I am using JMeter to performance test an address validation service that finds valid addresses for an insurance quoting application. I am testing this from the back end using soap requests and I have a csv data config file with a large number of search strings.
In order to get a true idea of the performance of this service, I need to test with a large number of addresses i.e. over 30000 so that the server caching doesn't affect my performance results. I have a list of addresses in a csv spreadsheet but some of them cause failures for whatever reason (e.g. the address no longer exists, I have verified this when just submitting one request with the address in question). I want to remove all addresses that fail from my csv file.
So I wanted to use JMeter to print the search address to the console if the request with this particular search address fails. I tried to use an IF controller with this as the condition "${JMeterThread.last_sample_ok}" == "false" and the following in the name section so that it prints the address to the JMeter console. The parameter searchAddress comes from my CSV input file. When I try and run this it just prints ${searchAddress} to the console. So the if statement works but it doesn't recognise searchAddress as a variable.
If I can get this to work I would copy all the search strings to excel and use a formula to remove them from my list of addresses to be used by my JMeter thread.
Sorry for the lengthy question, but hope I have explained my issue clearly.
An alternative is to use a BeanShell PostProcessor as child of which ever component receives the error; In the Beanshell, something like:
String searchAddr = vars.get("searchAddress");
//Output to Console
System.out.println("Failed Address = " + searchAddr);
//Output to Log file etc.
log.info("Failed Address = " + searchAddr);
Related
Field name is getting changed after executing the script.
A. After executing the script,the field name is not getting displayed in response data but the parameters are displayed with slight changes.
In sampler below details are getting displayed.
Name : aura.token
Parameters : HCQAHBgEMTAwMBQCGAcxMDAwMjA5GAcxMDAwMjA5ABQCGfMQscHV8XF654tDbfY0XD3yRxaSwbvRh1oAGfMgzIG_YaBrAZdWB-IAMP_0iAQiYMHheBA3BA0SoXzWh4kA
but after execution of a script below details are getting displayed in response data.
*/{"event":{"descriptor":"markup://aura:invalidSession","attributes":{"values":{"newToken":"HCQAHBgEMTAwMBQCGAcxMDAwMjA5GAcxMDAwMjA5ABQCGfMQkaKR6n5r5QqE7gz5Qk1l1Rb67KOtiFoAGfMgtKaMHHWJZiXEOt8pU6zs1edK_Q4dQo5VL2ea8y2qi3gA"}}},"exceptionEvent":true}/*ERROR*/
It's name is "newToken". So why do you think this should not be changed?
Most probably you need to perform correlation of this field, to wit you will not be able just to record and replay the script as this "token" is being generated dynamically and has new value each time you access the application.
The main idea of the correlation is
Identifying dynamic elements. The easiest way is to record your test scenario one more time using HTTP(S) Test Script Recorder and compare the recorded scripts. All parameters which are different needs to be handled properly.
Wherever you detect a dynamic parameter look into previous sampler response data (body, headers, Cookies, URL) - the value should be there
Apply a relevant Post-Processor to the previous sampler in order to extract the dynamic value and store it into a JMeter Variable
Replace recorded value with the JMeter Variable from the previous step
You should be good to go now.
Very new to JMeter (and a long time Stack Overflow listener but first time caller so take it easy on me) so any help would be appreciated.
I am trying to set up a JMeter test that uses multiple dynamically generated access tokens to run across scenarios. I currently have a set of data using the CSV Data Set Config containing login credentials of a user's email and password for example:
email1#email.com,password1
email2#email.com,password2
Next I send a HTTP POST request to the Login service which generates an accessToken. Then, I am using the JSON Extractor to grab the generated accessToken. After that I am using the BeanShell Assertion to store the accessToken property/variable.
