets you convert test in these languages so that they could be used with Selenium 1.0 or Selenium 2.0

Q.24.What is Selenium 1.0?

       Selenium 1.0 or Selenium Remote Control (popularly known as Selenium RC) is library available in wide variety of languages. The primary reason of advent of Selenium RC was incapability of Selenium IDE to execute tests in browser other than Selenium IDE and the programmatically limitations of language Selenese used in Selenium IDE.

Q.25. What is Selenium 2.0?

        Selenium 2.0 also known as Web Driver is the latest offering of Selenium. It provides · better API than Selenium 1.0

·Does not suffer from java script security restriction which Selenium 1.0 does · supports more UI complicated UI operations like drag and drop

Q.26.What are the element locators available with Selenium which could be used to locate elements on web page?

There are mainly 4 locators used with Selenium –

·html id

·html name

·XPath locator and

·Css locators

Q.27.What is Selenium Grid?

Selenium grid lets you distribute your tests on multiple machines and all of them at the same time. Hence you can execute test on IE on Windows and Safari on Mac machine using the same test script (well, almost always). This greatly helps in reducing the time of test execution and provides quick feedback to stack holders.

Q.28.What are two modes of views in Selenium IDE?

       Selenium IDE can be opened either in side bar (View > Side bar > Selenium IDE) or as a pop up window (Tools > Selenium IDE). While using Selenium IDE in browser side bar it cannot record user operations in a pop up window opened by application.

Q.29.Can I control the speed and pause test execution in Selenium IDE?

      Selenium IDE provides a slider with Slow and Fast pointers to control the speed of execution.

Q.30.Where do I see the results of Test Execution in Selenium IDE?

       Result of test execution can be viewed in log window in Selenium IDE

Q.31.Where do I see the description of commands used in Selenium IDE?

       Commands of description can be seen in Reference section

Q.32.Can I build test suite using Selenium IDE?

Yes, you can first record individual test cases and then group all of them in a test suite. Following this entire test suite could be executed instead of executing individual tests.

Q.33.What verification points are available with Selenium?

There are largely three type of verification points available with Selenium –

· Check for page title

· Check for certain text

 · Check for certain element (text box, drop down, table etc)

Q.34.I see two types of check with Selenium – verification and assertion, what’s the difference between tow?

 · A verification check lets test execution continue even in the wake of failure with check, while assertion stops the test execution. Consider an example of checking text on page, you may like to use verification point and let test execution continue even if text is not present. But for a login page, you would like to add assertion for presence of text box login as it does not make sense continuing with test execution if login text box is not present.

Q.35.I don’t see check points added to my tests while using Selenium IDEL, how do I get them added to my tests?

      You need to use context menu to add check points to your Selenium IDE tests

Q.36.How do I edit tests in Selenium IDE?

       There are two ways to edit tests in Selenium IDE; one is the table view while other looking into the source code of recorded commands

Q.37.What is syntax of command used in Selenium?

There are three entities associated with a command –

· Name of Command

· Element Locator (also known as Target) · Value (required when using echo, wait etc)

Q.38.There are tons of Selenium Command, am I going to use all of them

     This entirely boils down to operations you are carrying out with Selenium. Though you would definitely be using following Selenium Commands more often –

· Open: opens a web page. ·click/clickAndWait: click on an element and waits for a new page to load. ·Select: Selects a value from a drop down value. ·verifyTitle/assertTitle: verifies/asserts page title. ·verify/assertElementPresent: verifies/asserts presence of element, in the page. ·verify/assertTextPresent verifies/asserts expected text is somewhere on the page.

Q.39. How do I use html id and name while using Selenium IDE

         Html id and name can be used as it is in selenium IDE. For example Google search box has name – “q” and id – “list-b” and they can be used as target in selenium IDE

Q.40.What is XPath? When would I have to use XPath in Selenium IDE?

        XPath is a way to navigate in xml document and this can be used to identify elements in a web page. You may have to use XPath when there is no name/id associated with element on page or only partial part of name/ide is constant.

Direct child is denoted with - /

Relative child is denoted with - //

Id, class, names can also be used with XPath –

· //input[@name=’q’] · //input[@id=’lst-ib’] · //input[@class=’ lst’]

If only part of id/name/class is constant than “contains” can be used as –

· //input[contains(@id,'lst-ib')]

Q.41.What is CSS location strategy in Selenium?

