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Posted to user@jmeter.apache.org by David Luu <ma...@gmail.com> on 2011/10/25 22:27:34 UTC
Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Hi, just wanted to check to see if I misconfigured something or XPath
defined correctly. Here's the setup:
We have HTTP request sampler to hit user's shopping cart that returns HTML
in response. The HTML is dynamic based on what user already has in cart.
I want the JMeter test to remove items in cart, and we do that by fetching
the item ID stored in the links to then remove item by make HTTP POST in
another sampler with the item ID. The XPath is as follows:
//a[@class='removeItemLink']/@id
We identify the item ID as an attribute in links with class type
'removeItemLink'. Unfortunately, or to play it safe, we don't know if the
generated HTML always has same fixed pattern text of whether the class
attribute is always before or after the ID attribute, hence I chose to use
XPath extractor rather than a regular expression extractor to get the ID. ID
value is also dynamic and may not be fixed length.
I enabled Tidy with quiet mode. Later also enabled report errors show
warnings, and disabled quiet mode, those options didn't help. The UI and the
docs don't mention anything about settings to match once or match all, etc.
So believe matching number determined by the XPath expression.
used XPath extracted variable reference name ORDERITEMIDS
and then had a ForEach controller run a HTTP request sampler to POST to API
to remove items. But during execution, it only ran once, but it did work
correctly for the one item that it extracted. ForEach controller configured
as follows:
input var prefix = ORDERITEMIDS
output var name = returnVar
checked add "_" before number
and in HTTP sampler inside the foreach, reference variable as ${returnVar}
I tested the XPath with Firebug in Firefox and it matched all the items in
the cart unlike JMeter, and I know the basics of XPath, and that appears to
be the correct XPath.
So is this a bug with JMeter or am I doing something wrong? Or wrong XPath
somehow still?
Regards,
David
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by Deepak Shetty <sh...@gmail.com>.
just the defaults. (Technically you should use the jtidy that ships with
jmeter - but results should be fairly similar).
You can see warnings of the sort below which tell you why it is discarding
the divs/anchors
There are possibly some feature enhancements that you could request for in
Bugzilla
a. The ability to see the JTidy output. I recollect others have run into
similar problems as you have
b. The ability to use an XML tag balancer (e.g. tagsoup) instead of Tidy
(which will try to make your HTML valid) - You really only need to have some
sort of well formed XML for XPath to work so Tidy is overkill IMO.
regards
deepak
Warning: discarding unexpected </td> </td> [image: warn] 1002 Warning:
discarding unexpected </tr> </tr> [image: warn] 1003 Warning: discarding
unexpected <tr> <tr valign="top"> [image: warn] 1005 Warning: discarding
unexpected <td> <td> [image: warn] 1006 Warning: discarding unexpected
<div>; Warning: discarding unexpected </div> <div
class="sprite-arrow-icon"></div> [image: warn] 1007 Warning: discarding
unexpected <a>; Warning: discarding unexpected plain text; Warning:
discarding unexpected </a>; Warning: discarding unexpected <br> <a href="
http://www.beta.tinyprints.com/personalize/1413501/Grown-UpGlitz/saved/1c30eb971cd2629cc843a1a5e94eced7f231bceb.html">Edit</a><br
/> [image:
warn] 1008 Warning: discarding unexpected <div> <div
class="removeCartItem"> [image: warn] 1009 Warning: discarding unexpected
<div>; Warning: discarding unexpected </div> <div
class="sprite-remove-icon"></div> [image: warn] 1010 Warning: discarding
unexpected <a>; Warning: discarding unexpected plain text; Warning:
discarding unexpected <span>; Warning: discarding unexpected <div>; Warning:
discarding unexpected </div>; Warning: discarding unexpected plain text;
Warning: discarding unexpected </span>; Warning: discarding unexpected </a> <a
href="#" class="removeItemLink" id="7249683">Remove<span><div
class="sprite-tooltip-arrow"></div>Removing this item from your cart may
affect your discount.</span></a>
On Wed, Oct 26, 2011 at 3:25 AM, David Luu <ma...@gmail.com> wrote:
> Thanks Deepak, what option settings did you use for infohound.net/tidy? Or
> just the defaults?
>
> On Tue, Oct 25, 2011 at 4:48 PM, Deepak Shetty <sh...@gmail.com> wrote:
>
> > verified . If I run your page using http://infohound.net/tidy/ then if
> you
> > look at the "cleaned up" HTML it produces then there is only a single
> > anchor
> > with the class
> >
> > Technically these are issues that your test tool found for you :) . if
> you
> > can get the dev's to fix the HTML then the XPATH should start working
> > (note that XPath is memory intensive and slower as compared to a regex
> post
> > processor - thats fine for functional tests , not so much for load)
> >
> > regards
> > deepak
> >
> > On Tue, Oct 25, 2011 at 4:40 PM, David Luu <ma...@gmail.com> wrote:
> >
> > > Thanks for the help Deepak.
> > >
> > > On Tue, Oct 25, 2011 at 4:34 PM, Deepak Shetty <sh...@gmail.com>
> > wrote:
> > >
> > > > A cursory look shows a bunch of HTML errors including duplicate ids
> > that
> > > > might be impacting what TIDY does to your HTML (and the XPATH runs
> over
> > > the
> > > > TIDY).
> > > > Will need to check
> > > >
> > > > right now it looks If you arent sure of the order then you can always
> > run
> > > > two regexes . If your text is always going to be remove then you can
> > use
> > > > that bit of information
> > > >
> > > > regards
> > > > deepak
> > > >
> > > >
> > > > On Tue, Oct 25, 2011 at 4:11 PM, David Luu <ma...@gmail.com>
> wrote:
> > > >
> > > > > Sorry, didn't know that. Here's the URL
> > > > > http://dlshare.s3.amazonaws.com/shoppingCart.txt
> > > > >
> > > > > On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com>
> > > > wrote:
> > > > >
> > > > > > hi
> > > > > > the mailing list rejects attachments. upload it somewhere and
> send
> > a
> > > > link
> > > > > >
> > > > > > regards
> > > > > > deepak
> > > > > >
> > > > > > On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com>
> > > wrote:
> > > > > >
> > > > > > > JMeter v2.5 on Windows
> > > > > > >
> > > > > > > Added debug sampler, it did indeed match one only (the first
> item
> > > in
> > > > > > > shopping list, top down order):
> > > > > > >
> > > > > > > ORDERITEMIDS=7249682
> > > > > > > ORDERITEMIDS_1=7249682
> > > > > > > ORDERITEMIDS_matchNr=1
> > > > > > >
> > > > > > > Attached is HTML from the HTTP sampler response of the shopping
> > > cart
> > > > > page
> > > > > > > for which we extract the data. I did a text search on
> > > > "removeItemLink"
> > > > > > and
> > > > > > > did get 3 entries for the link for 3 cart items.
