Question { LG Soft, 31059 }
How many types of Parameters are available in QTP? and Pls
Explain with example.
Answer
Parameterization
A parameter is a variable that is assigned a value from an
external data source or generator.
You can parameterize values in steps and checkpoints in your
test or component. You can also parameterize the values of
action parameters.
You can use the parameter feature in QuickTest to enhance
your test or component by parameterizing the values that it
uses.
If you wish to parameterize the same value in several steps
in your test or component, you may want to consider using
the Data Driver rather than adding parameters manually.
There are four types of parameters:
Test, action or component parameters enable you to
use values passed from your test or component, or values
from other actions in your test.
In order to use a value within a specific action, you
must pass the value down through the action hierarchy of
your test to the required action. You can then use that
parameter value to parameterize a step in your test or
component.
For example, suppose that you want to parameterize a
step in Action3 using a value that is passed into your test
from the external application that runs (calls) your test.
You can pass the value from the test level to Action1 (a
top-level action) to Action3 (a child action of Action1),
and then parameterize the required step using this Action
input parameter value (that was passed through from the
external application).
Data Table parameters enable you to create a
data-driven test (or action) that runs several times using
the data you supply. In each repetition, or iteration,
QuickTest uses a different value from the Data Table.
For example, suppose your application or Web site
includes a feature that enables users to search for contact
information from a membership database. When the user enters
a member’s name, the member’s contact information is
displayed, together with a button labelled View
’s
Picture, where is the name of the member. You can
parameterize the name property of the button so that during
each iteration of the run session, QuickTest can identify
the different picture buttons.
Environment variable parameters enable you to use
variable values from other sources during the run session.
These may be values you supply, or values that QuickTest
generates for you based on conditions and options you choose.
For example, you can have QuickTest read all the values
for filling in a Web form from an external file, or you can
use one of QuickTest’s built-in environment variables to
insert current information about the machine running the
test or component.
Random number parameters enable you to insert random
numbers as values in your test or component. For example, to
check how your application handles small and large ticket
orders, you can have QuickTest generate a random number and
insert it in a number of tickets edit field.