Descriptive programming in QTP: Questions Answers

This post discusses on concepts of descriptive programming in QTP through questions and answers. Difference between DP and OR, types of DP, various examples are explained in this article

Question  1: What is descriptive Programming?

Answer: Descriptive programming allows working on an object by describing properties of the object at run time. Descriptive Programming provides flexibility to select properties. For e.g.: Suppose we have Web Object, we can use only html Id if defined for the object and some other properties if html id is not defined such that description of object is unique.

Question 2:  What are different types in which descriptive programming can be implemented?

Answer: Descriptive programming can be implemented using string based description or object based description:

               a.  String based Description

               b.  Using Description Object

Question 3: What is String based Description approach for descriptive programming?

Answer: In String based description, we create a description string similar to the tree structure we get on recording in QTP. So what we do is replace the tree structure with description string:

e.g:  Browser(“Google”).Page(“Google”).WebEdit(“q”).set “nitin” 

In Case of Object Repository(Recording) is expressed in Descriptive Programming as :Browser(“name:=Google”).Page(“name:=Google”).WebEdit(“html id:=qq”,”index:=0”).Set “nitin”

Note: We can have parent object defined using OR and child object using DP, but vice versa is not possible, i.e Parent object description using DP and child object using OR.

Browser(“Google”).Page(“Google”).WebEdit(“html id:=qq”,”index:=0”).Set “nitin” is correct but

Browser(“name:=Google”).Page(“Google”).WebEdit(“html id:=qq”,”index:=0”).Set “nitin” is incorrect

Question 4: How is Descriptive programming implemented using description object?

Answer:  Using description object, we create description object and add properties to the object

e.g: Set objdesc = description.create

objdesc(“name”).value =”google”

Browser(Objdesc).Close

Or

Set objdesc = description.create

objdesc(“name”).value =”search”

Browser("Google").Page("title:=.*").WebButton(objdesc)

Question 5: I want to know number of links in a page, how Can I found the same using description object

Answer: Code to find number of links in a page is:

Set objLink=Description.Create ‘’Create a description object
objLink("html tag").value="A"    ‘’Now the description object will refer to collection of object with tagName as “A”
set olnk=Browser("Google").Page("Google").ChildObjects(objLink) ‘’Collection of all links in page(“Google”)
iCount = olnk.Count ‘’Count of all links in the page.
MsgBox “Count of links in Page are” & iCount

Similar to number of link, we can find number of Editbox (tagname as Input), Image(Img) and so on in a page

Question 6: I want to know, if certain object exist in a page and create a generic function to verify object of various types, How to code for this?

Answer: Function below can be used to create a common function to verify existence of various types of objects in the page:

Call Func_IsExistsObject(“Html id>abcd”,”WebEdit”,)

Public Function Func_IsExistsObject(strobjDescObj,strObjType,)

On error resume next

Func_IsExistsObject = "False"  ‘’ Set the flag as ‘False’ at start of test execution

Set objDesc= Description.create ‘’create  description  object

strobjDesc = split(strobjDescObj,">")

objdesc(strobjDesc(0)).value = strobjDesc(1)

objdesc("index").value = 0

If(ucase(strObjType) = "WEBBUTTON") Then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebButton(objdesc).Exist

ElseIf(ucase(strObjType) = "IMAGE") Then

Func_IsExistsObject = Browser("Google").Page("title:=.*").Image(objdesc).Exist

ElseIf(ucase(strObjType) = "CHECKBOX") then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebCheckBox(objdesc).Exist

ElseIf(ucase(strObjType) = "PAGE") then

Func_IsExistsObject = Browser("Google").Page(objdesc).Exist

ElseIf(ucase(strObjType) = "WEBELEMENT") then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebElement(objdesc).Exist

ElseIf(ucase(strObjType) = "WEBTABLE") then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebTable(objdesc).Exist

ElseIf(ucase(strObjType) = "WEBLIST") Then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebList(objdesc).Exist

ElseIf(ucase(strObjType) = "WEBEDIT") Then

Func_IsExistsObject = Browser("Google").Page("title:=.*").WebEdit(objdesc).Exist

ElseIf(ucase(strObjType) = "LINK") then

Func_IsExistsObject = Browser("Google").Page("title:=.*").Link(objdesc).Exist

End If

Exit Function

Question 7: How to close all browsers except QC using descriptive programming?