      CSS location strategy can be used with Selenium to locate elements, it works using cascade style sheet location methods in which - Direct child is denoted with – (a space)

Relative child is denoted with - >

Id, class, names can also be used with XPath –

·css=input[name=’q’] ·css=input[id=’lst-ib’] or input#lst-ib

·css=input[class=’ lst’] or input.lst

If only part of id/name/class is constant than “contains” can be used as –

·css=input[id*=' lst-ib ')]

Element location strategy using inner text ·css = a:contains(‘log out’) 

http://akhilreddytechnologies.blogspot.in/2015/09/top-50-selenium-realtime-interview.html

Q.42.There is id, name, XPath, CSS locator, which one should I use?

If there are constant name/id available than they should be used instead of XPath and CSS locators. If not then css locators should be given preference as their evaluation is faster than XPath in most modern browsers.

Q.43. I want to generate random numbers, dates as my test data, how do I do this in Selenium IDE?

      This can be achieved by executing java script in Selenium. Java script can be executed using following syntax –

type

css=input#s

javascript{Math.random()}

And for date –

type

css=input#s

javascript{new Date()}

Q.44.Can I store result of an evaluation and use it later in my test?

     You can use “store” command to achieve this. You can save result of an evaluation in a variable and use it later in your Selenium IDE script. For example we can store value from a text box as following, and later use it to type it in another text box –

storeText

css=input#s

var1

type

css=input#d

${var1}

Q.45.I have stored result of an evaluation; can I print it in IDE to check its value?

      You can use echo command as following to check the stored value in Selenium IDE –

storeText

css=input#s

var1

echo

${var1}

Q.46.Can I handle java script alert using Selenium?

     You could use verify/assertAlert to check presence of alert on page. Since selenium cannot click on “Ok” button on js alert window, the alert itself does not appear on page when this check is carried out.

Q.47.Selenium has recorded my test using XPath, how do I change them to css locator?

    You can use drop down available next to Find in Selenium to change element locator used by Selenium 

Q.48.I have written my own element locator, how do I test it?  

      You can use Find button of Selenium IDE to test your locator. Once you click on it, you would see element being highlighted on screen provided your element locator is right Else one error message would be displayed in log window.

Q.49.I have written one js extension; can I plug it in Selenium and use it?

      You could specify you js extension in “Options” window of Selenium IDE –

Q.50. How do I convert my Selenium IDE tests from Selenese to another language?

      You could use Format option of Selenium IDE to convert tests in another programming language

Q.51.I have converted my Selenium IDE tests to java but I am not able to execute themL, execution options as well as Table tab of Selenium IDE is disabledLL

     This is because Selenium IDE does not support execution of test in any other language than Selenese (language of Selenium IDE). You can convert Selenium IDE in a language of your choice and then use Selenium 1.0 to execute these tests in that language.

Q.52.I want to use only Selenese as my test script language but still want to execute tests in other browsers, how do I do that?

      You can execute you Selenese test in another browser by specifying the “-html Suite” followed by path of your Selenese suite while starting the Selenium Server. Selenium Server would be covered in details in question about  Selenium RC.

Q.53.I have added one command in middle of list of commands, how do I test only this new command?

     You can double click on newly added command and Selenium IDE would execute only that command in browser.

Q.54.Can I make Selenium IDE tests begin test execution from a certain command and not from the very first command?

      You could set a command as “start” command from context menu. When a command is set as start command then a small green symbol appears before command. Same context menu can be used to toggle this option.

http://akhilreddytechnologies.blogspot.in/2015/09/top-50-selenium-realtime-interview.html

Q.55.Are there other tools available outside Selenium IDE to help me tests my element locators

      You could XPath checker - https://addons.mozilla.org/en-US/firefox/addon/xpath-checker/ to test you XPath locators and Firefinder (a firebug add on) to test you css locators –

https://addons.mozilla.org/en-US/firefox/addon/firefinder-for-firebug/

Firefinder can also be used to test XPath locators.

Q.56.What is upcoming advancement in Selenium IDE?

    The latest advancement in Selenium IDE would be to have capabilities of converting Selenium IDE tests in Webdriver (Selenium 2.0) options. This would help generating quick and dirty tests for Selenium 2.0

Q.57.How can I use looping option (flow control) is Selenium IDE

       Selenese does not provide support for looping, but there is extension which could be used to achieve same. This extension can be download from here - http://51elliot.blogspot.com/2008/02/selenium-ide-goto.html

This extension can be added under “Selenium IDE Extension” section to use loop feature in Selenium IDE.

Q.58.Can I use screen coordinate while using click command? I want to click at specific part of my element.

