Wednesday, April 8, 2009

QTP Interview Questions 9

13. What is a Run-Time Data Table? Where can I find and view this table?

In QTP, there is data table used, which is used at runtime.
-In QTP, select the option View->Data table.
-This is basically an excel file, which is stored in the folder of the test created, its name is Default.xls by default.

14. How does Parameterization and Data-Driving relate to each other in QTP?

To data driven we have to parameterize. i.e. we have to make the constant value as parameter, so that in each interaction(cycle) it takes a value that is supplied in run-time data table. Through parameterization only we can drive a transaction (action) with different sets of data. You know running the script with the same set of data several times is not suggested, and it’s also of no use.

15. What is the difference between Call to Action and Copy Action.?

Call to Action: The changes made in Call to Action, will be reflected in the original action (from where the script is called). But where as in Copy Action , the changes made in the script ,will not effect the original script(Action)

16. Explain the concept of how QTP identifies object.

During recording qtp looks at the object and stores it as test object. For each test object QT learns a set of default properties called mandatory properties, and look at the rest of the objects to check whether this properties are enough to uniquely identify the object. During test run, QTP searches for the run time objects that matches with the test object it learned while recording.

17. Differentiate the two Object Repository Types of QTP.

Object repository is used to store all the objects in the application being tested.
Types of object repository: Per action and shared repository.
In shared repository only one centralized repository for all the tests. where as in per action for each test a separate per action repository is created.

18. What the differences are and best practical application of Object Repository?

Per Action: For Each Action, one Object Repository is created.
Shared: One Object Repository is used by entire application

19. Explain what the difference between Shared Repository and Per Action Repository

Shared Repository: Entire application uses one Object Repository , that similar to Global GUI Map file in WinRunner
Per Action: For each Action, one Object Repository is created, like GUI map file per test in WinRunner

20. Have you ever written a compiled module? If yes tell me about some of the functions that you wrote.

Sample answer (You can tell about modules you worked on. If your answer is Yes then You should expect more questions and should be able to explain those modules in later questions): I Used the functions for Capturing the dynamic data during runtime. Function used for Capturing Desktop, browser and pages.

21. Can you do more than just capture and playback?

Sample answer (Say Yes only if you worked on): I have done Dynamically capturing the objects during runtime in which no recording, no playback and no use of repository is done AT ALL.
-It was done by the windows scripting using the DOM(Document Object Model) of the windows.

22. How to do the scripting. Are there any inbuilt functions in QTP? What is the difference between them? How to handle script issues?

Yes, there’s an in-built functionality called “Step Generator” in Insert->Step->Step Generator -F7, which will generate the scripts as you enter the appropriate steps.

23. What is the difference between check point and output value?

An output value is a value captured during the test run and entered in the run-time but to a specified location.
EX:-Location in Data Table[Global sheet / local sheet]

24. How many types of Actions are there in QTP?

There are three kinds of actions:
Non-reusable action - An action that can be called only in the test with which it is stored, and can be called only once.
Reusable action - An action that can be called multiple times by the test with which it is stored (the local test) as well as by other tests.
External action - A reusable action stored with another test. External actions are read-only in the calling test, but you can choose to use a local, editable copy of the Data Table information for the external action.

25. I want to open a Notepad window without recording a test and I do not want to use System utility Run command as well. How do I do this?

You can still make the notepad open without using the record or System utility script, just by mentioning the path of the notepad “( i.e. where the notepad.exe is stored in the system) in the “Windows Applications Tab” of the “Record and Run Settings window.

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