Answer:  Below lines of code can be used to close all browsers except QC using descriptive programming:

Set oBrowser = Description.Create

oBrowser("micclass").Value = "Browser"

Set ColBrowser= Desktop.Childobjects(oBrowser)

For i = 0 to CollBrowser.count -1 step 1

                If Instr(CollBrowser (i).GetROProperty("Name"), "Quality Center") = 0 Then

                                CollBrowser(i).Close

                End If

Next

Question 8: What are the advantage and disadvantage of descriptive Programming compared to Object Repository?

Answer: Using Descriptive Programming helps in Portability and helps to identify object in case of dynamic object or creating objective library of description objects in case application is not developed completely but we know the properties of objects. For further details of comparison of Object Repository , Refer to  below links:

Descriptive Programming Basics

Examples of Descriptive Prgramming

How to work with Actions in QTP - Question in QTP

Question 1: What are Actions in QTP?

Answer: When we create a test in QTP, An action is created by default.  A test comprises call to multiple actions. Action helps divide the test into logical units and can be called multiple times within the test by some other actions. To understand this better, suppose I have an application that calls to login into application, then create a deal, viewing the deal, editing the deal, viewing the deal , and log out from application. So we can divide the test into actions as shown in screenshot below and call the actions from a main action.

 

Example

Question 2: Functions also help divide the test into logical units, so how Actions are different from functions?

Answer: We can understand the difference between an action and function by below comparisons:

1.   As we create a test in QTP, An action is created by default. Inside an action we can write multiple functions or call functions from external vbs libraries.

2.   Action is a QTP Feature whereas Function is a VB Script feature.

3.   Action are integral part of QTP Test, artifacts such as data table, object repository, checkpoint are associated to the action and are specific to the action, whereas we cannot associate these artifacts with a function,  but can be used by function if function is called within the action with which the object repository is associated.

4.   Since Action have data table, and object repository, there take lot more space to functions, and are not useful in case we are using DOM or Descriptive programming for object identification and external test data in the form of excel sheets or database.

5.   There is no limit to the number of functions that can be created or called within an action, but we can create a maximum of 120 actions in QTP 11.

6.   We can return complex values from a function including arrays and object which is not possible in action parameters.

7.   Editing an external function is much easier compared to an external action called by an action at runtime.

8.   We can load both the external test actions and function libraries at run time.For external test action: use statement LoadandRunAction, whereas for loading external libraries use LoadFunctionLibrary.

Question 3: How do we return value from an action?

Answer: We can return value from an action using Input Parameter and output parameters.

Question 4: What are the various types of Actions in QTP?

Answer:  Following are the types of actions in QTP:

Reusable action – A newly created action in QTP is reusable by default. A reusable action can be called by other action within the test or external actions.

Non-reusable action – By default, an action is reusable in QTP, but can be made non-reusable by changing action Properties. A non-reusable action cannot be called from other actions.

External action- This is a reusable action stored in another test. This is explained earlier in this article how to call an external action.

Nested action - An action can call another action. This is known as nesting an action. For e.g : Multiple action called from an action and specific action being executed based on some condition using conditional looping.

Question 5: What is difference between Calls to Copy of Actions and Calls to existing actions?

Answer: Both Call to Copy of Action and calls to existing action are used to call another reusable action.

On inserting a call to copy of an action, the called action is completely copied in the test together with resources including Object Repositories, data, and checkpoint. We can edit the script stored in action and make changes to the resources like Object repositories associated with the action. Changing the action does not have any impact on the original action and change in original action will not modify the copied action.

Inserting a call to existing action allows viewing the steps of the action, but user cannot modify them. The called action’s local object repository is also read-only.

Question 6: Which of the following can be used to transfer data between actions in a QTP test?

a.    Using Global Data Sheet

b.    Using Dictionary Object

c.    Using Action or Test Output Parameters

d.    Using Environment Variable

e.     All of the above

Answer: We can transfer data between actions using any of the above.

Question 7: What is syntax for running an action in QTP?

Answer: An action can be called from another action within the same test using RunAction.

The syntax for RunAction is :  

RunAction ActionName, IterationQuantity, Parameter

Where IterationQuantity and Parameters are optional.

e.g:   RunAction "Action1", oneIteration, Parameter("output"),DataTable("Outparam", dtLocalSheet)

 Similarly, if we need to run action from external test, we can use use 

LoadandRunAction.Syntax : LoadandrunAction(Test Path, ActionName , iterations, Parameters)

Question 8: Which of the following are specific to action and are created/associated at action level?

a.      Object Repository

b.      Local Data table

c.      Checkpoints

d.      Recovery Scenario.

