Skip to main content

Add Custom functions to Selenium

We can add custom functions to selenium or extend your selenium jar functions as you want. We can do this in 2 ways.

1. Extending selenium-browserbot.js and selenium-api.js
     a. Extract your selenium-server-standalone-xxx.jar to temp folder.
     b. Find the files selenium-browserbot.js and selenium-api.js inside core\scripts\ folder.
     c. Add your custom function to class BrowserBot like below in selenium-browserbot.js.

  1.  BrowserBot.prototype.yourFunctionName = function() {
  2.                    //code here
  3.         }

     d. Now add your function to class selenium to expose Selenium API like

  1. selenium.prototype.yourFunctionName = function() {
  2.               return this.browserbot.youFunctionName();
  3.          }

     e. Thats all. Re-bundle your JAR file with updated files. Your Selenium-Server JAR file  is ready with your custom functions.

Here is the example code:

  1. BrowserBot.prototype.getAllRadios = function() {
  2.        var elements = this.getDocument().getElementsByTagName('input');
  3.         var result = [];
  4.         for (var i = 0; i < elements.length; i++) {
  5.            if (elements[i].type == 'radio') {
  6.                result.push(elements[i].id);
  7.            }
  8.         }
  9.          return result;
  10.  };

To add in selenium-api.js,
  1. Selenium.prototype.getAllRadios = function() {
  2.       return this.browserbot.getAllButtons();
  3. };
So this is a appraoch to extend your Selenium functions. But this approach have risk of altering/damaging existing selenium functions in the JAR package. Thats why they provided a option called User-Extensions.

2. User-Extension.js
a. Just add your custom functions in user-extensions.js by adding function to class selenium.
b. Important point is, here you have use getDocument() for browserbot to do your operations.
c. Finally just start your selenium server JAR with your user-extenstions.js like
java -jar /selenium-server-1.0.1/selenium-server.jar -userExtensions /user-extensions.js
d. Thats all. Your functions are available now in JVM.
e. To use this, create instance for httpCommandProcessor and use doCommand(yourFunctionName) OR simply selenium.youFunctionName.

Here is the example code:

  1. Selenium.prototype.getAllRadios = function() {
  2.        var elements = this.browserbot.getDocument().getElementsByTagName('input');
  3.        var result = [ ];
  4.        for (var i = 0; i < elements.length; i++) {
  5.            if (elements[i].type == 'radio') {
  6.                result.push(elements[i].id);
  7.            }
  8.       }
  9.        return result;
  10. };

Hope this helps you to create your own functions to extend your selenium-server.jar.


Popular posts from this blog

Change IE Browser ZOOM settings

Lot of UI automation testers could have faced this problem as we could change the zoom settings while operating manually for our convenience and forgot to reset to 100%.
But our QTP and some other related tools would operate the browser perfectly if browser zoom is 100%. So wee need to change the zoom before start to run the scripts. Its better to have a code snippet in our framework to change this zoom setting right?
Here we go...

1. We can simply change the Registry values before Invoking IE
Function ChangeRegistry Dim objShell Set objShell = CreateObject("WScript.Shell")  objShell.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Zoom\ZoomFactor", "100000", "REG_DWORD" Set objShell = Nothing EndFunction This option is very useful. But in real time, lot of customers could have restricted write access to windows registry. So we can try other options.

2. Use IE COM object and Change Settings
Function ChangeIEZoom Dim intZoomLevel, objIE  intZoo…

QTP - Object Identification - Prerequesties

While starting a new project or proof of concept or after new QTP installation, we would face the issue in identifying objects as QTP built objects like WinList, WebEdit, etc.; instead everything will be identified as WinObject.

Here are some steps to ensure you did the environment setup RIGHT before start automating.
Did you enabled required Add-ins only while launchingDid you selected "Record >> Record and Run Settings" - This should be based on what type of application you are working with
Windows app - Windows >> Record and run test on any windows applications. Web app - Web >> Record and run test on any open browser.
Did you tried to launch UFT/QTP and then AUT.If its web, ensure browser zoom level set to 100%Try disabling the protected mode in IE for web.Launch UFT and AUT using RUN AS ADMINISTRATORAlso see the Object Identification Methods if you are interested.

Run JavaScript from QTP

Yeah, You can run your pure JavaScript from QTP using RunScript method. Lot of times, we are in need of firing events or simulating actions on web page which is not supported by QTP. At that time, you can use your direct DOM methods and directly execute your script on the web page from QTP like,
Dim MyPage, SearchBox Set MyPage = Browser("title:=Google").Page("title:=Google") Set SearchBox = MyPage.RunScript("document.getElementsByName('q')(0);") SearchBox.Value="testing"
'if objects available in frames, Set SearchBox = MyPage.RunScript("document.frames(4).document.getElementsByName('q')(0);")
Set objFrame = Browser("title:=Google").Page("title:=Google").Frame("title:=something")
objFrame.RunScript("document.getElementsByName('q')(0);") Also, you can execute by obtaining actual browser window object if you have IE app like, Dim IEApp Set IEApp = CreateObject("Internet…