XML Parsing in QTP using XMLUtil - A Simple ExampleXML parsing in QTP is not a very difficult concept rather it is the most easiest of concepts in QTP.

However, there are times when you have not worked on XML before and there is a task at hand and

you do not wish to spend time reading QTP Help or going on the web spending a lot of time. I am

showcasing a very simple XML structure and how to parse data out of it. There are a lot of examples

on the web but none of them is a full fledged one. It rather showcases a particular functionality and

never shows a complete solution from getting a XML loaded and finally extracting values from it.

Here, i assume that you have a basic understanding of XML schema and what you mean by extracting

data from it. The basic concept in QTP is to create an object of the XML data that you have at hand

either in the form of a explicit file stored at a location or the XML data in the form of string in a

variable.

Loading XML data from a File/URL

You can load an XML file in QTP which then gives you access to the entire XML structure of the file. You

can then use the XMLUtil functions on the XML data and get your desired task done. This is how we do

it -

Set xmlObj = XMLUtil.CreateXML()xmlObj.LoadFile("http://www.w3schools.com/xml/cd_catalog.xml")Print xmlObj.ToString()

OR

Set xmlObj = XMLUtil.CreateXML()xmlObj.LoadFile("C:\cd_catalog.xml")Print xmlObj.ToString()'Using a XML file stored on the hard drive

Loading XML data from a variable

It is handy sometimes, when you are testing a web application and have a chunk of XML data as a

result of a property of an object (like innerHTML, outerHTML, etc) and you need the dynamic data from

that XML to verify something. Here, you load the XML from a variable and then apply the XMlUtil

methods on it. This is how we do it -

Set xmlObj = XMLUtil.CreateXML()xmlData = "PUT YOUR XML DATA WITH ENTIRE STRUCTURE HERE"' xmlData will hold the entire content of the XML file xmlObj.Load(xmlData)Print xmlObj.ToString()

Parsing the XML

Once we have the XML data loaded with the XML object pointing to it, our job is very simple. We need

to navigate through the structure looking for the data we want. In this example we wish to retrieve all

the data related a particular CD in the CD Catalog. So what we do is that

we utilize the ChildElementsByPath(Path) method do retrieve the data from each element of the

XML. Here, "Path" is something common to the kind of path we specify in our PC for locating a

particular file. Here, each XML tag can be considered as a folder with the XML Element value as a file.

So the topmost folder becomes CATALOG, then comes CD, then (TITLE, ARTIST, COUNTRY, COMPANY,

PRICE,YEAR) become the individual folders with CD. So in case you wish to find the Title of a particular

CD, you use ChildElementsByPath("/CATALOG/CD/TITLE"). This will actually return a collection of

titles of all the Cds and you can iterate through each to get your desired CD title. A similar approach

may be employed for getting the other data like, artist, company, price and year. This is just a simple

example, there are a number of other XMl methods in QTP that can be used as well. Have a look at the

code below -

Set xmlObj = XMLUtil.CreateXML()

xmlObj.LoadFile("http://www.w3schools.com/xml/cd_catalog.xml")Print xmlObj.ToString()Print " ========================================================================= "

Set myCDTitle= xmlObj.ChildElementsByPath("/CATALOG/CD/TITLE")'Get the titlesSet myCDArtist = xmlObj.ChildElementsByPath("/CATALOG/CD/ARTIST")'Get the ArtistsSet myCDCountry = xmlObj.ChildElementsByPath("/CATALOG/CD/COUNTRY")'Get the CountrySet myCDPrice = xmlObj.ChildElementsByPath("/CATALOG/CD/PRICE")'Get the PricesSet myCDYear = xmlObj.ChildElementsByPath("/CATALOG/CD/YEAR")'Get the Year

'Now iterate through the collection to get the values For i = 1 to myCDTitle.Count Print myCDTitle.Item(i).Value() Print myCDArtist.Item(i).Value() Print myCDCountry.Item(i).Value() Print myCDPrice.Item(i).Value() Print myCDYear.Item(i).Value() Print " " Next

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5 comments:

Maria Mcclain said...

You have a very good blog that the main thing a lot of interesting and beautiful! hope u go

for this website to increase visitor.

July 16, 2010 4:24 AM

Sudhananda Reddy Devarapalli said...

coooll... the same way we can use to test the web services as well with out using Web

Services add in ...

July 24, 2010 11:13 PM

Rishi said...

Hi, nice blog!!! Can u pls tell me how to check if a node element is present in an xml file?

August 2, 2010 6:43 AM

Dipendra said...

Thanks for letting us know the concept, could you please help me to understand, How can

we validate the XML tags values are coming correct in Web Application page..

For Example: There are customer details like First Name, Last Name, Manager Name etc

which appear in front End and the data of customer details are coming from Different

Application through XML. I need to compare the data in XML tag with web application and

pass/fail the test case accordingly

October 19, 2010 12:00 AM

Anunay Kumar said...

@ Dipendra - I believe you can simple capture the object and check the "value" or

"innertext" property of that object with the data that you have on the xml. Ex - First Name is

a textbox object which will have the value or innertext property containing what is actually

getting displayed on the post. just compare this value with the xml data.

October 20, 2010 11:24 PM

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