> > > > > > >
> > > > > > > I also did a test replacing XPath extractor with regex
> extractor
> > > and
> > > > > used
> > > > > > > this pattern to do a global/multi match against:
> > > > > > >
> > > > > > > .+class="removeItemLink".+id="(\d+)".+
> > > > > > >
> > > > > > > granted if the HTML attribute order ever changed, it would
> break
> > > the
> > > > > > regex
> > > > > > > but wouldn't break XPath.
> > > > > > >
> > > > > > > In the replacement, I left everything else intact, and used
> same
> > > > > variable
> > > > > > > name for the cart items IDs. The regex version worked fine,
> > getting
> > > > all
> > > > > 3
> > > > > > > cart items.
> > > > > > >
> > > > > > > So there's no loop problem for sure. Seems to be an XPath
> > extractor
> > > > > > problem
> > > > > > > here.
> > > > > > >
> > > > > > > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <
> > shettyd@gmail.com>
> > > > > > wrote:
> > > > > > >
> > > > > > >> what version of Jmeter?
> > > > > > >> Dont go by Firebug it looks at the DOM whereas JMeter will
> have
> > to
> > > > > look
> > > > > > at
> > > > > > >> the source html .
> > > > > > >>
> > > > > > >> Add a Debug Sampler under your HTTP Sampler and also add a
> view
> > > > > results
> > > > > > >> tree
> > > > > > >> listener.
> > > > > > >> If your debug sampler shows your multiple values correctly the
> > > > problem
> > > > > > is
> > > > > > >> in
> > > > > > >> the loop
> > > > > > >>
> > > > > > >> If your debug sampler only shows a single value , then you
> need
> > to
> > > > > look
> > > > > > at
> > > > > > >> the HTML response (in view results tree listener) that your
> > xpath
> > > > > > >> extractor
> > > > > > >> is a child of and see if you have multiple nodes satisfying
> your
> > > > > > condition
> > > > > > >> or your HTML is different from what you expect.
> > > > > > >> If the HTML looks right , then upload a copy of the html and
> > send
> > > > the
> > > > > > link
> > > > > > >>
> > > > > > >> regards
> > > > > > >> deepak
> > > > > > >>
> > > > > > >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <
> mangaroo@gmail.com>
> > > > > wrote:
> > > > > > >>
> > > > > > >> > Hi, just wanted to check to see if I misconfigured something
> > or
> > > > > XPath
> > > > > > >> > defined correctly. Here's the setup:
> > > > > > >> >
> > > > > > >> > We have HTTP request sampler to hit user's shopping cart
> that
> > > > > returns
> > > > > > >> HTML
> > > > > > >> > in response. The HTML is dynamic based on what user already
> > has
> > > in
> > > > > > cart.
> > > > > > >> >
> > > > > > >> > I want the JMeter test to remove items in cart, and we do
> that
> > > by
> > > > > > >> fetching
> > > > > > >> > the item ID stored in the links to then remove item by make
> > HTTP
> > > > > POST
> > > > > > in
> > > > > > >> > another sampler with the item ID. The XPath is as follows:
> > > > > > >> >
> > > > > > >> > //a[@class='removeItemLink']/@id
> > > > > > >> >
> > > > > > >> > We identify the item ID as an attribute in links with class
> > type
> > > > > > >> > 'removeItemLink'. Unfortunately, or to play it safe, we
> don't
> > > know
> > > > > if
> > > > > > >> the
> > > > > > >> > generated HTML always has same fixed pattern text of whether
> > the
> > > > > class
> > > > > > >> > attribute is always before or after the ID attribute, hence
> I
> > > > chose
> > > > > to
> > > > > > >> use
> > > > > > >> > XPath extractor rather than a regular expression extractor
> to
> > > get
> > > > > the
> > > > > > >> ID.
> > > > > > >> > ID
> > > > > > >> > value is also dynamic and may not be fixed length.
> > > > > > >> >
> > > > > > >> > I enabled Tidy with quiet mode. Later also enabled report
> > errors
> > > > > show
> > > > > > >> > warnings, and disabled quiet mode, those options didn't
> help.
> > > The
> > > > UI
> > > > > > and
> > > > > > >> > the
> > > > > > >> > docs don't mention anything about settings to match once or
> > > match
> > > > > all,
> > > > > > >> etc.
> > > > > > >> > So believe matching number determined by the XPath
> expression.
> > > > > > >> >
> > > > > > >> > used XPath extracted variable reference name ORDERITEMIDS
> > > > > > >> >
> > > > > > >> > and then had a ForEach controller run a HTTP request sampler
> > to
> > > > POST
> > > > > > to
> > > > > > >> API
> > > > > > >> > to remove items. But during execution, it only ran once, but
> > it
> > > > did
> > > > > > work
> > > > > > >> > correctly for the one item that it extracted. ForEach
> > controller
> > > > > > >> configured
> > > > > > >> > as follows:
> > > > > > >> >
> > > > > > >> > input var prefix = ORDERITEMIDS
> > > > > > >> > output var name = returnVar
> > > > > > >> > checked add "_" before number
> > > > > > >> >
> > > > > > >> > and in HTTP sampler inside the foreach, reference variable
> as
> > > > > > >> ${returnVar}
> > > > > > >> >
> > > > > > >> > I tested the XPath with Firebug in Firefox and it matched
> all
> > > the
> > > > > > items
> > > > > > >> in
> > > > > > >> > the cart unlike JMeter, and I know the basics of XPath, and
> > that
> > > > > > appears
> > > > > > >> to
> > > > > > >> > be the correct XPath.
> > > > > > >> >
> > > > > > >> > So is this a bug with JMeter or am I doing something wrong?
> Or
> > > > wrong
> > > > > > >> XPath
> > > > > > >> > somehow still?
> > > > > > >> >
> > > > > > >> > Regards,
> > > > > > >> > David
> > > > > > >> >
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > ---------------------------------------------------------------------
> > > > > > > To unsubscribe, e-mail:
> > jmeter-user-unsubscribe@jakarta.apache.org
> > > > > > > For additional commands, e-mail:
> > > jmeter-user-help@jakarta.apache.org
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by David Luu <ma...@gmail.com>.
Thanks Deepak, what option settings did you use for infohound.net/tidy? Or
just the defaults?
On Tue, Oct 25, 2011 at 4:48 PM, Deepak Shetty <sh...@gmail.com> wrote:
> verified . If I run your page using http://infohound.net/tidy/ then if you
> look at the "cleaned up" HTML it produces then there is only a single
> anchor
> with the class
>
> Technically these are issues that your test tool found for you :) . if you
> can get the dev's to fix the HTML then the XPATH should start working
> (note that XPath is memory intensive and slower as compared to a regex post
> processor - thats fine for functional tests , not so much for load)
>
> regards
> deepak
>
> On Tue, Oct 25, 2011 at 4:40 PM, David Luu <ma...@gmail.com> wrote:
>
> > Thanks for the help Deepak.
