QTP Interview Questions and answers

Question.1   What phases are involved in testing an application in QTP?

Answer:   The Quick Test Professional process consists of the following main phases:

Analyzing Application: before preparing test cases need to analyze the application to find out the testing needs.

Preparing Testing Infrastructure: based on testing needs create those resources, resources like, shared repository, function library etc.

Building Test Cases: create test script containing action to be performed while testing. Add object repository with the test function libraries.

Enhancing Test: by making use of checkpoints, broadening the scope of test, add logic and condition to test for checking purpose.

Debugging, Running and analyzing Test: debug the test so that it works without interruption. Run these test and analyze the test result generated by QTP

Report Defects: lock bug into the bug report and send it to the development team.

Question.2   How many types of recording modes in the QTP?

Answer:  The QTP enable us with three type of recording mode:

Normal (by Default recording): In this recording mode QTP identify the object irrespective of their location on the screen. It is done by recording object based on application window.

Analog Recording: it is used when exact mouse movement and action performed by mouse is important. Used in testing the paint application and signature made with the help of mouse.

Low Level Recording: it helps in identifying those objects which is not recognized by the QTP. It is used when the location of object is changing inside the screen.[sociallocker]

Question.3   What is object repository?

Answer:  Object Repository: when QTP learn any object from application it stores those object in the Object Repository with the properties of the object. It is used to identify the object. There are two types of object repository:

Shared Object Repository: It can be shared between multiple tests but it does not allow making changes in the repository. Mostly used in Keyword Driven methodology. It is saved with .TSR extension.

Local Object Repository: This type of object repository is linked with only one test. In this we can perform change in the repository, like changing the properties of the object, adding object in the repository. It is saved with .MTR extension.

Question.4   Explain step generator in QTP?

Answer:   Step Generator in QTP helps in creating those steps which is performed over the object while testing. Use of Step Generator in QTP:

Help in debugging the script by making use of Break.

To add those step which we forget to perform while recording.

To ensure that objects exist in the repository

To add up step in the function library.

Question.5   Explain the use of Action Split in QTP?

Answer:   Action Split: it is used to split the action into two parts. There are two type of split an action:

Splitting into two sibling action: both split actions are independent of each other.

Splitting into Parent-Child nested action: in this second split action is only called after the execution of the parent split action. Child split action depends upon the parent split action.

QTP generated the duplicate copy of the object repository when we perform Split action. We can add object to anyone spilt action which is not added into another split action’s repository.

Question.6   What is the purpose of loading QTP Add-Ins?

Answer:     Add-Ins: are small programs or files which can be added to computer in order to enhance the capabilities of the system. The purposes of loading Add-Ins into QTP are following:

To increase capabilities of the system.

To improve the graphics quality, communications interface.

To load the particular function into the memory.

To excess only those functions that is required for the execution of the script.

Question.7   What is a data driven test in QTP?

Answer:   Data Driven is an automation testing part in which test input or output values, these values are read from data files. It is performed when the values are changing by the time. The different data files may include data pools. The data is then loaded into variables in recorded or manually coded scripts. In QTP to perform the data to drive the test, we use the parameterization process. When we do data-driven test, we perform two extra steps:

Converting the test to a data-driven test.

Creating a corresponding data table.

Question.8  How to use Parameterization in QTP?

Answer:  It is the process of making use of different values in place of recorded values which is replaced by variable which contains different values that can be used during the execution of the scripts. QTP enable us with different type of Parameterization, passing of data:

Using Loop statement.

Dynamically test data submission

Using data table.

Fetching data from external files.

Fetching data from databases.

By taking test data front end(GUI)

Question.9   Is it possible to call from one action to another action in QTP?

Answer:  Yes, QTP enable us to call from one action to another action. There are two ways of calling action: 

Call to Copy of action: in this we generate the copy of action in our repository which enables us to perform change to the copy of action.

Call to Existing action: we call to action which is made up earlier. This generates the reference to the action. We can access the action in read only mode. In this no copy of existing script and data table is made.

Question.10   Explain different types of action in QTP?

Answer:   When generating the test script, it includes only one action. Action contains the number of steps to be performed on application to test the application. There are three type of action in QTP:

Non-Reusable action: it can be called by test only once in which it is stored.

Reusable action: it can be called by test multiple times in which it is stored.

External action: it is reusable action but stored in external test. We can call external action but it will be available in read only mode we cannot perform any change to the External Action.

Question.11   What is difference between Run time object and Test object?

