How to read a text file and verify its context in jmeter - jmeter

My scenario is load test a functionality which will generate a text file at last, i need to verify the content of that file.
Please guide me step by step to achieve this functionality in jmeter from very beginning to last.

Given you already have your file downloaded to your local hard drive:
Add HTTP Request Sampler to your Test Plan
Configure it as follows:
Protocol: file
Path: /path/to/your/text/file.txt
Add Response Assertion as a child of the HTTP Request
Configure it to test whether the file contains expected data.
See How to Extract Data From Files With JMeter for detailed instructions.
If the file lives in the web, take the same approach, but use http or https protocols to retrieve the file. To save it locally you can use Save Responses to a File listener

Related

JMeter save response to file with custom extension

I try to save response of a HTTP Request with custom file extension. ContentType is application/octet-stream and saved file ends with _1.octet-stream by default. I use Save Responses to a file listener to save file.
Add Save responses to a file listener as a child of the request which output you would like to save
Configure it like:
Replace myfile.txt with your desired filename/extension
That's it, assuming the above configuration JMeter will store the file under the given name
Check out Performance Testing: Upload and Download Scenarios with Apache JMeter article for more information with regards to simulating file downloads in JMeter tests

Jmeter Image uploading script

I need to do load test on a web application where images will be uploaded(Similar to the site https://imgbb.com/). I am unable to perform this. Can anyone help me out with this.
I have tried working it out but no luck. Please find the below screenshots for reference. Firstly after recording the script i have enhanced the script with correlation and have executed, then I have received the following error.
After doing some R&D, I have made certain changes(Implementation from default to HttpClient4, and Request parameters to Body Data) and executed again, still no luck.
Changes Made
Result
Can someone please suggest now
You're doing something very weird. The easiest way to create a file upload request using JMeter is just recording it using JMeter's HTTP(S) Test Script Recorder
Start JMeter's HTTP(S) Test Script Recorder
Import ApacheJMeterTemporaryRootCA.crt file into your browser (it is required as imgbb.com is using HTTPS protocol and JMeter will need MITM certificate in order to be able to decrypt and record secure traffic)
Copy the file you'll be uploading into "bin" folder of your JMeter installation (otherwise JMeter will not be able to find it)
Perform upload request in the browser - JMeter will capture it under Recording Controller
See Recording File Uploads with JMeter article for more details.
Just in case if you want or need to build the request manually the relevant HTTP Request sampler configuration should look like:
Parameters tab:
Files Upload tab
You should see the following output in the View Results Tree listener:
To upload files from JMeter Http sampler you have to add file path to http sample and corresponding mime type..
Open Files to upload tab in the HTTP sampler enter the file path ..
If the file is in JMeter's bin directory you can give relative path , if the file resides somewhere on the disk give absolute path and enter corresponding mime type
You can find mime type here.
For more information on load testing with JMeter please follow the link

Jmeter is downloading a 67Mb file but only saving 10,240 KB

Bit of Background, I am using Jmeter to search for a download url from a rest API with an Oauth authorisation token set from the rest API. Once I have this URL I am doing a HTTP request, GET with redirect automatically, keepAlive and browser-compatible headers all checked.
Hanging of this I have then attached a "Save response to a file" with the file name prefix set to "blob" (this will be a filename set by a parameter later) and Add timestamp to the file name checked.
The url in question points to a zip file that needs OAuth header token (which is set successfully) the whole test plan succeeds.
This is great and you can see looking at the results
You can see that there are 67821343 bytes downloaded by the HTTP Request this is what we are expecting to see as this is the size of the file around 67Mb
This is were it starts to go wrong however as the save file only has 10,240 KB is an OCTET-Stream File and renaming this file to a zip just does not work as it is not a complete zip file.
This is my issue the Save file is not saving all the information and only save 10,240KB, every single time.
What am i doing wrong?
Is there a better way to get this zip file?
Please help it is driving me mad.
As once I have downloaded it I then need to assess the contents of the zip file to prove that the download URL that we are being directed to contains the correct ZIP.
here's the RUB if i do it manually through a browser i get the file downloaded successfully and it is exactly the same size (67821343 Bytes) but it just doesn't save in Jmeter.
Add the following property to user.properties file:
httpsampler.max_bytes_to_store_per_request=73400320
This will allow JMeter to save files up to 70MB
You can also set this property to 0 - in this case JMeter will not truncate data (make sure you amend JVM heap so responses could fit in memory)
References:
Configuring JMeter
Apache JMeter Properties Customization Guide

JMeter leaving protocol in HTTP request sampler empty

I'm using JMeter v3.2 and I put up a really simple test plan for testing something. I have a csv file where I save all URLs acquired by a crawler. The URLs are just normal (http://something.com).
After reading those in from the CSV Config and writing them into my HTTP request sampler I get the following issue. The problem comes with the default protocol of JMeter which turns my request URL into this:
GET http://[http://something.com/]/.
Is there a way to turn that off?
Never put anything but ip address or hostname into Server Name or IP input of the HTTP Request sampler.
If you are getting the whole URL from CSV file - use Path input instead like:
Demo (as per View Results Tree listener)
See Using CSV DATA SET CONFIG guide to learn more about parameterisation of your JMeter test with CSV files.

JMeter zip file download from server

I have a requirement to download zip file from server through JMeter to test the peroformance but for me the downloaded files are shown in x-filler, i need to have the zip file downladed.
Please help me here
Thanks in Advance
Simulating file download event using JMeter is as simple as sending HTTP GET request using HTTP Request sampler.
If you need to save the response somewhere for later reuse or analysis add Save Response to a file listener as a child of the request which performs the download. Check out Performance Testing: Upload and Download Scenarios with Apache JMeter article for comprehensive explanation.
Be aware that storing responses will cause huge disk IO overhead during the load test so I would recommend ticking Save response as MD5 hash box under "Advanced" tab of the HTTP Request sampler and use MD5Hex Assertion to compare the MD5 checksum of the response with some reference value.
To download any file, you need to extract it using Regular Expression Extractor.
Add the Regular Express Extractor to the request where you want to download and configure the fields as shown below. Use (?s)(^.*) as the expression to extract everything.
Add the Save Responses to a File sampler and configure the fields as shown below.
Execute the test plan. In the JMETER_HOME\bin\, you can see the zip file. Extract the zip file and validate.
The easiest way is to use your own code to download the file. The options are BeanShell Postprocessor or JSR223 Postprocesor.
I extracted file name from response header Content-Disposition, save it to varible, and the use variable for filename. Additional variable was defined on Test level, holding folder name where to save files.

Resources