> >
> > On Tue, Oct 25, 2011 at 4:34 PM, Deepak Shetty <sh...@gmail.com>
> wrote:
> >
> > > A cursory look shows a bunch of HTML errors including duplicate ids
> that
> > > might be impacting what TIDY does to your HTML (and the XPATH runs over
> > the
> > > TIDY).
> > > Will need to check
> > >
> > > right now it looks If you arent sure of the order then you can always
> run
> > > two regexes . If your text is always going to be remove then you can
> use
> > > that bit of information
> > >
> > > regards
> > > deepak
> > >
> > >
> > > On Tue, Oct 25, 2011 at 4:11 PM, David Luu <ma...@gmail.com> wrote:
> > >
> > > > Sorry, didn't know that. Here's the URL
> > > > http://dlshare.s3.amazonaws.com/shoppingCart.txt
> > > >
> > > > On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com>
> > > wrote:
> > > >
> > > > > hi
> > > > > the mailing list rejects attachments. upload it somewhere and send
> a
> > > link
> > > > >
> > > > > regards
> > > > > deepak
> > > > >
> > > > > On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com>
> > wrote:
> > > > >
> > > > > > JMeter v2.5 on Windows
> > > > > >
> > > > > > Added debug sampler, it did indeed match one only (the first item
> > in
> > > > > > shopping list, top down order):
> > > > > >
> > > > > > ORDERITEMIDS=7249682
> > > > > > ORDERITEMIDS_1=7249682
> > > > > > ORDERITEMIDS_matchNr=1
> > > > > >
> > > > > > Attached is HTML from the HTTP sampler response of the shopping
> > cart
> > > > page
> > > > > > for which we extract the data. I did a text search on
> > > "removeItemLink"
> > > > > and
> > > > > > did get 3 entries for the link for 3 cart items.
> > > > > >
> > > > > > I also did a test replacing XPath extractor with regex extractor
> > and
> > > > used
> > > > > > this pattern to do a global/multi match against:
> > > > > >
> > > > > > .+class="removeItemLink".+id="(\d+)".+
> > > > > >
> > > > > > granted if the HTML attribute order ever changed, it would break
> > the
> > > > > regex
> > > > > > but wouldn't break XPath.
> > > > > >
> > > > > > In the replacement, I left everything else intact, and used same
> > > > variable
> > > > > > name for the cart items IDs. The regex version worked fine,
> getting
> > > all
> > > > 3
> > > > > > cart items.
> > > > > >
> > > > > > So there's no loop problem for sure. Seems to be an XPath
> extractor
> > > > > problem
> > > > > > here.
> > > > > >
> > > > > > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <
> shettyd@gmail.com>
> > > > > wrote:
> > > > > >
> > > > > >> what version of Jmeter?
> > > > > >> Dont go by Firebug it looks at the DOM whereas JMeter will have
> to
> > > > look
> > > > > at
> > > > > >> the source html .
> > > > > >>
> > > > > >> Add a Debug Sampler under your HTTP Sampler and also add a view
> > > > results
> > > > > >> tree
> > > > > >> listener.
> > > > > >> If your debug sampler shows your multiple values correctly the
> > > problem
> > > > > is
> > > > > >> in
> > > > > >> the loop
> > > > > >>
> > > > > >> If your debug sampler only shows a single value , then you need
> to
> > > > look
> > > > > at
> > > > > >> the HTML response (in view results tree listener) that your
> xpath
> > > > > >> extractor
> > > > > >> is a child of and see if you have multiple nodes satisfying your
> > > > > condition
> > > > > >> or your HTML is different from what you expect.
> > > > > >> If the HTML looks right , then upload a copy of the html and
> send
> > > the
> > > > > link
> > > > > >>
> > > > > >> regards
> > > > > >> deepak
> > > > > >>
> > > > > >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com>
> > > > wrote:
> > > > > >>
> > > > > >> > Hi, just wanted to check to see if I misconfigured something
> or
> > > > XPath
> > > > > >> > defined correctly. Here's the setup:
> > > > > >> >
> > > > > >> > We have HTTP request sampler to hit user's shopping cart that
> > > > returns
> > > > > >> HTML
> > > > > >> > in response. The HTML is dynamic based on what user already
> has
> > in
> > > > > cart.
> > > > > >> >
> > > > > >> > I want the JMeter test to remove items in cart, and we do that
> > by
> > > > > >> fetching
> > > > > >> > the item ID stored in the links to then remove item by make
> HTTP
> > > > POST
> > > > > in
> > > > > >> > another sampler with the item ID. The XPath is as follows:
> > > > > >> >
> > > > > >> > //a[@class='removeItemLink']/@id
> > > > > >> >
> > > > > >> > We identify the item ID as an attribute in links with class
> type
> > > > > >> > 'removeItemLink'. Unfortunately, or to play it safe, we don't
> > know
> > > > if
> > > > > >> the
> > > > > >> > generated HTML always has same fixed pattern text of whether
> the
> > > > class
> > > > > >> > attribute is always before or after the ID attribute, hence I
> > > chose
> > > > to
> > > > > >> use
> > > > > >> > XPath extractor rather than a regular expression extractor to
> > get
> > > > the
> > > > > >> ID.
> > > > > >> > ID
> > > > > >> > value is also dynamic and may not be fixed length.
> > > > > >> >
> > > > > >> > I enabled Tidy with quiet mode. Later also enabled report
> errors
> > > > show
> > > > > >> > warnings, and disabled quiet mode, those options didn't help.
> > The
> > > UI
> > > > > and
> > > > > >> > the
> > > > > >> > docs don't mention anything about settings to match once or
> > match
> > > > all,
> > > > > >> etc.
> > > > > >> > So believe matching number determined by the XPath expression.
> > > > > >> >
> > > > > >> > used XPath extracted variable reference name ORDERITEMIDS
> > > > > >> >
> > > > > >> > and then had a ForEach controller run a HTTP request sampler
> to
> > > POST
> > > > > to
> > > > > >> API
> > > > > >> > to remove items. But during execution, it only ran once, but
> it
> > > did
> > > > > work
> > > > > >> > correctly for the one item that it extracted. ForEach
> controller
> > > > > >> configured
> > > > > >> > as follows:
> > > > > >> >
> > > > > >> > input var prefix = ORDERITEMIDS
> > > > > >> > output var name = returnVar
> > > > > >> > checked add "_" before number
> > > > > >> >
> > > > > >> > and in HTTP sampler inside the foreach, reference variable as
> > > > > >> ${returnVar}
> > > > > >> >
> > > > > >> > I tested the XPath with Firebug in Firefox and it matched all
> > the
> > > > > items
> > > > > >> in
> > > > > >> > the cart unlike JMeter, and I know the basics of XPath, and
> that
> > > > > appears
> > > > > >> to
> > > > > >> > be the correct XPath.