Answer:  The difference between Run time Object and Test object are:

Run time object are actual object in the application whereas test object are reference of the actual object.

Run time object always have same name whereas test object name varies in different environment.

Test object are used to identify the actual object in the application which is run time objects.

Run time object resides in the application whereas test object resides in the object repository.

Question.12   Explain Measuring Transaction?

Answer:   Measuring transaction means that to measure how much time it take to execute a set of step over the application. A transaction is collection of steps that we are intended to know how much time it take to execute. We can define the transaction by enclosing the set of steps with the start transaction and end transaction.

Start transaction: after encounter of start transaction time measurement start.

End transaction: it is used to stop the time measurement.

Question.13   Explain different checkpoints in QTP?

Answer:   Checkpoint is a point where QTP current value or property of the object with the expected value or property of the object. When we insert the check point in the test, then in keyword view checkpoint is added in front of current row and in expert view a checkpoint statement is added. QTP enable us with following types of check point:

Standard Checkpoint: check properties of objects like button, combo boxes, list etc.

Image Checkpoint: check value of an image

Bitmap Checkpoint: check image zooming capability.

Table Checkpoint: check information of a table.

Text Checkpoint: check text is displayed on correct place.

Text Area Checkpoint: check text is displayed in specific area.

Accessibility Checkpoint: used to determine website which is not as per W3C guidelines.

Page Checkpoint: checks properties of the webpage.

Database Checkpoint: check content of database

XML Checkpoint: check XML content.

Question.14   Can we create a QTP test from QC?

Answer:  Yes we can create QTP test from QC but we must first make sure QTP has the ability to execute tests from Quality Center. Please ensure the following option in QTP Run Settings is enabled:

When QTP is enabled, follow the below steps to schedule and execute tests from Quality Center:

1. Login to Quality Center and Navigate to Test Lab Module

2. After selecting the correct Test Set, Click the Execution Flow Tab.

3. Right-click on the test that requires configuration of Time Dependency and click Test Run Schedule.

4. In the Run Schedule window, select the Time Dependency tab. The time and date of execution can be configured.

5. Time dependency will be added to the relevant test.

6. After time dependency has been added, navigate back to the Execution Grid pane. From the Execution Grid, select the tests to be run at the designated date and time.

7. From the Automatic Runner dialog, click Run All.

8. Once Run All is clicked from the Automatic Runner dialog, the test status will change to Waiting and QC will fire the tests to be run at the scheduled date and time:

9. QC will fire the tests in the sequence configured in the Execution Flow pane. The Test Run Scheduler will show all the tests that were selected and are executing and are to be executed.

Question.15   What is expert view and keyword view?

Answer:   Expert View: It contains the steps performed over the application in VBScript language.

Expert view enables us to editing the script.

In keyword view a row exist for each object and method which is mention in Expert View.

Keyword View: contains the steps executed on the application in keyword driven tabular form in English language.

Keyword View contains four fields: ITEM, Operation, Value, and Document.

Selecting items and operation we can create and modify test.

Question.16  Describe Synchronization Point?

Answer:   Synchronization Point: When application response speed is not same as the test execution speed this may cause error. In order to remove this error we use Synchronization point. Synchronization is done by making QTP test to wait until the application is ready for execution. When we insert Synchronization point in test then QTP generates the WaitProperty Statement in the ExpertView. For synchronization we can use:

Exist statement

Wait statement.

Increase the defaulted time of QTP waits for web page to load.

Change in default timeout setting.

Question.17   Explain checkpoint?

Answer:  Checkpoint is a point where QTP current value or property of the object with the expected value or property of the object. When we insert the check point in the test, then in keyword view checkpoint is added in front of current row and in expert view a checkpoint statement is added

Question.18   What is Keyword Driven Framework?

Answer:   In Keyword driven framework the QTP executed script which is written in the excel sheet by help of Driver Script. For making Keyword Driven Framework we have two ways:

Specify Script Values Directly in the Excel

Write Global Functions to perform action on application as function keywords in Excel.

Question.19   What are benefits of QTP?

Answer:   The benefits of QTP are:

Standalone tool and integrated with Quality Center.

Testing results stores in database automatically, can be used for analyzing system performance.

Supports Key word driven testing.

QTP Identifies objects, even if they change from build to build.

By using QTP, Test execution time and cost will reduce.

Suitable for both client server and web based application

Better error handling mechanism

Excellent data driven testing features.[/sociallocker]

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