How to use Descriptive Programming?
There are two ways in which descriptive programming can be used
1. By creating properties collection object for the description.
2. By giving the description in form of the string arguments.
1. By creating properties collection object for the description.
To use this method you need first to create an empty description
Dim obj_Desc ‘Not necessary to declare
Set obj_Desc = Description.Create
Now we have a blank description in “obj_Desc”. Each description has 3 properties “Name”, “Value” and “Regular Expression”.
obj_Desc(“html tag”).value= “INPUT”
When
you use a property name for the first time the property is added to the
collection and when you use it again the property is modified. By
default each property that is defined is a regular expression. Suppose
if we have the following description
obj_Desc(“html tag”).value= “INPUT”
obj_Desc(“name”).value= “txt.*”
This
would mean an object with html tag as INPUT and name starting with txt.
Now actually that “.*” was considered as regular expression. So, if you
want the property “name” not to be recognized as a regular expression
then you need to set the “regularexpression” property as FALSE
obj_Desc(“html tag”).value= “INPUT”
obj_Desc(“name”).value= “txt.*”
obj_Desc(“name”).regularexpression= “txt.*”
This is how we create a description. Now below is the way we can use it
Browser(“Browser”).Page(“Page”).WebEdit(obj_Desc).set “Test”
When
we say .WebEdit(obj_Desc) we define one more property for our
description that was not earlier defined that is it’s a text box
(because QTPs WebEdit boxes map to text boxes in a web page).
If
we know that we have more than 1 element with same description on the
page then we must define “index” property for the that description
Consider the HTML code given below
<--!input type="”textbox”" name="”txt_Name”"-->
<--!input type="”textbox”" name="”txt_Name”"-->
Now
the html code has two objects with same description. So distinguish
between these 2 objects we will use the “index” property. Here is the
description for both the object
For 1st textbox:
obj_Desc(“html tag”).value= “INPUT”
obj_Desc(“name”).value= “txt_Name”
obj_Desc(“index”).value= “0”
For 2nd textbox:
obj_Desc(“html tag”).value= “INPUT”
obj_Desc(“name”).value= “txt_Name”
obj_Desc(“index”).value= “1”
Consider the HTML Code given below:
<--!input type="”textbox”" name="”txt_Name”"-->
<--!input type="”radio”" name="”txt_Name”"-->
We can use the same description for both the objects and still distinguish between both of them
obj_Desc(“html tag”).value= “INPUT”
obj_Desc(“name”).value= “txt_Name”
When
I want to refer to the textbox then I will use the inside a WebEdit
object and to refer to the radio button I will use the description
object with the WebRadioGroup object.
Browser(“Browser”).Page(“Page”).WebEdit(obj_Desc).set “Test” ‘Refers to the text box
Browser(“Browser”).Page(“Page”).WebRadioGroup(obj_Desc).set “Test” ‘Refers to the radio button
But
if we use WebElement object for the description then we must define the
“index” property because for a webelement the current description would
return two objects.
Hierarchy of test description:
When
using programmatic descriptions from a specific point within a test
object hierarchy, you must continue to use programmatic descriptions
from
that point onward within the same statement. If you specify a test
object by its object repository name after other objects in the
hierarchy have
been described using programmatic descriptions, QuickTest cannot identify the object.
For
example, you can use Browser(Desc1).Page(Desc1).Link(desc3), since it
uses programmatic descriptions throughout the entire test object
hierarchy.
You can also use
Browser("Index").Page(Desc1).Link(desc3), since it uses programmatic
descriptions from a certain point in the description (starting
from the Page object description).
However,
you cannot use Browser(Desc1).Page(Desc1).Link("Example1"), since it
uses programmatic descriptions for the Browser and Page objects but
then
attempts to use an object repository name for the Link test object
(QuickTest tries to locate the Link object based on its name, but cannot
locate it in the repository because the parent objects were specified using programmatic descriptions).
Getting Child Object:
We
can use description object to get all the objects on the page that
matches that specific description. Suppose we have to check all the
checkboxes present on a web page. So we will first create an object
description for a checkboxe and then get all the checkboxes from the
page
Dim obj_ChkDesc
Set obj_ChkDesc=Description.Create
obj_ChkDesc(“html tag”).value = “INPUT”
obj_ChkDesc(“type”).value = “checkbox”
Dim allCheckboxes, singleCheckBox
Set allCheckboxes = Browse(“Browser”).Page(“Page”).ChildObjects(obj_ChkDesc)
For each singleCheckBox in allCheckboxes
singleCheckBox.Set “ON”
Next
The
above code will check all the check boxes present on the page. To get
all the child objects we need to specify an object description i.e. we
can’t use the string arguments that will be discussed later in the 2nd
way of using the programming description.
Possible Operation on Description Object
Consider the below code for all the solutions
Dim obj_ChkDesc
Set obj_ChkDesc=Description.Create
obj_ChkDesc(“html tag”).value = “INPUT”
obj_ChkDesc(“type”).value = “checkbox”
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