How to use xpath extractor in Apache Jmeter? - xpath

I invoke a SOAP service and get a SOAP response XML along with some details on the top. When i use the xpath extractor i get an error message that content is not allowed in prolog.
How can i resolve this issue in jmeter and get the xpath working ?

That is a generic (and seemingly unhelpful) error message that the SAX XML parser throws when your input XML is not well formed - usually at the start of the document. Prolog is the first line with xml version info.
Check and validate that your response is well formed. It might be something simple like trimming the beginning characters of the string that you're attempting to parse.

Related

difficulty in handling correlation in jmeter

i have identified the dynamic values in my website which i am handling through "regular expression extractor" still when i run the website the login request fails and throw error as token not found. please help,i m struggling...[this image contain the regEx extractor part and the failed login request also][1]
We cannot help you without seeing the response (at least partial) which you're getting for the /-7 request containing this hidden input with the token, you can try locating it using "RegExp Tester" mode of the View Results Tree listener and see whether your regular expression matches something or not
One thing is obvious: using regular expressions for extracting data from HTML is not the best idea, I would recommend considering switching to CSS Selector Extractor instead:

How to write xpath assertion for the xml in Jmeter

I am using Jmeter to test the api transaction
Response:
<ProcessByAcctResult><Inquiry.IVR.OUT TraceId="1233"><ResponseCode>00</ResponseCode&gtgt;</Inquiry.IVR.OUT></ProcessByAcctResult>
My Response is given above..
I wanted to assert responseCode is 00 if not should make it fail on the performance test. How to write a xpath for this.. or else any other way also fine..
Currently i am storing the variable using Regex Extractor and REsponse Assertion to compare the value.. Any other better solution
What you provided is not a valid XML therefore you're only limited to Response Assertion configured like:
More information: Response Assertions in JMeter 3.2 - New and Improved
However if you're getting a real XML just not able to properly copy and paste it and your response actually looks like:
<ProcessByAcctResult>
<Inquiry.IVR.OUT TraceId="1233">
<ResponseCode>00</ResponseCode>
</Inquiry.IVR.OUT>
</ProcessByAcctResult>
Then you can use the following XPath Assertion configuration:

Response Assertion / Regex Extractor Not Working in JMeter

I'm trying to extract the CSRF token so I can log in, and be able to obtain cookies, but I'm not able to.
I'm able to get a 200 response code when accessing the URL that contains the CSRF token, and I'm able to see it on the browser and the console, but my response assertion is not able to assert anything regardless of me changing the apply to, field to test, and pattern matching rules sections. My regular expression extractor isn't able to get anything either. All the headers to get to the URL are there. Any suggestions?
Forgot to mention, I'm able to get it on one server that's exactly (or should be) exactly the same as this one...
EDIT:
I placed it under the HTTP Sampler that has that response, and here is an example of what I get for my response assertion. I've also added various images.
Unfortunately you didn't share your output, so I cannot tell for sure, but although it seems your RegEx is correct in both cases, it could be that it doesn't match due to some extra spacing.
It appears that you are expecting a valid JSON, so instead of RegEx you could use JSON Extractor and/or JSON Assertion, for which extra spacing will not matter.
Example: if Response Data is
{"token":"12345"}
I can specify JSON Extractor as
(most important line is JSON Path: $.token)
and the result will be variable token with value 12345.
Here's a good online JSON Path tester, which can help you to figure out the right JSON Path.
If your goal is to check presence of a JSON Object with name of token and an arbitrary value I would recommend going for JSON Assertion instead.
Add JSON Assertion as a child of the request you would like to assert.
Use the following JSON Path query:
$.token
JSON Assertion is available since JMeter 4.0
If you still want to go for the Response Assertion - configure it as follows:
Pattern Matching Rules: Contains
Patterns to Test: {"token":"(.+?)"}

Jmeter: String Index Out of Bounds Exceptions on Xpath

Can some one please please help me on this. I am tired of looking into it.
In while loop I am reading data from csv file, navigate to web pages and get Xpath values.
I get String Index out of bounds exceptions on Xpath.
Please see this screenshot of program
Steps to execute were
1.dealers.tt -- HTTP request
2.edit_integrtaion_details.tt --- HTTP request
3.Dealer details -- HTTP Request
then Xpath entities under Dealer details
For some reason some of the records read from file... only 2 steps get executed as below.leaving other steps (3 and Xpath)
dealers.tt
edit_integrtaion_details.tt
then I get an error as
'Dealer details' : java.lang.StringIndexOutOfBoundsException: String index out of range: 8193
I tried selecting redirect automatically and follow redirects in HTTP requests to force step 3 to execute. In both cases get this error.There are no spaces for the name I get from Xpath
Most likely you are sufferin from JTidy issue #205, the options are in:
Uncheck "Use Tidy" box, if your response is valid XML or XHTML it might be the case you don't need it (unlikely though)
Compile latest JTidy from the source code and once done replace jtidy-r938.jar in "lib" folder of your JMeter installation with the brand new JTidy jar.
Switch to CSS/JQuery Extractor
Switch to Regular Expression Extractor
If XPath is totally a must you can also consider JSR223 PostProcessor and Groovy language, it has built-in support of some form of XPath. Check out Groovy Is the New Black article for more details.

How to assert something using response assertion that has different text in Jmeter

I'm trying to make SOAP call in Jmeter and using Response assertion to validate the No Error in the response. It is failing all the time because each xml has different text b/w the tags.
I see my response is in different string like this No Error & No error.
Basically I want to assert that there are no errors by extracting No Error. Is there a way that I use some regular expression here regardless of what text is present in the response assertion?
Thanks
Do you mean case insensitive response assertion?
(?i) ignore case
Check this:
http://jmeter.apache.org/usermanual/component_reference.html#Response_Assertion

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