I want to delete my added jobs in a table in JMeter. So when I try to delete in response it deletes only the first value, not the next value. I tried to use beanshell sampler but it didn't traverse to the next row to fetch the value
A "delete" request should be some form of HTTP POST request which takes "job" position or ID as the parameter, you can see how does the "delete" request for the "job" looks like using your browser developer tools or recording a single request using JMeter's HTTP(S) Test Script Recorder
Once you know how the request looks like and how the "job"s are being selected for deletion you should be able to:
Extract the job IDs (or whatever is the parameter) using a suitable JMeter's PostProcessor and store them into JMeter Variables. The process is known as "correlation" and there is a lot of information on the topic in the Internet
Use i.e. ForEach Controller to send a "delete" request for each "job" instance in the "table'
Related
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
I'm doing a performance test of a HTTP Patch Method Request using Jmeter called 'Update Person'. The case here is the Update Person is dependent on another request called 'Create Person'. Create Person will return a 'personId' as a response and I will use that id to send an update request. So I can't do a performance test with only the Update Person Request. Here is my Jmeter Test Plan Layout:
Jmeter Test Plan
When I run the test plan, the performance of both request is significantly slower than testing the Create Person alone. My questions are:
Does testing two http requests affects the performance? If yes, how?
Is there a way that I can test my Update Person request alone while the Create Person request is running in the background to get the personIds?
Thank you.
1.You can first run the create person alone and get all the required person ids in the csv. For this you can use the post processors and capture and write the output or take it directly from DB if it is there and you can.
2. Then, pass the created ids to the second request from the csv using CSV Data Set config.
Update:-
Use regex or any post processor for fetching the UserId then with in the same sampler use BeanShell PostProcessor to write the output to csv:-
Ex:-
CreatePerson = vars.get("Create_Person");
f = new FileOutputStream("C:/Users/XXX/Users.csv", true);
p = new PrintStream(f);
this.interpreter.setOut(p);
print(CreatePerson);
f.close();
This can also be achieved with Groovy for performance improvement. I am not an expert on Groovy but you can find that on this site. Dmitri T has submit that many times.
Then, for reading it is very easy. Add "CSV Data Set Config" before the samplers or on top to fetch the data. Column name need to be passed as variable where it is required like ${CreatePerson}
There is one more thing to capture the data instead of code. Use Sample Variable. In the user.properties(under bin folder) file add a line in the end:-sample_variables=CreatePerson
Then, use simple data writer or view result listener to save the results in the csv. It should write the data in the csv. You can deselect all the data that is not required from the simple data writer/view result listener.
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 have jmeter script contains five transactions of which one transaction contains more than one dynamic values. And I want to know how to decide which value to fetch in order to pass it to further transaction?
You need to fetch those values which are required.
Record your scenario 2 times
Inspect request details using View Results Tree listener
Find request parameters (they may be in the request headers as well) which are different between 2 recordings
These are the dynamic parameters you need to correlate (extract from the previous response and pass to the next request)
Alternatively you can use a cloud-based JMeter scripts recording solution which is capable of exporting recorded scripts in "SmartJMX" mode with automatic correlation of all dynamic parameters so you won't have to worry about it. Check out How to Cut Your JMeter Scripting Time by 80% guide for details.
I need to send multiple post requests simultaneously. And the problem is that transaction id in url should always be unique.
I added Synchronizing timer to send requests at once and added BeanShell PostProcessor to increment transaction id after request is sent.
But this works only if requests are executed one by one. How to increment transaction id if I need to run requests all at once?
Just use __counter() function in "global" mode like ${__counter(FALSE,)} instead of manually incrementing the "txnId" variable:
Demo:
See How to Use a Counter in a JMeter Test article for more information on generating incremented numeric values in JMeter.
Going forward remember that you need to implement some form of inter-thread communication to ensure that the same variable is not updated by 2 threads at the same time.