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What is Descriptive Programming?
QTP can perform some action on objects at run time only when it is able to uniquely identify the object. In order to identify the object at run time (play back), QTP learns some physical properties of the object at the time of recording and stores them in object Repository (OR). When QTP runs the script, it compares these properties and values to the actual objects appearing in the application, and performs the action on the object if it finds it.
Thus, it is not possible for QTP to perform action on objects during run time if the objects are not there in OR. But descriptive programming provides a way to perform action on objects which are not in Object repository. We can instruct QTP to perform methods on the objects that are not there in object repository with the help of programmatic description or descriptive programming.
When and Why to use Descriptive programming?
When using Descriptive Programming (DP), we’re bypassing the native object repository (OR) mechanism which may have many advantages. Let’s examine the situations in which the OR’s advantages are outweighed by the DP.
Suppose we are testing the site that displays the list of users whose details matches with the search criteria that is entered in search text field. With the names, the application also displays checkboxes against each name. Now, we want to test the scenario where application sends mail to all the users whose names are displayed in the list. But we are not sure how many check boxes will be displayed on the page as the search criteria can differ . In this situation, you can use a programmatic description to instruct QuickTest to perform a Set “ON” method for all objects that fit the description: HTML TAG = input, TYPE = check box
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