> > > > > >> >
> > > > > >> > So is this a bug with JMeter or am I doing something wrong? Or
> > > wrong
> > > > > >> XPath
> > > > > >> > somehow still?
> > > > > >> >
> > > > > >> > Regards,
> > > > > >> > David
> > > > > >> >
> > > > > >>
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > ---------------------------------------------------------------------
> > > > > > To unsubscribe, e-mail:
> jmeter-user-unsubscribe@jakarta.apache.org
> > > > > > For additional commands, e-mail:
> > jmeter-user-help@jakarta.apache.org
> > > > > >
> > > > >
> > > >
> > >
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by Deepak Shetty <sh...@gmail.com>.
verified . If I run your page using http://infohound.net/tidy/ then if you
look at the "cleaned up" HTML it produces then there is only a single anchor
with the class
Technically these are issues that your test tool found for you :) . if you
can get the dev's to fix the HTML then the XPATH should start working
(note that XPath is memory intensive and slower as compared to a regex post
processor - thats fine for functional tests , not so much for load)
regards
deepak
On Tue, Oct 25, 2011 at 4:40 PM, David Luu <ma...@gmail.com> wrote:
> Thanks for the help Deepak.
>
> On Tue, Oct 25, 2011 at 4:34 PM, Deepak Shetty <sh...@gmail.com> wrote:
>
> > A cursory look shows a bunch of HTML errors including duplicate ids that
> > might be impacting what TIDY does to your HTML (and the XPATH runs over
> the
> > TIDY).
> > Will need to check
> >
> > right now it looks If you arent sure of the order then you can always run
> > two regexes . If your text is always going to be remove then you can use
> > that bit of information
> >
> > regards
> > deepak
> >
> >
> > On Tue, Oct 25, 2011 at 4:11 PM, David Luu <ma...@gmail.com> wrote:
> >
> > > Sorry, didn't know that. Here's the URL
> > > http://dlshare.s3.amazonaws.com/shoppingCart.txt
> > >
> > > On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com>
> > wrote:
> > >
> > > > hi
> > > > the mailing list rejects attachments. upload it somewhere and send a
> > link
> > > >
> > > > regards
> > > > deepak
> > > >
> > > > On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com>
> wrote:
> > > >
> > > > > JMeter v2.5 on Windows
> > > > >
> > > > > Added debug sampler, it did indeed match one only (the first item
> in
> > > > > shopping list, top down order):
> > > > >
> > > > > ORDERITEMIDS=7249682
> > > > > ORDERITEMIDS_1=7249682
> > > > > ORDERITEMIDS_matchNr=1
> > > > >
> > > > > Attached is HTML from the HTTP sampler response of the shopping
> cart
> > > page
> > > > > for which we extract the data. I did a text search on
> > "removeItemLink"
> > > > and
> > > > > did get 3 entries for the link for 3 cart items.
> > > > >
> > > > > I also did a test replacing XPath extractor with regex extractor
> and
> > > used
> > > > > this pattern to do a global/multi match against:
> > > > >
> > > > > .+class="removeItemLink".+id="(\d+)".+
> > > > >
> > > > > granted if the HTML attribute order ever changed, it would break
> the
> > > > regex
> > > > > but wouldn't break XPath.
> > > > >
> > > > > In the replacement, I left everything else intact, and used same
> > > variable
> > > > > name for the cart items IDs. The regex version worked fine, getting
> > all
> > > 3
> > > > > cart items.
> > > > >
> > > > > So there's no loop problem for sure. Seems to be an XPath extractor
> > > > problem
> > > > > here.
> > > > >
> > > > > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com>
> > > > wrote:
> > > > >
> > > > >> what version of Jmeter?
> > > > >> Dont go by Firebug it looks at the DOM whereas JMeter will have to
> > > look
> > > > at
> > > > >> the source html .
> > > > >>
> > > > >> Add a Debug Sampler under your HTTP Sampler and also add a view
> > > results
> > > > >> tree
> > > > >> listener.
> > > > >> If your debug sampler shows your multiple values correctly the
> > problem
> > > > is
> > > > >> in
> > > > >> the loop
> > > > >>
> > > > >> If your debug sampler only shows a single value , then you need to
> > > look
> > > > at
> > > > >> the HTML response (in view results tree listener) that your xpath
> > > > >> extractor
> > > > >> is a child of and see if you have multiple nodes satisfying your
> > > > condition
> > > > >> or your HTML is different from what you expect.
> > > > >> If the HTML looks right , then upload a copy of the html and send
> > the
> > > > link
> > > > >>
> > > > >> regards
> > > > >> deepak
> > > > >>
> > > > >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com>
> > > wrote:
> > > > >>
> > > > >> > Hi, just wanted to check to see if I misconfigured something or
> > > XPath
> > > > >> > defined correctly. Here's the setup:
> > > > >> >
> > > > >> > We have HTTP request sampler to hit user's shopping cart that
> > > returns
> > > > >> HTML
> > > > >> > in response. The HTML is dynamic based on what user already has
> in
> > > > cart.
> > > > >> >
> > > > >> > I want the JMeter test to remove items in cart, and we do that
> by
> > > > >> fetching
> > > > >> > the item ID stored in the links to then remove item by make HTTP
> > > POST
> > > > in
> > > > >> > another sampler with the item ID. The XPath is as follows:
> > > > >> >
> > > > >> > //a[@class='removeItemLink']/@id
> > > > >> >
> > > > >> > We identify the item ID as an attribute in links with class type
> > > > >> > 'removeItemLink'. Unfortunately, or to play it safe, we don't
> know
> > > if
> > > > >> the
> > > > >> > generated HTML always has same fixed pattern text of whether the
> > > class
> > > > >> > attribute is always before or after the ID attribute, hence I
> > chose
> > > to
> > > > >> use
> > > > >> > XPath extractor rather than a regular expression extractor to
> get
> > > the
> > > > >> ID.
> > > > >> > ID
> > > > >> > value is also dynamic and may not be fixed length.
> > > > >> >
> > > > >> > I enabled Tidy with quiet mode. Later also enabled report errors
> > > show
> > > > >> > warnings, and disabled quiet mode, those options didn't help.
> The
> > UI
> > > > and
> > > > >> > the
> > > > >> > docs don't mention anything about settings to match once or
> match
> > > all,
> > > > >> etc.
> > > > >> > So believe matching number determined by the XPath expression.
> > > > >> >
> > > > >> > used XPath extracted variable reference name ORDERITEMIDS
> > > > >> >
> > > > >> > and then had a ForEach controller run a HTTP request sampler to
> > POST
> > > > to
> > > > >> API
> > > > >> > to remove items. But during execution, it only ran once, but it
> > did
> > > > work
> > > > >> > correctly for the one item that it extracted. ForEach controller
> > > > >> configured
> > > > >> > as follows:
> > > > >> >
> > > > >> > input var prefix = ORDERITEMIDS
> > > > >> > output var name = returnVar
> > > > >> > checked add "_" before number
> > > > >> >
> > > > >> > and in HTTP sampler inside the foreach, reference variable as
> > > > >> ${returnVar}
> > > > >> >
> > > > >> > I tested the XPath with Firebug in Firefox and it matched all
> the
> > > > items
> > > > >> in
> > > > >> > the cart unlike JMeter, and I know the basics of XPath, and that
> > > > appears
> > > > >> to
> > > > >> > be the correct XPath.