Answer: All except Recovery Scenario are associated at action level, recovery scenario are associated for the test.

Understanding All about object Repository: Subjective and Multiple choice Questions

In this article, we discuss about concepts of object Repository in QTP by subjective and multiple choice questions. Your suggestions are most welcome if I missed on anything in this article related to object repository.

Question 1: What is object Repository?

Answer: Object repository is a repository where collection of objects with identification properties are saved. Objects in an object repository are stored in a tree structure. E.g. a WebEdit object in object repository will have parent as Page, and page will have a parent browser. So for a browser object, we can have multiple page objects, and inside a page object we can have multiple web edit boxes. Object Repository stores objects and checkpoints.

Understanding Object repository Window

Question 2: Where can we see the object repository Window in UFT 11.5?    

a. By clicking CTRL+R

b. Navigating to Resources>Object Repository

c. Navigating to Tools>Object Identification

d. By clicking CTRL+A

Answer: To view Object Repository window, Navigate to Resources>Object Repository or Click CTRL+ R. So option a) and b) are correct

Question 3: Explain various menu items in the Object Repository Window?

Answer: The various menu items in Object Repository Window:

      File:  File menu provides option to export object from local repository to a shared repository. When we learn object, objects are associated with an object repository for the particular Action and not be used by other actions. To use the same objects in other actions/ tests, we need to create shared OR. A shared OR is created by exporting objects from local repository. When we export local objects using File>Export Local Objects, a shared object repository is created at location defined. Instead if we use File>Export and Replace local objects, local object repository is removed, and a shared repository with action with all the local objects

Adding a new test object 

        Edit: Provides option to cut, copy, find, replace, or delete an object in repository.

        Object: Object Menu allows us to do following tasks:

a.       Define New Test Object – A new test object can be created based on environment, object class, and properties defined by user. This is useful in case the properties of object yet to be created by developer are known to tester.

b.      Adds object to local – Allows to add objects from application to repository

c.       Update object from application – this allows to update object properties for an object in repository with the properties of selected object from application

d.      Add Insight Object to local – This adds insight object to the repository by user. An Insight object similar to other objects can be added during recording as well as manually by learning through application.

e.      Copy to Local – An object from associated shared object Repository can be copied to Local using Copy to Local.

          View: Allows user with following tasks:

a.       Compact view – Provides user option to view the object repository in compacts (Object Properties are not displayed in compact view)

b.      Highlight in Application –  this feature highlights the selected object in application and helps user know object is available

c.       Locate in Repository – This is to verify object in application is already available in repository.

         Tools: Provides following tools to the user:

a.       Object Spy – One of the first of features of QTP that we use in QTP to identify object properties is Object Spy. We can view the native properties and test object properties for an object and available methods based on object class.

b.      Associate Repositories–  We can associate repositories with the action using associate repositories.

c.       Delete Insight Objects

         Help: Provides help on object repository window

Question 4: Which of the following are types of Object Repository?

a.       Local Repository

b.      Shared Repository

c.      Global Repository

d.      Test Repository.

Answer: Local Repository and shared Repository are types of object repository. When we record on an application, or learn objects, objects are stored in the object repository specific to the action in which we learn or record in the application. This repository is known as Local Repository as is specific to the action. If we want to use same object in multiple test/action, we should use shared object repository. 

When we export local object as explained in file section of Answer 3), a shared repository is created, We can merge object Repositories to form a large shared object Repository using Merge Object Repository feature in Object Repository manager. Shared Object repository can be used in multiple actions by associating the repository with action

Question 5: We have associated different shared repositories and have some local object. How can we view object from local repository only in object Repository window?

a.       Compact View shows only local objects in the repository

b.      We cannot distinguish between Local and shared repository object.

c.       Local objects are editable in Object Repository Window whereas objects from shared repository are non-editable and are displayed lighter/fade in color compared to Local object

d.      Using Filter from Pane to filter objects from different repositories

Answer: Option c.) and d.) are correct, Local objects are editable in Object Repository Window whereas objects from shared repository are non-editable and are displayed lighter/fade in color compared to Local object. Using Filter from Pane to filter objects from different repositories as shown below:

Question 6: What is the extension of a Shared object repository in QTP?

a.       .tsr

b.      .qrs

c.       .mts

d.      .tsp

Answer: Extension of a shared repository file is .tsr. qrs is extension for recovery file, .tsp is extension for a test, and .mts stores the script of an action