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QTP Descriptive Programming

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DP 101 in 60 simple slides What is DP? DP stands for Descriptive Programming But what IS DP? I t’s a cool way to work without QTP’s Object-Repository (OR)…
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  • Added: May, 12th 2011
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  • Pages: 60
  • Tags: dp, quicktest, vbscript, qtp, descriptive, programming, 60, prg, qtp descriptive programming, in, slides, simple, test, descp, 1, 101, program, qtp decriptive programming, des, dp qtp
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Content Preview
    • DP 101 in 60 simple slides
    • What is DP?
    • DP stands for
    • Descriptive Programming
    • But what IS DP?
    • I t’s a cool way to work without QTP’s Object-Repository (OR)
    • Why would I want to do that?
    • Many reasons
    • You have to
    • Functions & Recovery scenarios work with different actions
    • Different actions = Different ORs
  1. Do I know you? Can’t be sure…
    • You have to
    • Can’t record certain objects
    • Auto-hide panels
    • Objects with changing hierarchies
    • Nested inner-objects, Sub menus
  2. Hold still, damnit! Even when you think you got it, all the properties turn out null
    • Simplicity
    • Why kill a fly with an atom bomb?
    • No need to use the OR for every one-time click button in the application
    • And,
    • You can do VERY cool things with DP
    • OK, bring it on
    • First, we need to better understand the Object Repository
    • What the OR is
    • How does the OR work
    • I thought DP is all about NOT using the OR…
    • Well, yes, but under the hood, DP & the OR work the same way
    • To understand the OR, is to understand DP
    • What is the OR?
    • A mysterious beast that records objects, in order to use them later
    • What is to record an object?
    • Write down how to identify it
    • Who are you?
    = How can I identify you?
    • Identification is done with
    • properties and values
    • Who are you?
    = Your height = 400 Your title = “NotePad” You are visible (=True)
    • So, What IS the OR?
    • Collections of properties & corresponding values
    • Each collection represents an object
    • No mysterious beast here
    • OK, So what IS DP?
    • DP is a way for specifying the properties & values without using the OR interface
    • No mysterious beast here, either
    • OK, I get it, there’s nothing more than properties and values
    • Can we get on with it?
    • How do I actually use DP?
    • There are two ways
    • 1
    • Throw the properties and values straight into a command
  3. It’s the good old syntax you know, except the string between the () is not the OR name. It’s the property:=value identification string
    • That’s kinda restrictive
    • What if I want to use multiple identification properties?
    • No problem:
    • VBWindow(“height:=400”, “title:=New Document”).Maximize
    • You can use as many properties as you like
    • All fine and well, but what if I want to use regular expressions?
    • No problem:
    • VBWindow(“title:=.*Document.*”).Maximize
    • ID strings are automatically interpreted as regular expressions
    • 2
    • Throw the properties & values into a description object, and throw IT into the command
  4. Here also, all the values are interpreted as regular expressions. To turn it off, use oDesc(“Property1”).RegularExpression = False
    • Method 1 is faster, best used for one or two commands, tops
    • When you want to execute multiple commands on an object, method 2 is a better choice by far
    • (allows one-time definitions, multiple uses)
    • You can use DP with OR
    • VBWindow(“OR”).VBButton(“text:=OK”).Click
    • Or (when oDesc is a description object):
    • VBWindow(“OR”).VBButton(oDesc).Click
    • But , you can only start from OR, and move to DP
    • So this will not work:
    • VBWindow(“title:=notgood”).VBButton(“clickme”).Click
    • And that’s about it
    • You can use each of the methods (or combine them), and you’ll be able to use objects that are not in the OR
    • You said I could do really cool stuff with DP!
    • Right you are
    • We’ll cover some of the more popular tricks and tips
    • These examples are only the tip of the iceberg. Play with them and see the true power of DP
    • The power of the string
    • DP is nothing more than simple strings
    • We can do such interesting things with strings…
    • The power of the string
    • Say we got an app with 4 checkboxes, check0, …, check4
    • We can set all of them with a nice simple loop:
    • The power of the string
    • Very complex identification tasks can be done via strings manipulation
    • Try different variations for yourself
    • Solving double objects
    • When QTP finds two object which match the same description, it freezes
    • This kinda sucks
  5. ?
    • DP has a magic property: “index”, which allows us to tell the double objects apart
    • Index is a zero-based counter
  6. All is well
    • Getting objects collections
    • This feature is so cool, deserves a title on its own
    • THE coolest thing you can do with DP, is to get a collection of all the objects that math an identification
  7. I don’t know who you are, or how many are you, but I want to mark all of you! Regular DP won’t help - Don’t know how to identify each checkbox
    • Object collections to the rescue!
    • Step 1: define a description object
    • Object collections to the rescue!
    • Step 2: get all matching objects
    • Object collections to the rescue!
    • Step 3: Use the collection
    • oChildren now holds a collection of all the checkboxes
    • So the first checkbox is accessed by: oChildren(0)
    • What can we do with it?
    • Anything we want
    • Example for common uses
    • Mark all Checkboxes
    • Mark all checkboxes with a certain property (even RO)
    • The possibilities are endless
    • Randomly input fields
    • Input only mandatory fields
    • Zero maintenance (new fields are added automatically, blind to UI changes)
    • Select object which match complex identification criteria (write custom if filters)
    • The list goes on and on…
    • OK, this is indeed cool, but it only gets us the inner controls of a given window.
    • Can we also get the application’s top level windows?
    • Sure
    • So, With DP we can work with no OR
    • Sometimes we have to use it
    • Other times it’s just more fun and useful
    • DP also throws in a lot of extras that make it an inseparable part of good QTP automation
    • Taste it, Experience it, Learn it, Use it, Love it
    • It’s worth your while
    • And that was DP in 60 slides

QTP Descriptive Programming



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