> > > > >> >
> > > > >> > So is this a bug with JMeter or am I doing something wrong? Or
> > wrong
> > > > >> XPath
> > > > >> > somehow still?
> > > > >> >
> > > > >> > Regards,
> > > > >> > David
> > > > >> >
> > > > >>
> > > > >
> > > > >
> > > > >
> > > > >
> ---------------------------------------------------------------------
> > > > > To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> > > > > For additional commands, e-mail:
> jmeter-user-help@jakarta.apache.org
> > > > >
> > > >
> > >
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by David Luu <ma...@gmail.com>.
Thanks for the help Deepak.
On Tue, Oct 25, 2011 at 4:34 PM, Deepak Shetty <sh...@gmail.com> wrote:
> A cursory look shows a bunch of HTML errors including duplicate ids that
> might be impacting what TIDY does to your HTML (and the XPATH runs over the
> TIDY).
> Will need to check
>
> right now it looks If you arent sure of the order then you can always run
> two regexes . If your text is always going to be remove then you can use
> that bit of information
>
> regards
> deepak
>
>
> On Tue, Oct 25, 2011 at 4:11 PM, David Luu <ma...@gmail.com> wrote:
>
> > Sorry, didn't know that. Here's the URL
> > http://dlshare.s3.amazonaws.com/shoppingCart.txt
> >
> > On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com>
> wrote:
> >
> > > hi
> > > the mailing list rejects attachments. upload it somewhere and send a
> link
> > >
> > > regards
> > > deepak
> > >
> > > On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com> wrote:
> > >
> > > > JMeter v2.5 on Windows
> > > >
> > > > Added debug sampler, it did indeed match one only (the first item in
> > > > shopping list, top down order):
> > > >
> > > > ORDERITEMIDS=7249682
> > > > ORDERITEMIDS_1=7249682
> > > > ORDERITEMIDS_matchNr=1
> > > >
> > > > Attached is HTML from the HTTP sampler response of the shopping cart
> > page
> > > > for which we extract the data. I did a text search on
> "removeItemLink"
> > > and
> > > > did get 3 entries for the link for 3 cart items.
> > > >
> > > > I also did a test replacing XPath extractor with regex extractor and
> > used
> > > > this pattern to do a global/multi match against:
> > > >
> > > > .+class="removeItemLink".+id="(\d+)".+
> > > >
> > > > granted if the HTML attribute order ever changed, it would break the
> > > regex
> > > > but wouldn't break XPath.
> > > >
> > > > In the replacement, I left everything else intact, and used same
> > variable
> > > > name for the cart items IDs. The regex version worked fine, getting
> all
> > 3
> > > > cart items.
> > > >
> > > > So there's no loop problem for sure. Seems to be an XPath extractor
> > > problem
> > > > here.
> > > >
> > > > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com>
> > > wrote:
> > > >
> > > >> what version of Jmeter?
> > > >> Dont go by Firebug it looks at the DOM whereas JMeter will have to
> > look
> > > at
> > > >> the source html .
> > > >>
> > > >> Add a Debug Sampler under your HTTP Sampler and also add a view
> > results
> > > >> tree
> > > >> listener.
> > > >> If your debug sampler shows your multiple values correctly the
> problem
> > > is
> > > >> in
> > > >> the loop
> > > >>
> > > >> If your debug sampler only shows a single value , then you need to
> > look
> > > at
> > > >> the HTML response (in view results tree listener) that your xpath
> > > >> extractor
> > > >> is a child of and see if you have multiple nodes satisfying your
> > > condition
> > > >> or your HTML is different from what you expect.
> > > >> If the HTML looks right , then upload a copy of the html and send
> the
> > > link
> > > >>
> > > >> regards
> > > >> deepak
> > > >>
> > > >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com>
> > wrote:
> > > >>
> > > >> > Hi, just wanted to check to see if I misconfigured something or
> > XPath
> > > >> > defined correctly. Here's the setup:
> > > >> >
> > > >> > We have HTTP request sampler to hit user's shopping cart that
> > returns
> > > >> HTML
> > > >> > in response. The HTML is dynamic based on what user already has in
> > > cart.
> > > >> >
> > > >> > I want the JMeter test to remove items in cart, and we do that by
> > > >> fetching
> > > >> > the item ID stored in the links to then remove item by make HTTP
> > POST
> > > in
> > > >> > another sampler with the item ID. The XPath is as follows:
> > > >> >
> > > >> > //a[@class='removeItemLink']/@id
> > > >> >
> > > >> > We identify the item ID as an attribute in links with class type
> > > >> > 'removeItemLink'. Unfortunately, or to play it safe, we don't know
> > if
> > > >> the
> > > >> > generated HTML always has same fixed pattern text of whether the
> > class
> > > >> > attribute is always before or after the ID attribute, hence I
> chose
> > to
> > > >> use
> > > >> > XPath extractor rather than a regular expression extractor to get
> > the
> > > >> ID.
> > > >> > ID
> > > >> > value is also dynamic and may not be fixed length.
> > > >> >
> > > >> > I enabled Tidy with quiet mode. Later also enabled report errors
> > show
> > > >> > warnings, and disabled quiet mode, those options didn't help. The
> UI
> > > and
> > > >> > the
> > > >> > docs don't mention anything about settings to match once or match
> > all,
> > > >> etc.
> > > >> > So believe matching number determined by the XPath expression.
> > > >> >
> > > >> > used XPath extracted variable reference name ORDERITEMIDS
> > > >> >
> > > >> > and then had a ForEach controller run a HTTP request sampler to
> POST
> > > to
> > > >> API
> > > >> > to remove items. But during execution, it only ran once, but it
> did
> > > work
> > > >> > correctly for the one item that it extracted. ForEach controller
> > > >> configured
> > > >> > as follows:
> > > >> >
> > > >> > input var prefix = ORDERITEMIDS
> > > >> > output var name = returnVar
> > > >> > checked add "_" before number
> > > >> >
> > > >> > and in HTTP sampler inside the foreach, reference variable as
> > > >> ${returnVar}
> > > >> >
> > > >> > I tested the XPath with Firebug in Firefox and it matched all the
> > > items
> > > >> in
> > > >> > the cart unlike JMeter, and I know the basics of XPath, and that
> > > appears
> > > >> to
> > > >> > be the correct XPath.
> > > >> >
> > > >> > So is this a bug with JMeter or am I doing something wrong? Or
> wrong
> > > >> XPath
> > > >> > somehow still?
