Parameterization in selenium ide - Example of data driven testing with selenium IDE

Data driven testing using selenium IDE software automation testing tool is not much more hard but initially you need to configure selenium IDE before you proceed for Parameterization using Advanced Selenium IDE features. There are 2 methods of Parameterization in selenium IDE software testing tool. Let me describe 1st method of Parameterization in this post. You can read my next post
for 2nd method of data driven testing in selenium IDE.

We need to attach external selenium IDE user extension to get support of "while" and "endWhile" commands in our Parameterization software test case. Also you need to attach data file(Only in .js format) with selenium IDE to read data from it.

1st Step is to Download user extension file for Parameterization and save it in your hard drive. Now i created data.js file for our example. Download data.js file and save it in your hard disc. Data.js file contains array of data which we will use in our script. Click here to read how to attach user extension and data file with selenium IDE.

After attaching user extension and data file, your selenium IDE option window will looks like bellow image.

Now restart your selenium IDE software testing tool and create bellow given Parameterization example software test case in your selenium IDE and run it.

New Test
Command	Target	Value
setSpeed	500
storeEval	carnamearray.length;	length
store	0	MyVar
open	http://www.google.com
while	storedVars.MyVar < storedVars.length
storeEval	carnamearray[storedVars.MyVar]	carname
echo	${carname}
type	id=gbqfq	${carname}
click	id=gbqfba
pause	2000
store	javascript{storedVars.MyVar++;}
endWhile

Note : You Can Find More Advanced Command Tutorials Of Selenium IDE On This Link.

Let me describe main steps how it works. 

• 2nd command "storeEval" will read the length of array(carnamearray) from data.js file and save it in variable 'length'. There are 5 values inside array so value of variable 'length' = 5.
• Initially, 'MyVar' has '0' value.
• "while" command will rotate the loop 5 times as per given condition 'storedVars.MyVar <= storedVars.length'
• Here, "storeEval" command is used to read value from data.js file and to store it in variable. When it will be executed 1st time, it will retrieve carnamearray[storedVars.MyVar] = carnamearray[0] = "Acura" from array of data.js file and it will save it in variable carname. 
• (Note : Here, Name of array used in data.js file and used with "storeEval" command must be same. In our example, i used 'carnamearray' on both the places).
• Now variable, carname contains "Acura" so next "type" and "click" commands will search with keyword "Acura" on Google.
• 2nd last "store" command will increase the value of  variable 'MyVar' by 1. Now 'MyVar' = 1
• 2nd time, "storeEval" command will retrieve carnamearray[storedVars.MyVar] = carnamearray[1] = "Audi" from array of data.js file and it will save it in variable carname.

This cycle will run for 5 times and everytime "storeEval" command will retrieve new data value from array of data.js file. In this way we can perform data driven software testing in selenium IDE.

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