       You would need to use clickAT command to achieve. clickAt command accepts element locator and x, y coordinates as arguments –

clickAt(locator, coordString)

Q.59.How do I verify presence of drop down options using Selenium?

Use assertSelectOptions as following to check options in a drop down list –

assertSelectOptions

Q.60.Can I get data from a specific html table cell using Selenium IDE?

    Use storeTable command to get data from a specific cell in an html table, following example

store text from cell 0,4 from an html table –

storeTable

css=#tableId.0.4

textFromCell

Q.61.I want to make Selenium IDE record and display css locator followed by other locators, is it possible to give high priority to css locator in Selenium IDE?

    You can change default behavior of Selenium IDE > element locator preference by crating js file with following–

LocatorBuilders.order = ['css:name', 'css:id', 'id', 'link', 'name',

'xpath:attributes'];

And add this file under “Selenium IDE Extension” under Selenium Options.

Q.62.My application has dynamic alerts which don’t always appear, how do I handle them?

If you want to simulate clicking “ok “ on alert than use – chooseOkOnNextConfirmation and if you want to simulate clicking “cancel” on alert than use http://draft.blogger.com/blogger.g?blogID=4608630209994205502chooseCancelOnNextConfir

mation ( )

Q.63.Can I right click on a locator?

     You can use command - contextMenu( locator) to simulate right click on an element in web page.

Q.64.How do I capture screen shot of page using Selenium IDE?

Use command – captureEntirePageScreenshot to take screen shot of page.

Q.65.I want to pause my test execution after certain command.

    Use pause command which takes time in milliseconds and would pause test execution for specified time – pause ( waitTime )

Q.66.I used open command to launch my page, but I encountered time out errorL

    This happens because open commands waits for only 30 seconds for page to load. If you application takes more than 30 sec then you can use

“http://draft.blogger.com/blogger.g?blogID=4608630209994205502setTimeout ( timeout )” to make selenium IDE wait for specified time, before proceeding with test execution.

Q.67.What’s the difference between type and typeKeys commands?

    type command simulates enter operations at one go while typeKeys simulates keystroke key by key. typeKeys could be used when typing data in text box which bring options (like Google suggestion list) because such operation are not usually simulated using type command. Selenium RC (Selenium 1.0) Questions

Q.68.What is Selenium RC (also known as Selenium 1.0)?

     Selenium RC is an offering from SeleniumHQ which tries to overcome following draw backs of Selenium IDE –

· Able to execute tests only with Firefox

· Not able to use full-fledged programming language and being limited to Selenese

Q.69.What are the main components of Selenium RC?

Selenium RC has two primary components –

· Client libraries which let you writes tests in language of your preference i.e. java, C#, perl, php etc

· Selenium sever which acts as a proxy between browser and application under test (aut)

Q.70.Why do I need Selenium Server?

      Selenium uses java script to drives tests on a browser; Selenium injects its own js to the response which is returned from aut. But there is a java script security restriction (same origin policy) which lets you modify html of page using js only if js also originates from the same domain as html. This security restriction is of utmost important but spoils the working of Selenium. This is where Selenium server comes to play an important role. Selenium server stands between aut and browser and injects selenium js to the response received format and then it is delivered to browser. Hence browser believes that entire response was delivered from aut.

Q.71.What is Selenium core? I have never used it!!!

    Selenium core is the core js engine of Selenium which executes tests on browser, but because of same origin policy it needs to be deployed on app server itself, which is not always feasible. Hence Selenium core is not used in isolation. Selenium IDE as well as Selenium RC use Selenium core to drive tests while over coming same origin policy. In case of Selenium IDE tests are run in context of browser hence it is not hindered by same origin policy and with Selenium RC, Selenium Server over comes same origin policy.

Q.72.Where is executable for Selenium RC, how do I install it?

   Installation is a misnomer for Selenium RC. You don’t install Selenium RC you only add client libraries to you project. For example in case of java you add client driver and Selenium server jars in Eclipse or IntelliJ which are java editors.

Q.73.I have downloaded Selenium Server and Client libraries, how do I start Selenium Server?

     To start Selenium Server, you need to navigate to installation directory of Selenium server and execute following command –

Java -jar .jar

This will start Selenium server at port 4444 by default.

Notice that you need to have java version 1.5 or higher available on your system to be able to use

Selenium server.

Q.74.On my machine port 4444 is not freeL . How do Use another port?