> > > >> >
> > > >> > Regards,
> > > >> > David
> > > >> >
> > > >>
> > > >
> > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> > > > For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
> > > >
> > >
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by Deepak Shetty <sh...@gmail.com>.
A cursory look shows a bunch of HTML errors including duplicate ids that
might be impacting what TIDY does to your HTML (and the XPATH runs over the
TIDY).
Will need to check
right now it looks If you arent sure of the order then you can always run
two regexes . If your text is always going to be remove then you can use
that bit of information
regards
deepak
On Tue, Oct 25, 2011 at 4:11 PM, David Luu <ma...@gmail.com> wrote:
> Sorry, didn't know that. Here's the URL
> http://dlshare.s3.amazonaws.com/shoppingCart.txt
>
> On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com> wrote:
>
> > hi
> > the mailing list rejects attachments. upload it somewhere and send a link
> >
> > regards
> > deepak
> >
> > On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com> wrote:
> >
> > > JMeter v2.5 on Windows
> > >
> > > Added debug sampler, it did indeed match one only (the first item in
> > > shopping list, top down order):
> > >
> > > ORDERITEMIDS=7249682
> > > ORDERITEMIDS_1=7249682
> > > ORDERITEMIDS_matchNr=1
> > >
> > > Attached is HTML from the HTTP sampler response of the shopping cart
> page
> > > for which we extract the data. I did a text search on "removeItemLink"
> > and
> > > did get 3 entries for the link for 3 cart items.
> > >
> > > I also did a test replacing XPath extractor with regex extractor and
> used
> > > this pattern to do a global/multi match against:
> > >
> > > .+class="removeItemLink".+id="(\d+)".+
> > >
> > > granted if the HTML attribute order ever changed, it would break the
> > regex
> > > but wouldn't break XPath.
> > >
> > > In the replacement, I left everything else intact, and used same
> variable
> > > name for the cart items IDs. The regex version worked fine, getting all
> 3
> > > cart items.
> > >
> > > So there's no loop problem for sure. Seems to be an XPath extractor
> > problem
> > > here.
> > >
> > > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com>
> > wrote:
> > >
> > >> what version of Jmeter?
> > >> Dont go by Firebug it looks at the DOM whereas JMeter will have to
> look
> > at
> > >> the source html .
> > >>
> > >> Add a Debug Sampler under your HTTP Sampler and also add a view
> results
> > >> tree
> > >> listener.
> > >> If your debug sampler shows your multiple values correctly the problem
> > is
> > >> in
> > >> the loop
> > >>
> > >> If your debug sampler only shows a single value , then you need to
> look
> > at
> > >> the HTML response (in view results tree listener) that your xpath
> > >> extractor
> > >> is a child of and see if you have multiple nodes satisfying your
> > condition
> > >> or your HTML is different from what you expect.
> > >> If the HTML looks right , then upload a copy of the html and send the
> > link
> > >>
> > >> regards
> > >> deepak
> > >>
> > >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com>
> wrote:
> > >>
> > >> > Hi, just wanted to check to see if I misconfigured something or
> XPath
> > >> > defined correctly. Here's the setup:
> > >> >
> > >> > We have HTTP request sampler to hit user's shopping cart that
> returns
> > >> HTML
> > >> > in response. The HTML is dynamic based on what user already has in
> > cart.
> > >> >
> > >> > I want the JMeter test to remove items in cart, and we do that by
> > >> fetching
> > >> > the item ID stored in the links to then remove item by make HTTP
> POST
> > in
> > >> > another sampler with the item ID. The XPath is as follows:
> > >> >
> > >> > //a[@class='removeItemLink']/@id
> > >> >
> > >> > We identify the item ID as an attribute in links with class type
> > >> > 'removeItemLink'. Unfortunately, or to play it safe, we don't know
> if
> > >> the
> > >> > generated HTML always has same fixed pattern text of whether the
> class
> > >> > attribute is always before or after the ID attribute, hence I chose
> to
> > >> use
> > >> > XPath extractor rather than a regular expression extractor to get
> the
> > >> ID.
> > >> > ID
> > >> > value is also dynamic and may not be fixed length.
> > >> >
> > >> > I enabled Tidy with quiet mode. Later also enabled report errors
> show
> > >> > warnings, and disabled quiet mode, those options didn't help. The UI
> > and
> > >> > the
> > >> > docs don't mention anything about settings to match once or match
> all,
> > >> etc.
> > >> > So believe matching number determined by the XPath expression.
> > >> >
> > >> > used XPath extracted variable reference name ORDERITEMIDS
> > >> >
> > >> > and then had a ForEach controller run a HTTP request sampler to POST
> > to
> > >> API
> > >> > to remove items. But during execution, it only ran once, but it did
> > work
> > >> > correctly for the one item that it extracted. ForEach controller
> > >> configured
> > >> > as follows:
> > >> >
> > >> > input var prefix = ORDERITEMIDS
> > >> > output var name = returnVar
> > >> > checked add "_" before number
> > >> >
> > >> > and in HTTP sampler inside the foreach, reference variable as
> > >> ${returnVar}
> > >> >
> > >> > I tested the XPath with Firebug in Firefox and it matched all the
> > items
> > >> in
> > >> > the cart unlike JMeter, and I know the basics of XPath, and that
> > appears
> > >> to
> > >> > be the correct XPath.
> > >> >
> > >> > So is this a bug with JMeter or am I doing something wrong? Or wrong
> > >> XPath
> > >> > somehow still?
> > >> >
> > >> > Regards,
> > >> > David
> > >> >
> > >>
> > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> > > For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
> > >
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by David Luu <ma...@gmail.com>.
Sorry, didn't know that. Here's the URL
http://dlshare.s3.amazonaws.com/shoppingCart.txt
On Tue, Oct 25, 2011 at 3:42 PM, Deepak Shetty <sh...@gmail.com> wrote:
> hi
> the mailing list rejects attachments. upload it somewhere and send a link
>
> regards
> deepak
>
> On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com> wrote:
>
> > JMeter v2.5 on Windows
> >
> > Added debug sampler, it did indeed match one only (the first item in
> > shopping list, top down order):
> >
> > ORDERITEMIDS=7249682
> > ORDERITEMIDS_1=7249682
> > ORDERITEMIDS_matchNr=1
> >
> > Attached is HTML from the HTTP sampler response of the shopping cart page
> > for which we extract the data. I did a text search on "removeItemLink"
> and
> > did get 3 entries for the link for 3 cart items.
> >
> > I also did a test replacing XPath extractor with regex extractor and used
> > this pattern to do a global/multi match against:
> >
> > .+class="removeItemLink".+id="(\d+)".+
> >
> > granted if the HTML attribute order ever changed, it would break the
> regex
> > but wouldn't break XPath.
