A dynamic value that appears in the subsequent web requests appears in the Request Header throughout the script. I am unable to correlate this value as it is not available in response header / body section. How can I now correlate this value?
I have tried recording using VUGEN - HTML & URL Mode. I have also used Fiddler as well as HAR files exported via Chrome Developer Tools. None of them have any additional request/responses that could have been potentially missed while recording with VUGen or other tools.
The dynamic value appears in the Request Header like this :
Reference:
https://*****/suite/sites/ecase-case-worker/page/home/start-process/iUBVQU4qoHEAl9UkPVyXKjTxMt3bz-olj7yCJ6dulSOHbmIIDal?parameters=**855b2a7b-a175-49e6-9ee0-7b7f37667197**
The "855b2a...." value appears throughout the script in different places like this below :-
web_custom_request("iUBVQU4qoHEAl9UkPVyXKjTxMt3bz-olj7yCJ6dulSOHbmIIDal",
"URL=https://****/suite/rest/a/sites/latest/ecase-case-worker/page/home/startProcess/iUBVQU4qoHEAl9UkPVyXKjTxMt3bz-olj7yCJ6dulSOHbmIIDal?cacheKey=**855b2a7b-a175-49e6-9ee0-7b7f37667197**",
I have manually verified in the application that it this value keeps changing every single time "Create application" link is clicked. Is there a way to capture this dynamically changing value?
If this is not sent to you from the server, as a correlated value, then what remains is that the value is generated on the client, likely as a part of a JavaScript function output.
Speak with the developer of your application about the location of the generation of this value. If it is locally generated then simply execute the JavaScript inside of your HTTP script or reproduce the algorithm in C for native inclusion in a C HTTP virtual user. You have some alternate paths as well, which includes the newer JavaScript based virtual user, Truclient (which runs a full browser), Citrix, RDP or GUI virtual users.
With Truclient, Citrix, RDP or GUI you are simply going to run a full browser and inherit the JavaScript execution and inclusion of the key value as a part of full stack execution.
The Fiddler recording helped in identifying the correlation value as it was hidden in one of the EXTRARES references, which wasn't captured anywhere by the VUGen. The request had to be subsequently added manually into the script to pick up the dynamic value in it's response.
Related
When using .Net application,
and checking error logs,
getting below error: Object reference not set to an instance of an object.
Most probably you're sending the wrong request due to missing or improperly implemented correlation
So if you have recorded a request using HTTP(S) Test Script Recorder most probably there is at least one parameter there which is supposed to be dynamic, to wit
extracted from the previous response using a suitable JMeter Post-Processor
stored into a JMeter Variable
and the dynamic variable to be sent along with the request instead of recorded hard-coded value
In .NET web applications the most commonly used parameter is ViewState, however other may also be required like EventValidation
so given you properly handle these dynamic parameters you should start getting "good" responses, see ASP.NET Login Testing with JMeter for example handling of the dynamic parameters.
Also don't forget to add HTTP Cookie Manager to your test plan.
HTML page is causing error in JMeter even if status is green , why this error is coming
As per JMeter Project main page:
JMeter is not a browser, it works at protocol level. As far as web-services and remote services are concerned, JMeter looks like a browser (or rather, multiple browsers); however JMeter does not perform all the actions supported by browsers. In particular, JMeter does not execute the Javascript found in HTML pages. Nor does it render the HTML pages as a browser does (it's possible to view the response as HTML etc., but the timings are not included in any samples, and only one sample in one thread is ever displayed at a time).
the Window interface is something browser-specific hence JMeter cannot execute the request properly.
You need to perform manual correlation of the dynamic parameters to replicate browser's behaviour, this way you should stop seeing errors, at least ViewState parameter needs to be extracted from the previous response and passed to the next request, see primefaces-jmeter-test.jmx example test plan for details.
This is somewhat a duplicate of this question, but that question has no (valid) answer and is 1.5 years old so asking my own with hopes people have more info now.
If you are using multiple instances of a WebBrowser control, MSHTML, IHTMLDocument, or whatever... from inside the APP instance, mostly IInternetProtocol::Start, is there a way to know which instance is loading the resource? Or is there a way to use a different APP for each instance of the control, maybe by providing one via IDocHostUIHandler or ICustomDoc or otherwise? I'm currently using IInternetSession::RegisterNameSpace to make it process wide.
Optional reading below, don't feel you need to read it unless above isn't clear.
