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 Challenges faced using Selenium Automation testing, and how to solve them

Selenium at times fails to function correctly in a dynamic event or change take place duting the test cycle. A few common problems faced are listed below, along with how to mitigate them with selenium automation

1. Image or Text overlapping issues

2. No facility to deal with Captcha, bar code.

3. Does not support any non web based like(Win32,Java Applet, Java Swing,.Net client server etc) applications.

4. When you compare selenium with QTP ,SILK TEST, Test Partner and RFT, there are many challenges in terms of maintainability of test cases.

5. Since selenium is a freeware tool, there is no direct support if one is n trouble with the support of the application.

6. Bitmap comparisons is not supported by selenium.

7. Any reporting related capabilities, you need to depend on third partytools.

8. You need to learn any one of native language like(.Net,Java,Perl,Python,PHP,RUBY) to work effectively.

9. Difficult to identify dynamic objects.

10. Working with frames.

11 . Selenium test playback is slow.

12. JavaScript sandbox,Flash,Applets,Silverlights and HTML’S Canvas all present problems n selenium.

13. Dealing with Popup windows: Selenium can sometimes fail to record common popups in web apps. To handle any kind of  alert popup , you can apply a get Alert Function. Before actually running the script , you must import a package  that can  generate a WebDriver script  for handling  alerts. The efficient  interface  brings with it the following  commands: void dismiss(), void accept(),getText() void sendKeys(string stringTosend).The first two basically click on the  “Cancel” and “OK” BUTTONS respectively on a popup windows .

14. Timeout resulting from synchronization problem: One should ideally use selenium.IsElementPresent(locator) to verify that the object  is in a loop  with Thread.sleep()

15.Testing  Flash app: To automate  flash apps with selenium, one can use  Flex Monkium.The application  source code  must be compiled  with the  swc  files  generated by  Flex Monkium. Then the app and the selenium IDE are connected, and the tests can be recorded             

16. Unexpected error launching Internet Explorer: Browser zoom level should be  set to  100% by default  for the IE browser to overcome this error.

17. Protected Mode: must be set  to the same value error occurs  when trying  to run  selenium  WebDriver on a fresh  Windowsmachine.This issue can be fixed by using  capabilities  as below  when launching IE.

18. Cross browser tesing issues.

19.Ajax Compenents.

 What are the benefits of automation testing?

·         Saves time and money .Automation testing is faster in execution.

·         Reusability code, create one time and execute multiple times with less or no maintenance.

·         Easy reporting .It generates automatic reports after the test execution.

·         Easy for compatibility testing .It enables parallel execution in the combination of different OS and browser environments.

·         Low cost maintenance. It is cheaper compared to manual testing in a long run.

·         Automated testing is more reliable

·         Automated testing is more powerful and versatile.

·         It is mostly used for regression testing. Support execution of repeated test cases.

·         Minimal manual interventions. test scripts can be run unattended.

·         Maximum coverage. It helps to increase test coverage.

Pros and Cons of selenium WebDriver.

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1.       Open Source.

2.       Supports multiple languages Java c# .net python perl ruby php javascript

3.       Supports all platforms/os Windows,MAC OS,Linux,Unix

4.       Cross browser testing Chrome,Firefox,Safari,IE Opera

5.       Head less browsers PhatomJS HTMLunitDriver Chrome HeadLess

6.       Can be integrated with any  open source  unit testing framework TestNG Junit

7.       BDD Frameworks Cucumber,JBehave,Serenity

8.       Light Weight

9.       Availablein the form of APIs

10.   Easily integrated with CI—CD process, Jenkins

11.   Can be executed on local machines as well as  Cloud/VM/Servers/BrowserStack SauceLabs AWS Docker

12.   Customize WebDriver codebase—soure code will be shared

13.   Wrappers:Appium,Protractor,Watir,Robot Framework.

Cons:

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1 .As it is Open Source , So no direct Support

2.You need to learn programming—No Srciptless or codeless automation

3. No Desktop app Automation support

4.no report for test results

5. for any extra work:test case design