> >
> > In the replacement, I left everything else intact, and used same variable
> > name for the cart items IDs. The regex version worked fine, getting all 3
> > cart items.
> >
> > So there's no loop problem for sure. Seems to be an XPath extractor
> problem
> > here.
> >
> > On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com>
> wrote:
> >
> >> what version of Jmeter?
> >> Dont go by Firebug it looks at the DOM whereas JMeter will have to look
> at
> >> the source html .
> >>
> >> Add a Debug Sampler under your HTTP Sampler and also add a view results
> >> tree
> >> listener.
> >> If your debug sampler shows your multiple values correctly the problem
> is
> >> in
> >> the loop
> >>
> >> If your debug sampler only shows a single value , then you need to look
> at
> >> the HTML response (in view results tree listener) that your xpath
> >> extractor
> >> is a child of and see if you have multiple nodes satisfying your
> condition
> >> or your HTML is different from what you expect.
> >> If the HTML looks right , then upload a copy of the html and send the
> link
> >>
> >> regards
> >> deepak
> >>
> >> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com> wrote:
> >>
> >> > Hi, just wanted to check to see if I misconfigured something or XPath
> >> > defined correctly. Here's the setup:
> >> >
> >> > We have HTTP request sampler to hit user's shopping cart that returns
> >> HTML
> >> > in response. The HTML is dynamic based on what user already has in
> cart.
> >> >
> >> > I want the JMeter test to remove items in cart, and we do that by
> >> fetching
> >> > the item ID stored in the links to then remove item by make HTTP POST
> in
> >> > another sampler with the item ID. The XPath is as follows:
> >> >
> >> > //a[@class='removeItemLink']/@id
> >> >
> >> > We identify the item ID as an attribute in links with class type
> >> > 'removeItemLink'. Unfortunately, or to play it safe, we don't know if
> >> the
> >> > generated HTML always has same fixed pattern text of whether the class
> >> > attribute is always before or after the ID attribute, hence I chose to
> >> use
> >> > XPath extractor rather than a regular expression extractor to get the
> >> ID.
> >> > ID
> >> > value is also dynamic and may not be fixed length.
> >> >
> >> > I enabled Tidy with quiet mode. Later also enabled report errors show
> >> > warnings, and disabled quiet mode, those options didn't help. The UI
> and
> >> > the
> >> > docs don't mention anything about settings to match once or match all,
> >> etc.
> >> > So believe matching number determined by the XPath expression.
> >> >
> >> > used XPath extracted variable reference name ORDERITEMIDS
> >> >
> >> > and then had a ForEach controller run a HTTP request sampler to POST
> to
> >> API
> >> > to remove items. But during execution, it only ran once, but it did
> work
> >> > correctly for the one item that it extracted. ForEach controller
> >> configured
> >> > as follows:
> >> >
> >> > input var prefix = ORDERITEMIDS
> >> > output var name = returnVar
> >> > checked add "_" before number
> >> >
> >> > and in HTTP sampler inside the foreach, reference variable as
> >> ${returnVar}
> >> >
> >> > I tested the XPath with Firebug in Firefox and it matched all the
> items
> >> in
> >> > the cart unlike JMeter, and I know the basics of XPath, and that
> appears
> >> to
> >> > be the correct XPath.
> >> >
> >> > So is this a bug with JMeter or am I doing something wrong? Or wrong
> >> XPath
> >> > somehow still?
> >> >
> >> > Regards,
> >> > David
> >> >
> >>
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by Deepak Shetty <sh...@gmail.com>.
hi
the mailing list rejects attachments. upload it somewhere and send a link
regards
deepak
On Tue, Oct 25, 2011 at 3:38 PM, David Luu <ma...@gmail.com> wrote:
> JMeter v2.5 on Windows
>
> Added debug sampler, it did indeed match one only (the first item in
> shopping list, top down order):
>
> ORDERITEMIDS=7249682
> ORDERITEMIDS_1=7249682
> ORDERITEMIDS_matchNr=1
>
> Attached is HTML from the HTTP sampler response of the shopping cart page
> for which we extract the data. I did a text search on "removeItemLink" and
> did get 3 entries for the link for 3 cart items.
>
> I also did a test replacing XPath extractor with regex extractor and used
> this pattern to do a global/multi match against:
>
> .+class="removeItemLink".+id="(\d+)".+
>
> granted if the HTML attribute order ever changed, it would break the regex
> but wouldn't break XPath.
>
> In the replacement, I left everything else intact, and used same variable
> name for the cart items IDs. The regex version worked fine, getting all 3
> cart items.
>
> So there's no loop problem for sure. Seems to be an XPath extractor problem
> here.
>
> On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com> wrote:
>
>> what version of Jmeter?
>> Dont go by Firebug it looks at the DOM whereas JMeter will have to look at
>> the source html .
>>
>> Add a Debug Sampler under your HTTP Sampler and also add a view results
>> tree
>> listener.
>> If your debug sampler shows your multiple values correctly the problem is
>> in
>> the loop
>>
>> If your debug sampler only shows a single value , then you need to look at
>> the HTML response (in view results tree listener) that your xpath
>> extractor
>> is a child of and see if you have multiple nodes satisfying your condition
>> or your HTML is different from what you expect.
>> If the HTML looks right , then upload a copy of the html and send the link
>>
>> regards
>> deepak
>>
>> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com> wrote:
>>
>> > Hi, just wanted to check to see if I misconfigured something or XPath
>> > defined correctly. Here's the setup:
>> >
>> > We have HTTP request sampler to hit user's shopping cart that returns
>> HTML
>> > in response. The HTML is dynamic based on what user already has in cart.
>> >
>> > I want the JMeter test to remove items in cart, and we do that by
>> fetching
>> > the item ID stored in the links to then remove item by make HTTP POST in
>> > another sampler with the item ID. The XPath is as follows:
>> >
>> > //a[@class='removeItemLink']/@id
>> >
>> > We identify the item ID as an attribute in links with class type
>> > 'removeItemLink'. Unfortunately, or to play it safe, we don't know if
>> the
>> > generated HTML always has same fixed pattern text of whether the class
>> > attribute is always before or after the ID attribute, hence I chose to
>> use
>> > XPath extractor rather than a regular expression extractor to get the
>> ID.
>> > ID
>> > value is also dynamic and may not be fixed length.
>> >
>> > I enabled Tidy with quiet mode. Later also enabled report errors show
>> > warnings, and disabled quiet mode, those options didn't help. The UI and
>> > the
>> > docs don't mention anything about settings to match once or match all,
>> etc.
>> > So believe matching number determined by the XPath expression.
