I am trying to record Https request.
When i record under HTTP(s) Test Script Recorder it records and i can see Request/response under View Results tree without errors.
When i try to do record same scenario but under Thread Group , it gives me error (Error is thrown by the application).
Application Error - An error was encountered There was an error on the page. Click "Go Back" to go to previous page or click "Home" to go to homepage.
Structure is : Test Plan -> Thread Group -> Recording Controller
In my application while recording it starts with Login Page(SSO Login page) -> Home Page -> Search Page -> On this page i search something and want to capture its response time taken for search.
I think problem is ViewState and EventValidation not getting passed ? Is their a way i can pass it to the page ?
It seems problem with the correlation. You need to find the dynamic parameters like ViewState and event validation.
Record to scripts and compare them to check the dynamic parameter with any sniffing tool like fiddler. If you already aware then ignore this step.
Usually, you get the required parameter before the final call is made. So, you need to find the occurrence where you are getting the required parameters in response and capture using PostProcessor.
Then, pass the captured parameters in the required request.
EX;-Below is for more clarification. Follow same for all dynamic parameters.
TestPlan
--Request1-->PostProcessor(Like RegEx or any other) to capture viewState
--Request2--Pass the captured viewState value to this request.
Related
Usecase:
User searches a product and validates the response time
User validates response time in pagination functionality of searched result.
To check pagination, we need to search. Should this be part of second test or jmeter doesn't require previous request like UI, can we skip this and only test the pagination request?
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).
So if there are no dynamic parameters which store client state like ViewState or associated Cookies then you should be able to test the pagination without executing the "main" search request and only perform the correlation to see if there are more pages left, get the number of the current page, etc.
With regards to whether to put it under the Transaction Controller or not - it's totally up to you, Transaction Controller doesn't have any logic when it comes to "continuation" of the previous request, it just sums up the elapsed time of its children and reports the total amount taken.
I recorded .jmx script by recording Blazemeter tool.
I followed below steps:
Login into application.
By default user landed on page which is Search Page where Patient list is displayed.
Now I select Patient and Navigate to Flowsheet page by clicking on HD Flowsheet menu button. Patient selection is mandatory.
Saved Flowsheet.
Logged Out.
Thread Group Detail:
Action to be taken after a Sample error: Continue
Number of Threads(users): 10
Ramp-up period (seconds): 100
Loop Count: 1
Same User on each Iteration : Yes
After executing script with above Thread group, In database only 6 Flowsheet is getting inserted instead of 10 flowsheet.
I checked View Result Tree, It is showing no error and also in Summary report it is showing 0% error.
What can be root cause? What strategy I should follow in such cases to debug script?
JMeter automatically treats HTTP response status codes below 400 as successful, it won't do any extra checks for the "flowshit" creation or insertion simply because it doesn't know anything about it.
My expectation is that your test silently fails somewhere, add View Results Tree listener and inspect response details for each step, most probably you will see that either you're submitting the same flowsheet over and over again or your script got stuck somewhere.
If you want to add an extra layer of verification, i.e. ensure that response contains specific value, you can add a Response Assertion to each request and specify pass/fail criteria there
In general when it comes to modern web applications the chance you will be able to successfully replay recorded script is close to zero because there are multiple dynamic parameters involved like ID of the patient or flowsheet, cookies, tokens, etc. and these dynamic values need to be correlated
My Jmeter test plan is setting a token variable using a Regular Expression Extractor (a Post-Processor element), but upon a while this variable is not expanded in its value and as consequent ${token} is sent to the REST API under actual test.
I added Constant Delay Timer elements in between each request a user (thread) sends and it seems to overcome the problem to a great extend but not entirely. I still get some Bad Request from the API side.
I provide a screen capture
And a second screen capture showing the full test plan (or a large portion of it)
Can someone please explain why this happening and somehow resolve it ?
It might be the case your Regular Expression Extractor fails to find the value therefore it falls back to the default (undefined) value of ${token}
My expectation is that under the load your application cannot properly respond, to wit response doesn't contain the token. You can double check it using Debug Sampler and View Results Tree listener combination.
You can temporarily enable saving of response data by adding the next lines to user.properties file:
jmeter.save.saveservice.output_format=xml
jmeter.save.saveservice.response_data=true
and next time you run your test in command-line non-GUI mode JMeter will keep response data for all samplers. You should be able to examine the responses and add a Response Assertion to ensure that the token is present in the POST LOGIN sampler response data
Currently, I am recording a script in jmeter by which I am adding a record in a website , but a problem is that while recording a script I am able to add a record in a website, but once recording has been done and after that if I will run a script again then, a script is not adding a record in a website.
can you please help me with this?
In the absolute majority of cases you will not be able to replay the recorded script without performing correlation.
Modern web applications widely use dynamic parameters for session management or CSRF protection so once you record your test you get "hardcoded" values and they need to be dynamic.
Assuming all above my expectation is that your test doesn't add record due to failed login or something like that. Inspect requests and responses using View Results Tree listener - this will allow you to identify which exact step is failing.
The process of implementing the correlation looks as follows:
Identify the element which looks to be dynamic either manually inspecting request parameters and look for "suspicious" patterns or record your test one more time and compare the recorded scripts looking for the parameters which differ
Inspect previous response and extract the dynamic value using a suitable post-processor. For HTML response times the best option is CSS Selector Extractor. It will allow you to extract the dynamic parameter value and store in into a JMeter Variable
Replace hardcoded recorded value with the variable from the step 2
Repeat for all dynamic parameters
Don't forget to add HTTP Cookie Manager to your Test Plan.
I am trying to do a load testing,but facing some issues.
The basic concept in the web app is that the users gives a request for which response links should be generated.(just like google search where we enter a request and click submit and on the next page we get response(website links ).
following are the steps
Initial page of the the browser has a text area where users enter the request in a text area and clicks on submit
The response links will be given in the next page. it takes at least 30 sec to pick the respective links .
The url in the second page is a dynamic url.
i have recorded the process using blazemter and obtained the jmx .
On using the jmx file in jmeter to test for 100 users,it is taking the same url(second page url) that was recorded by blazemeter
for all the 100 users hence we are getting the response links on millisec for all the 100 users.
how can i ensure that for 100 users 100 dyanamic url will be used?
You need to add as a child of the first request a CSS/JQuery extractor that will extract a random link and use it in the following HTTP Request that simulates the click.
This extractor uses this syntax for extraction:
https://jsoup.org/cookbook/extracting-data/selector-syntax
And you need to use 0 as number to ensure randomness.
If you export the recording in SmartJMX mode the relevant Regular Expression Extractors Post-Processors will be added to your script in order to handle dynamic parameters (if any) so each JMeter thread (virtual user) will get its own dynamic URL.
I would recommend running your test with 2-3 users first and having View Results Tree listener enabled so you could inspect request and response details and ensure that your test is doing what it is supposed to be doing prior to simulating large loads.
Check out How to Cut Your JMeter Scripting Time by 80% for more information.