I'm working on a legacy (Win32 C++) email client that uses the MS ActiveX WebBrowser control (MSHTML or other names it goes by) to display HTML emails. It was saving everything to temp files, updating the cid: URLs, and then having the control load that. Now I want to do it the correct way, using APP. I've got it all working with some test code that just uses static variables/globals and loads one email.
My problem now is, the app might have several instances of the control all loading different emails (and other stuff) at the same time... not really multiple threads so much, just the asynchronous nature of the control. I can give each instance of the control a unique URL to load the email, say, cid:email-GUID, and then in my APP code I can use that URL to know which email to load. However, when it comes to loading any content inside the email, like attached images using src="cid:", those will not always be unique so I will not always know which image it is, for which email. I'd like to avoid having to modify the URLs of the HTML before displaying it (I'm doing that now for the temp file thing, but want to do it a better way).
IInternetBindInfo::GetBindString can return the referrer, BINDSTRING_XDR_ORIGIN, or the root URL, BINDSTRING_ROOTDOC_URL, but those require newer versions of IE and my legacy app must support older XP installs that might even have IE6 or IE7, so I'd rather not use these.
Tagged as TWebBrowser because that is actually what I'm using (Borland Builder 6 C++), but don't need answers specific to that platform.
As the Asynchronous Pluggable Protocol Handler us very low level, you cannot attach handlers individually to different rendering controls.
Here is a way to get the referrer:
Obtain BINDSTRING_HEADERS
Extract the referrer by parsing the line Referer: http://....
See also How can I add an extra http header using IHTTPNegotiate?
Here is another crazy way:
Create another Asynchronous Pluggable Protocol Handler by calling RegisterMimeFilter.
Monitor text/plain and text/html
Scan the incoming email source (content comes incrementally) and parse store all image links in a dictionary
In NameSpaceHandler you can use this dictionary to find the reference of any image resources.
I'm creating a 50 users load test on a JSF web application.
I record a scenario using JMeter proxy for one user who logs in, does some db operations and logs out. After recording the scenario, the recorded test contains http requests and data that particularly belongs to the user used while scenario recording.
At the time of running the test for 50 unique virtual users, the recorded test sends http requests and data which was in the recorded scenario. But in our application, the http requests and data vary depending upon the user. So how do I handle such situations in JMeter when it comes to methods being called depending upon the existence or non-existence of data for a user after logging in?
To be precise how would I make changes in my Test plan to manage dynamic urls and dynamic data for each virtual user?
Latest versions of JMeter allow you to write the whole parameters (raw data) from scratch, so you could use variables in this field.
To achieve dynamic URLs use a Regular Expression Extractor (Post-Processor) on a prior request that define what request will be sent and use the variable in HTTP Request's path field.
If you know what request each type of users will send you could use If Controllers and test a thread variable, created by a previous Regular Expression Extractor, and inside each controller add the specific request.
If the subsequent request for each user is defined by the server, using redirection, just check "Follow Redirection" field.
See JMeter Wiki for more examples on how to do this.
I have a requirement where the site only needs to respond to the user within certain seconds, regardless of the contents.
Now there is a option in Jmeter in HTTP Proxy Server -> URL Patterns to exclude and then to start recording.
Here I can specify gif, css or other content to ignore. However before starting the recording I have to be aware of what are the various contents that are going to be there.
Is there any specific parameter to pass to Jmeter or any other tool which takes care about loading the page only and I can assert the response code of that page and no the other contents of the page are recorded.
Thanks.
Use the standard HTTP Request sampler with DISABLED (not checked) option Retrieve All Embedded Resources from HTML Files (set via sampler's control panel):
"It also lets you control whether or not JMeter parses HTML files for
images and other embedded resources and sends HTTP requests to
retrieve them."
NOTE: You may also define the same setting via HTTP Request Defaults.
NOTE: See also "Response size calculation" in the same HTTP Request article.
Add assertions to your http samplers:
Duration Assertion: to tests if response was received within a defined amount of time;
Response Assertion: to ensure that request was successfull,
e.g.
Response Field to Test = Response Code
Pattern Matching Rules = Equals
Patterns to Test = 200
You want to run test that would ignore resources after certain number of seconds?
I don't understand, what are you trying to accomplish by doing that?
Users will still receive those resources when they request your url, so your tests wont be accurate.
I don't mean any disrespect, but is it possible that you misunderstood the requirements?
I assume that the requirement is to load all the resources in certain number of seconds, not to cut off the ones that fail to fit in that time?