Selenium (http://seleniumhq.org/) has now emerged as one of the top contenders to take on QTP in the test automation tools space. Our teams at Zen Test Labs (www.zentestlabs.com) were one of the early adopters of this automation tool and have built up a decent level of expertise in automating test scripts using selenium. We recently also presented a tutorial on this topic at STARWEST, California in October 2011.
While both tools have their advantages and disadvantages, object repositories are one area that I have found to be important but not supported by Selenium. An object repository is a centralized place for storing properties of objects available in the application under test (AUT) to be used in scripts. QTP comes with its own object repository where one can record and store objects.
Over the course of a recent project I have tried to implement object repository in and it worked really well. I am listing below, how I went about doing this.
1. Create an interface of a name you want to give to your object repository as follows,
// Now here you can store properties of the object in variable
Static String ddCategory = “id=ctl00_MainContent_ddlCategory”;
Static String btnSave = “”id=ctl00_MainContent_btnSave””;
2. Implement the interface into your class and you are good to use objects in your functions
Class TestLibrary implements ObjectRepository
public String testFuntion()
//here you can your object to perform actions or validations
In the above example, I have implemented it in java and have also tried it in C#. Thus, using OOPS concepts I feel that this can be implemented in any object oriented language supported by Selenium.
What is important to note is that one can also connect to excel or any database and store values. Thus in the event of changes in the application or changes in properties of any object; a simple change in the excel file or DB will reflect across all instances of the object.
Some of the advantages of doing this include:
1. Easily maintain your tests or components when an object in your application changes
2. Manage all the objects for a suite of tests or components in one central location
3. Code becomes more readable & easy to write when user defined objects name are used instead of complex and long property name & value.
These have been some of the approaches that have worked for me and my learning’s. Would be great to get to know other people’s experiences in implementing object repositories within Selenium
Hemant Jadhav | Senior Consultant | ZenTest Labs