     You can specify port while running the selenium server as –

Java -jar .jar –port 5555

Q.75.I am new to programming; can Selenium generate sample code from my Selenese scripts?

    You can first record tests in Selenium IDE and then use format option to convert them in a language of your choice.

Q.76.Can I start Selenium server from my program instead of command line

     If you are using java then you can start Selenium server using SeleniumServer class. For this you need to instantiate SeleniumServer and then call start() method on it.

seleniumServer = new SeleniumServer();

seleniumServer.start();

Q.77. How do I start the browser?

     While using java you need to create instance of DefaultSelenium class and pass it four parameters – selenium = new DefaultSelenium(serverHost, serverPort, browser,

appURL);

selenium.start();

Herein you need to pass,

host where Selenium server is running,

port of Selenium server,

browser where tests are to be executed and

application URL

Q.78.I am not using java to program my tests, do I still have to install java on my system?

   Yes, since Selenium server is written in java you need java to be installed on your system to be able to use it. Even though you might not be using java to program your tests.

Q.79.What are the browsers offering from Selenium?

       Following browsers could be used with Selenium – *firefox

*firefoxproxy

*pifirefox

*chrome

*iexploreproxy

*iexplore

*firefox3

*safariproxy

*googlechrome

*konqueror

*firefox2

*safari

*piiexplore

*firefoxchrome

*opera

*iehta

*custom

Here pi and proxy stand for proxy injection mode of Selenium server

Q.80.During execution of tests I see two browser windows; one my test application another window shows commands being executed. Can I limit it to just one window?

      Yes you can instruct Selenium Server to launch just one window. To do so you must specify – singleWindow while starting the Selenium server as –

Java -jar .jar –singleWindow

Q.81.My tests usually time outL. Can I specify bigger time out?

     This usually happens while using open method with Selenium. One way to overcome this is to usesetTimeOut method in your test script another way is to specify time out while starting

Selenium server as following –

Java -jar .jar –timeout

Q.82.My system is behind corporate network, how do I specify my corporate proxy?

     You can specify your corporate proxy as following while starting Selenium Server – java -jar .jar -Dhttp.proxyHost= -Dhttp.proxyPort= -Dhttp.proxyUser= -Dhttp.proxyPassword=

Q.83.I am switching domains in my test scripts. I move from “yahoo.com” to “google.com” and my tests encounter permission denied errorL

     Changing domains is also a security restriction from java script. To overcome this you should start you Selenium server in proxy injection mode as – java -jar .jar –proxyInjectionMode

Now Selenium server would act as proxy server for all the content going to test application

Q.84.Can I execute my Selenese tests in another browser using Selenium server? I want to use only Selenese script my tests but still want to execute my test in non firefox browsers

     Yes you can. To do so you need to specify following parameters while starting Selenium server – Browser

Test domain

Path to html suite (you Selenese tests) and

Path to result

java -jar <>.jar -htmlSuite

Q.85.Can I log more options during test execution?

     If you want to log browser side option during test execution then you should start Selenium server as following –

java -jar <>.jar –browserSideLog

Q.86.Can I use Selenium RC on my UNIX/Mac also?

    You can use Selenium RC on any system which is capable I running Java. Hence you can use it on RC and UNIX machines also

Q.87.I want to test my scripts on new experimental browser, how do I do that?

    You can specify *custom followed by path to browser to execute your tests on any browser while starting Selenium server *custom

Q.88.I executed my tests cases but where is the test report?

    Selenium RC itself does not provide any mechanism for test reporting. Test reporting is driven from the framework you use for Selenium. For example with java client driver of Selenium –

·if you are using JUnit then you can use ant plug-in of JUnit to generate test report · if you are using TestNG then TestNG generates reports for you

Same reporting option is available with PHP unit and other client libraries you are using.

Q.89.How do I use recovery scenarios with Selenium? I used to use them with QTP.  

     Power of recovery scenarios lies with the programming language you use. If you are using java then you can use Exception handling to overcome same. For example if you are reading data from a file and file is not available then you should keep you code statements in “try catch” block so that test execution could continue even in the wake of errors. Such mechanism entirely boils down the errors you want to recover from, while being able to continue with test execution.

Q.90.How do I iterate through options in my test script.

     You can use loop features of the programming language, for example you can use “for” loop in java as following to type different test data in a text box –

// test data collection in an array

String[] testData = {"test1", "test2", "test3"};

// iterate through each test data

for (String s : testData) {

selenium.type(“elementLocator”, testData);

} 

http://akhilreddytechnologies.blogspot.in/2015/09/top-50-selenium-realtime-interview.html

Q.91.Can I execute java script from my tests? I want to count number of images on my page.

