Asp Forum - Watir, XML, - comp.lang.ruby

Espen Falkevik

6/16/2005 1:58:00 PM

I use the Watir extension to generate automated test
for web pages. To control the test results I retrieve
information from the same web page, but I get the
information from a XML-file.

I use the REXML extension, and when the XML file is
saved on my computer I can retrieve the values from it
using XPath.

How can I get the values from the XML-file, so that I
can compare it with the value I set?

Code:
require 'watir'
require 'rexml/document'
include REXML

ie = Watir::IE.start("http://x.x.x.x/site...)
# ie.show_all_objects
# change one value in the dropdown list
ie.select_list(:name,
"/Configuration/Audio/Inputs/Headset/Level").select_value("7")
puts "Value changed"

#saves
ie.link(:id, "").fire_event("onclick")

# open another browser and get's the xml-file
ie2 =
Watir::IE.start("http://10.47.11.217/getxml?location=/Configuration/Audio/Outputs/Headset/L...)
doc = ie2.document()

#try to use XPath to retrieve the value
node =XPath.first( doc,
"*/Configuration/Audio/Outputs/Headset/Level").get_text.value

The last line gives an error in the xpath_parser
(method_missing)

Hope someone can help me
-espen-

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3 Answers

james_b

6/16/2005 3:27:00 PM

Espen Falkevik wrote:
> ...
> # open another browser and get's the xml-file
> ie2 =
> Watir::IE.start("http://10.47.11.217/getxml?location=/Configuration/Audio/Outputs/Headset/L...)
> doc = ie2.document()

What sort of object are you expecting ie2.document() to return?

The call to XPath.first expects a REXML Document object; the WATIR docs
really don't say much on this (it only says that document() returns the
current document. )

But grepping the WATIR source code does not show any references to
REXML, so it appears you'll need to first convert the IE document or
content to a REXML Document object.

Calling ie2.html gets you the DOM rendering of the document HTML; it's
*not* the same as the HTML sent to the browser. If it is not already
XML (and imagine it is not) you'll need to fix it up. Take a look at
Michael Neumann's Mechanize library for some ways to do this. His code
fetches HTML pages and exposes the content via a nice API over an REXML
document.

http://rubyforge.org/pr...

James
--

http://www.ru... - The Ruby Documentation Site
http://www.r... - News, Articles, and Listings for Ruby & XML
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Espen Falkevik

6/17/2005 8:15:00 AM

Hi
I looked at this project, but I can't seem to find the
examples/code that can help me...
Can anyone tell me how to fetch the HTML code and
convert it into a REXML document?

-Espen-

--- James Britt <james_b@neurogami.com> wrote:

> Espen Falkevik wrote:
> > ...
> > # open another browser and get's the xml-file
> > ie2 =
> >
>
Watir::IE.start("http://10.47.11.217/getxml?location=/Configuration/Audio/Outputs/Headset/L...)
> > doc = ie2.document()
>
>
> What sort of object are you expecting ie2.document()
> to return?
>
> The call to XPath.first expects a REXML Document
> object; the WATIR docs
> really don't say much on this (it only says that
> document() returns the
> current document. )
>
> But grepping the WATIR source code does not show any
> references to
> REXML, so it appears you'll need to first convert
> the IE document or
> content to a REXML Document object.
>
> Calling ie2.html gets you the DOM rendering of the
> document HTML; it's
> *not* the same as the HTML sent to the browser. If
> it is not already
> XML (and imagine it is not) you'll need to fix it
> up. Take a look at
> Michael Neumann's Mechanize library for some ways to
> do this. His code
> fetches HTML pages and exposes the content via a
> nice API over an REXML
> document.
>
> http://rubyforge.org/pr...
>
>
>
> James
> --
>
> http://www.ru... - The Ruby Documentation
> Site
> http://www.r... - News, Articles, and
> Listings for Ruby & XML
> http://www.rub... - The Ruby Store for Ruby
> Stuff
> http://www.jame... - Playing with Better
> Toys
>
>

___________________________________________________________

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___________________________________________________________
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james_b

6/17/2005 2:04:00 PM

Espen Falkevik wrote:
> Hi
> I looked at this project, but I can't seem to find the
> examples/code that can help me...
> Can anyone tell me how to fetch the HTML code and
> convert it into a REXML document?

The project is Mechanize (though it is listed on the same main page as
the Wee project; really should get its own page, Michael!).

You can install Mechanize using rubygems.

This example logs into rubyforge.org, using values passed at the command
line:

require 'mechanize'

agent = WWW::Mechanize.new {|a| a.log = Logger.new(STDERR) }
page = agent.get('http://rubyforge...)
link = page.links.find {|l| l.node.text =~ /Log In/ }
page = agent.click(link)
form = page.forms[1]
form.fields.find {|f| f.name == 'form_loginname'}.value = ARGV[0]
form.fields.find {|f| f.name == 'form_pw'}.value = ARGV[1]
page = agent.submit(form, form.buttons.first)

puts page.root.class

img_alt = REXML::XPath.first( page.root, "//img" ).attributes[ 'alt' ]

p img_alt

The 'root' method of the Page instance returns a REXML Document.

James Britt
--

http://www.ru... - The Ruby Documentation Site
http://www.r... - News, Articles, and Listings for Ruby & XML
http://www.rub... - The Ruby Store for Ruby Stuff
http://www.jame... - Playing with Better Toys

comp.lang.ruby

Watir, XML,

Espen Falkevik

james_b

Espen Falkevik

james_b

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