My issue seems to lie here in this last step since it will only store the last generated variable instead of each of the generated accessTokens. I want to be able to store/overwrite the grabbed accessToken for each email password combination. I would like it to modify/populate the CSV file like this:
email1#email.com,password1,accessToken1
email2#email.com,password2,accessToken2
I have also tried using the Pre Processor > User Parameters
Screen shot of User Parameters
I would like to have the "userBearerToken" variable update/overwrite along with the tests, but I cannot find a way to do so or if this can even currently be done.
I'm finding it difficult to word what I am trying to ask, but basically I want to store multiple dynamically generated variables (accessTokens that change and time out) and use them in other tests. I don't care which component can handle this (either the CSV or User Parameter), but I need to be able to store these variables with their corresponding email password credentials.
If you want to store the accessToken value into a JMeter property for using in other Thread Group(s) be aware that properties are global for the whole JVM and remain until JMeter is restarted so if you define a single accessToken property - each JMeter Thread (or iteration) will overwrite the value.
The solution is to use current thread (or iteration) number as prefix or postfix, this can be done using either __${__threadNum} function or relevant JMeter Variable depending on how iteration is defined or both.
Example setup:
In first thread group: ${__setProperty(access_token_${__threadNum},bar,)}
In second thread group: ${__P(access_token_${__threadNum},)}
Demo:
If you want to save the values into a file writing into the current one is not the best idea as you can (and most probably will) get malformed file due to a form of a race condition. So I would recommend using Sample Variables property instead.
If you add the next line to user.properties file:
sample_variables=email,password,accessToken
JMeter will store the variables named ${email}, ${password}, and ${accessToken} along with their values in the .jtl results file which is basically CSV file which can be re-used anywhere else.
However if you have a requirement to store only the credentials and the token you can go for the Flexible File Writer plugin and configure it to save the aforementioned variables values into a separate file, the relevant configuration would be as simple as:
variable#0,variable#1,variable#2
You can install Flexible File Writer plugin using JMeter Plugins Manager
There is a URL which I want to hit and save the response. The URL id needs to be incremented each time and save the response. For example -
First Get Request - http://google.com/getdata/?Id=1
First Response - one
Second Request - http://google.com/getdata/?Id=2
Second Response - two
and so on...
I want to hit the request with increment the id each time and save the response
I have tried using fiddler but unable to figure how to increment the id and save the response.
P.S. - I have to make around 6,00,000 hits
Since the 'Postman' tag is mentioned, I can help you regarding how to implement this in Postman.
Postman has a nice feature of using 'variables'.
You can use environment variables or globals.
Read more about these on their docs:
https://www.getpostman.com/docs/v6/postman/environments_and_globals/variables
You can use a global variable such as 'counter' and set it to 1 / whatever starting point you want.
Then you can modify your request like so :
http://google.com/getdata/?Id={{iteration}}
Now, in the Tests script of the request you can write the following script
let i = parseInt(pm.globals.get('iteration')) + 1;
pm.globals.set('iteration', i);
Also, to access the response you can use the following command in Test script:
console.log(pm.response); // Use pm.response as per your needs
Save the request in a collection.
Now load the Postman's Runner and select the collection.
Now you can put an iteration count of 6,00,000 and hit run!
Remember, heavy iterations will cause performance degradation.
In JMeter you need to click , Ctrl+0 and Ctrl+1 to create , Thread Group and HTTP Request
In Thread Group put the number of hits you need in Number of Threads (users)
In HTTP Request Put in Server Name or IP www.google.com and in Path /getdata/?Id=${__threadNum}
__threadNum will create increasing number from thread 1 to number of hits.
For small number of hits or debugging you can add View Results Tree to view request/response by clicking Ctrl+9 in Test Plan/Thread Group level.
To save the response use Post Processor, especially by adding Regular Expression Extractor below HTTP Request by clicking Ctrl+2.
Allows the user to extract values from a server response using a Perl-type regular expression. As a post-processor, this element will execute after each Sample request in its scope, applying the regular expression, extracting the requested values, generate the template string, and store the result into the given variable name.
Import to notice that for load testing you need to work with non GUI mode, which means call jmeter using command line as jmeter -n -t myTest.jmx
you will use Command-line mode (called Non-GUI mode) to run it for the Load Test.
