October 4th, 2008 by
Yaron Assa
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VBScript’s lack of class inheritance can be quite problematic for those of us who are using Classes regularly throughout our scripts. The attached file provides a parser which enables you to effectively use class inheritance in VBScript by placeing ‘ ParentClassName comments within your classes. The mechanism will:
1. Enable inheritance from multiple parents (just use multiple lines with Inherit comments)
2. Copies Properties, Variables, Functions and methods from the parent class to the derived class.
3. In case the derived class already has a code segment with the same name, the copied code-segment is changed to MyBase_. Inner segment placements are updated accordingly.
4. Enables inheritance through multiple hierarchies (e.g. GrandParent->Parent->Child inheritance). Circular inheritance protection. The order of appearance in the files is irrelevant, the parser will make sure the parent classes are parsed before their derived classes.
5. The parser has a major downside – as the technique uses ExecuteGlobal to load the processed classes into QTP, you cannot debug the code in mid-run.
June 24th, 2008 by
Yaron Assa
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This QTip, by Benny Abergel, will allow you to automate most 64Bit .Net Applications with QTP, even though QTP cannot record 64Bit applications!
June 6th, 2008 by
Meir Bar-Tal
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Working with external function libraries (e.g., vbs files) is a common practice among advanced QTP practitioners. This feature of QTP enables developers to encapsulate functionality that needs to be reused in the form of functions, subroutines, and even classes. It is even possible to set the currently loaded function libraries as default, and hence every […]
May 30th, 2008 by
Meir Bar-Tal
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This short article complements a previous one I have published on how to Override the Object Exist Property. As previously indicated, one of the most powerful features QuickTest Professional (QTP) provides is the ability to override methods of object classes with custom functions tailored to serve specific purposes (Bar-Tal, 2008b). In this brief article we […]
May 18th, 2008 by
Meir Bar-Tal
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One of the most powerful features QuickTest Professional (QTP) provides is the ability to override methods of object classes with custom functions tailored to serve specific purposes. For example, the WebEdit.Set method might be expanded to first check if a popup message is open before or after (or both) the set operation took place. This […]
March 30th, 2008 by
Yaron Assa
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In a previous article, I’ve discussed (among other things) the possibility of adding COM objects to the QTP reserved objects pool, thereby enabling some limited sort of intellisense for them (i.e. Syntax auto-complete).
This is all very nice, but what happens when we want to do something similar with our custom classes and objects? It seems […]
March 30th, 2008 by
Yaron Assa
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Today we’re gonna look at QTP’s internal mechanism for creating singleton COM objects, called Reserved Objects; And we’ll see how Reserved Objects can be used to improved and simplify our scripts.
Well, that was a heavy title… let’s see if we can break it down:1. A COM object is any object you can create via CreateObject […]
March 30th, 2008 by
Yaron Assa
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Yesterday I was in for a very pleasant surprise - I’ve just installed Visual Studio 2008, and was working on a QTP test, when I’ve noticed a something strange with QTP’s Debug view.
Usually when you add a watch to an Object, QTP will present it as an enigmatic “<Object>”, with no further description. If you’re […]
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