    You can use method getEval() to evaluate java script. For example if you want to count number of images then you can pass following dom statement to getEval() as following –

selenium.getEval("window.document.images.length;");

Or to get All anchor objects from a page

selenium.getEval("window.document.getElementsByTagName(‘a’);");

Q.92.Is there a way for me to know all available options when I start Selenium Server?

      If you want to see all options available while starting Selenium server then you should use option “-h” while starting Selenium server - Java –jar .jar –h

It would display you all the options which you can use while starting the Selenium server.

Q.93.I have created my own firefox profile; can I execute my test scripts on it

    You may like to create your own firefox profile because Selenium always created a clean firefox profile while executing the tests and none of your FF settings and plug-in are considered with this clean profile. If you want to execute tests on FF with your settings then you should create custom profile for FF. To be able to execute tests on a custom firefox profile you should specify its path while starting Selenium server. For example if your new profile is stored at “awesome location” in your directory then you should start Selenium server as following – Java –jar .jar -firefoxProfileTemplate "awesome location"

Q.94.How do I capture server side log from Selenium server?

    Start your Selenium Server as following –

java -jar .jar -log selenium.log

And Selenium would start logging server side info, i.e.

20:44:25 DEBUG [12] org.openqa.selenium.server.SeleniumDriverResourceHandler - Browser 12345/:top frame1 posted START NEW

Q.95.What are Heightened Privileges Browsers?  

Firefox and IE have browser modes which are not restricted by java script’s same origin policy. These browsers are known as browsers with elevated security privileges. In case of Firefox it is known as chrome (It’s not the Google browser) and in case of IE it is known as iehta

Q.96.My application has lots of pop up window, how do I work with them?

   You need to know the Window ID of pop window to be able to work with them. First you need to bring control on pop up window; execute selenium commands there, close the pop up window and then bring control back to main window. Consider following example where click on an image brings a pop up window –

// click on image brings pop up window

selenium.click("css=img");

// wait for pop up window identified using anchor target "ss"

selenium.waitForPopUp("ss", getWaitPeriod());

selenium.selectWindow("ss");

// Some more operations on popup window

// Close the pop up window and Select the main application

window

// Main window is selected by adding null as argument

selenium.close();

selenium.selectWindow("null");

// continue with usual operation J

Question 80:

While trying to execute my tests with firefox I encountered following error – “Firefox Refused

Shutdown While Preparing a Profile”. How do I solve it?

Answer

This message simply means that Selenium is not able to launch FF browser as it is already

Running on your system. To overcome this you should close all running instances of FF browser.

You should also check your system process if there is any hidden FF profile running which is not

Visible on screen. You should kill all FF processes and following this your tests should run smooth

Q.97.While trying to execute my tests with Firefox I encountered following error – “Firefox Refused

Shutdown While Preparing a Profile”. How do I solve it?

        This message simply means that Selenium is not able to launch FF browser as it is already running on your system. To overcome this you should close all running instances of FF browser. You should also check your system process if there is any hidden FF profile running which is not visible on screen. You should kill all FF processes and following this your tests should run smooth

Q.98.My application uses Ajax heavily how do I use Selenium RC to work with Ajax operations?

   Ajax operations don’t reload a page like normal form submission but they make http requests behind the scene. You cannot use waitForPageToLoad for such operations and instead should use conditional wait for change in state of application. This could as well mean waiting for presence of an element before continuing with test operations. Consider following example in which type operation triggers Ajax operation which is followed by conditional wait for presence of a text box – // type operation brings element “q” on screen without loading the page

selenium.type("elementLocator", "testData");

// conditional wait for element “q”

for (int second = 0;; second++) {

if (second >= 60) fail("timeout");

try { if (selenium.isElementPresent("q")) break;

} catch (Exception e) {}

Thread.sleep(1000);

}

Q.99.How do I upload a file using Selenium? I need to upload a word file during test execution.

      If you are using Firefox then you can use “type” command to type in a File Input box of upload file. But type operation does not work with IE and you would have to use “Robot” class in java to work make file upload work.

Q.100.Why do I get “permission denied” error during execution of Selenium tests?

    The primary reason of permission denied error is same origin policy restriction from java script. To overcome this error you can use browsers with elevated security privileges. In case of Firefox you should use *chrome and in case of IE you should use *iehta as browser for working with Selenium.