Don't run load test using GUI mode !
For saving all responses to a one file see save response data or if you want to save file per thread/user you can add Save Responses to a file
Fiddler:
Open script editor (Control + r ) then add the following code inside OnBeforeResponse
static function OnBeforeResponse(oSession: Session) {
if(oSession.oRequest["X-SAVE-ME"] != "")
{
oSession.SaveResponseBody("C:\\tempfiddler\\" + oSession.SuggestedFilename);
}
}
Go to the "Composer" tab and include the header X-SAVE-ME with any value, in the URL, replace your ID with # (just like this: http://google.com/getdata/?Id=#) fiddler will now ask for the starting and ending value of ID before executing;
Please find the snapshot below for your scenario.
Scenario_Testplan
First, go to user properties and put "sample_variables = ID, Response_File_Name" or whatever the name you choose for the variables. Restart jmeter.
Create the below plan:-
CSV data set config to have incremental values and response file name
HTTP request will use ${ID}
Save response to a file will use ${Response_File_Name}
Hope this will help.
I would do this by command line, using a while loop with a curl to the URL, storing the body result on the standard output to a file. It would look something like this:
for i in {1..600000}; do curl "http://google.com/getdata/?id=$i" > body-result-id-$i; done
I couldn't test the line above because I don't have any access to a console right now, but I think it should work.
In Burp you can do this using the Intruder tool. First, capture a sample request in Burp. If you're unsure how to do this, please consult the getting started documentation.
Then right-click the request and selected "Send to Intruder".
In the Positions tab within Intruder, first click "Clear" then select the section you want to vary, and click "Add"
In the Payloads tab select the Payload type as "Numbers" and configure the range.
Click "Start attack"
For more information, consult the documentation.
One Another solution is that you can use Counter in jmeter. That you can find from below path
Thread Group > configElement > Counter.
Configure the Counter as per your need.
Give the Reference Name i for counter.
Use the variable in your request
For more information.
I am using the jmeter for load testing a web application.I am using csv Data Set Config to pass email to test login scenario.While i am running with 100 concurrent users,it is picking same email from csv file.How can i make sure that it will use one email only once.
I was facing the same issue during concurrency testing using CSV data config. By enabling Sharing Mode=All Threads in CSV data config solved my problem and i was able to send unique data per request
Use Random String Function for generation of different email ids,
RandomString function returns a random String of length using characters in chars to use.
It has three parameters,
1. Length of the desired random string
2. Source characters
3. If you need to store generated string into a JMeter variable you can provide variable name as 3rd argument.
${__RandomString(6,a12zeczclk, MYVAR)}
Example as,
${__RandomString(10,abcdefghijklmnopqrstuvwxyz,)}#MyMail.com
I would like to read the exact value of a variable I use to pass through an HTTP Request. I first read in many values of variables using the CSV Data Set Config. For the username, it is in the form of an email address. So, I have a variable called "email" in the Data Set Config. In the actual HTTP Request, for "name", I call it "username". For the "Value" field for this same "username", I added a time() function to it like this so I would end up creating unique users in my tests:
${email}${__time()
When I view the "Request" in a View Results Tree, I can see my parameter is listed correctly:
username=email1%40email.com1390854377360
I do not care if this is correct in real world terms. I already know that is not a valid email. That is ok for now.
What I want to know is how can I log that email that I just created on the fly? I would like to not have to pull in the whole request every time also and then use some type of Regular Expression extractor. It just seems like there should be an easy way to do this.
I think there are 2 ways,
Beanshell Pre/Post processors : you can write custom code in which you can log all your variables in some custom log file
Simple data writer : you can configure it and check save url,save field names,save response data field checkboxes that will give you complete data but in that later postprocessing on result file is required to get all usernames (email in your case).
first approach is easier and allows you create your own logging format(easy to retrieve and use somewhere else).
second approach is somewhat tedious and requires post processing.