>> >
>> > used XPath extracted variable reference name ORDERITEMIDS
>> >
>> > and then had a ForEach controller run a HTTP request sampler to POST to
>> API
>> > to remove items. But during execution, it only ran once, but it did work
>> > correctly for the one item that it extracted. ForEach controller
>> configured
>> > as follows:
>> >
>> > input var prefix = ORDERITEMIDS
>> > output var name = returnVar
>> > checked add "_" before number
>> >
>> > and in HTTP sampler inside the foreach, reference variable as
>> ${returnVar}
>> >
>> > I tested the XPath with Firebug in Firefox and it matched all the items
>> in
>> > the cart unlike JMeter, and I know the basics of XPath, and that appears
>> to
>> > be the correct XPath.
>> >
>> > So is this a bug with JMeter or am I doing something wrong? Or wrong
>> XPath
>> > somehow still?
>> >
>> > Regards,
>> > David
>> >
>>
>
>
>
> ---------------------------------------------------------------------
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> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by David Luu <ma...@gmail.com>.
JMeter v2.5 on Windows
Added debug sampler, it did indeed match one only (the first item in
shopping list, top down order):
ORDERITEMIDS=7249682
ORDERITEMIDS_1=7249682
ORDERITEMIDS_matchNr=1
Attached is HTML from the HTTP sampler response of the shopping cart page
for which we extract the data. I did a text search on "removeItemLink" and
did get 3 entries for the link for 3 cart items.
I also did a test replacing XPath extractor with regex extractor and used
this pattern to do a global/multi match against:
.+class="removeItemLink".+id="(\d+)".+
granted if the HTML attribute order ever changed, it would break the regex
but wouldn't break XPath.
In the replacement, I left everything else intact, and used same variable
name for the cart items IDs. The regex version worked fine, getting all 3
cart items.
So there's no loop problem for sure. Seems to be an XPath extractor problem
here.
On Tue, Oct 25, 2011 at 3:16 PM, Deepak Shetty <sh...@gmail.com> wrote:
> what version of Jmeter?
> Dont go by Firebug it looks at the DOM whereas JMeter will have to look at
> the source html .
>
> Add a Debug Sampler under your HTTP Sampler and also add a view results
> tree
> listener.
> If your debug sampler shows your multiple values correctly the problem is
> in
> the loop
>
> If your debug sampler only shows a single value , then you need to look at
> the HTML response (in view results tree listener) that your xpath extractor
> is a child of and see if you have multiple nodes satisfying your condition
> or your HTML is different from what you expect.
> If the HTML looks right , then upload a copy of the html and send the link
>
> regards
> deepak
>
> On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com> wrote:
>
> > Hi, just wanted to check to see if I misconfigured something or XPath
> > defined correctly. Here's the setup:
> >
> > We have HTTP request sampler to hit user's shopping cart that returns
> HTML
> > in response. The HTML is dynamic based on what user already has in cart.
> >
> > I want the JMeter test to remove items in cart, and we do that by
> fetching
> > the item ID stored in the links to then remove item by make HTTP POST in
> > another sampler with the item ID. The XPath is as follows:
> >
> > //a[@class='removeItemLink']/@id
> >
> > We identify the item ID as an attribute in links with class type
> > 'removeItemLink'. Unfortunately, or to play it safe, we don't know if the
> > generated HTML always has same fixed pattern text of whether the class
> > attribute is always before or after the ID attribute, hence I chose to
> use
> > XPath extractor rather than a regular expression extractor to get the ID.
> > ID
> > value is also dynamic and may not be fixed length.
> >
> > I enabled Tidy with quiet mode. Later also enabled report errors show
> > warnings, and disabled quiet mode, those options didn't help. The UI and
> > the
> > docs don't mention anything about settings to match once or match all,
> etc.
> > So believe matching number determined by the XPath expression.
> >
> > used XPath extracted variable reference name ORDERITEMIDS
> >
> > and then had a ForEach controller run a HTTP request sampler to POST to
> API
> > to remove items. But during execution, it only ran once, but it did work
> > correctly for the one item that it extracted. ForEach controller
> configured
> > as follows:
> >
> > input var prefix = ORDERITEMIDS
> > output var name = returnVar
> > checked add "_" before number
> >
> > and in HTTP sampler inside the foreach, reference variable as
> ${returnVar}
> >
> > I tested the XPath with Firebug in Firefox and it matched all the items
> in
> > the cart unlike JMeter, and I know the basics of XPath, and that appears
> to
> > be the correct XPath.
> >
> > So is this a bug with JMeter or am I doing something wrong? Or wrong
> XPath
> > somehow still?
> >
> > Regards,
> > David
> >
>
Re: Plan to use XPath Extractor to extract multiple matches but get
single match only during execution?
Posted by Deepak Shetty <sh...@gmail.com>.
what version of Jmeter?
Dont go by Firebug it looks at the DOM whereas JMeter will have to look at
the source html .
Add a Debug Sampler under your HTTP Sampler and also add a view results tree
listener.
If your debug sampler shows your multiple values correctly the problem is in
the loop
If your debug sampler only shows a single value , then you need to look at
the HTML response (in view results tree listener) that your xpath extractor
is a child of and see if you have multiple nodes satisfying your condition
or your HTML is different from what you expect.
If the HTML looks right , then upload a copy of the html and send the link
regards
deepak
On Tue, Oct 25, 2011 at 1:27 PM, David Luu <ma...@gmail.com> wrote:
> Hi, just wanted to check to see if I misconfigured something or XPath
> defined correctly. Here's the setup:
>
> We have HTTP request sampler to hit user's shopping cart that returns HTML
> in response. The HTML is dynamic based on what user already has in cart.
>
> I want the JMeter test to remove items in cart, and we do that by fetching
> the item ID stored in the links to then remove item by make HTTP POST in
> another sampler with the item ID. The XPath is as follows:
>
> //a[@class='removeItemLink']/@id
>
> We identify the item ID as an attribute in links with class type
> 'removeItemLink'. Unfortunately, or to play it safe, we don't know if the
> generated HTML always has same fixed pattern text of whether the class
> attribute is always before or after the ID attribute, hence I chose to use
> XPath extractor rather than a regular expression extractor to get the ID.
> ID
> value is also dynamic and may not be fixed length.
>
> I enabled Tidy with quiet mode. Later also enabled report errors show
> warnings, and disabled quiet mode, those options didn't help. The UI and
> the
> docs don't mention anything about settings to match once or match all, etc.
> So believe matching number determined by the XPath expression.
>
> used XPath extracted variable reference name ORDERITEMIDS
>
> and then had a ForEach controller run a HTTP request sampler to POST to API
> to remove items. But during execution, it only ran once, but it did work
> correctly for the one item that it extracted. ForEach controller configured
> as follows:
>
> input var prefix = ORDERITEMIDS
> output var name = returnVar
> checked add "_" before number
>
> and in HTTP sampler inside the foreach, reference variable as ${returnVar}
>
> I tested the XPath with Firebug in Firefox and it matched all the items in
> the cart unlike JMeter, and I know the basics of XPath, and that appears to
> be the correct XPath.
>
> So is this a bug with JMeter or am I doing something wrong? Or wrong XPath
> somehow still?
>
> Regards,
> David
>