Case: First time default value will be used as accessToken and then extracted accessToken from response will be used. Using Regular Expression I have extracted the accessToken.
Problem: Same Token get generated for all thread.
Scenario:1 Number of Thread 10 and run; for all ten users default token get displayed.
Scenario:2 Number of Thread 20 and run. This time for 10 users unique token get generated; but for next 10 users default token get displayed. I have attached the JMX File https://filebin.net/qmsw7jkmwtu229rl.
Please correct me what I am doing wrong.
Don't inline JMeter Functions or Variables into Groovy scripts. According to JSR223 Sampler documentation:
JMeter processes function and variable references before passing the script field to the interpreter, so the references will only be resolved once. Variable and function references in script files will be passed verbatim to the interpreter, which is likely to cause a syntax error
So change ${__threadNum} function call in your Groovy scripts to ctx.getThreadNum() (where ctx stands for JMeterContext) and your approach should start working as expected.
Check out Apache Groovy - Why and How You Should Use It article for more information on Groovy scripting in JMeter
Related
I have two sample request , One request response generate a frst json (Customer Validation ) with some date , payment reference (unique for every run) and status. The next request (MakePayment) is to use the payment reference in the first request as a body and then post to make payment .
I have used Reqular Expression and bean Shell to extract and post . This is working when i used one thread to run while executing .
The issue now is this .. i want to run a load test for 50 Threads , each thread is going to return unique payment reference and each of them should be used in the next request . Currently what i have written is using the first extracted value for all the next thread which make only one work as the reference cannot be used for 2 request . 49 will fail .
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If i run with 50 , Threads, The first request will generate 1 unique reference each in response. i want to use each of them in the Make Payment threads. Currently its just using one of the reference for all the Make Payment Request
JMeter Properties are global for the whole JVM, you need to make the property specific to the thread
Since JMeter 3.1 you should be using JSR223 Test Elements and Groovy language for scripting
Never inline JMeter functions or variables into scripts
It's better to use JSON Extractor for getting the values from JSON responses
Change your Beanshell Assertion to JSR223 Assertion and use the following code there:
props.put('payment_reference_' + (ctx.getThreadNum() + 1), vars.get('payment_reference'))
In your "Make Payment Request" use __P() and __threadNum() functions combination in order to get the thread-specific value like:
${__P(payment_reference_${__threadNum},)}
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 ${accessToken} along with their values in the .jtl results file which is basically CSV file which can be re-used anywhere else.
However if you have a requirement to store only the credentials and the token you can go for the Flexible File Writer plugin and configure it to save the aforementioned variables values into a separate file, the relevant configuration would be as simple as:
variable#0,variable#1,variable#2
You can install Flexible File Writer plugin using JMeter Plugins Manager
I have looked at numerous examples of setting properties from cookies, and they all seem to be indicate that using a BeanShell PostProcessor, I should be able to do the following, given a cookie named 'FOO'.
props.put( "fooCookie", "${COOKIE_FOO}" );
However, when I try to write that value to the console, as you see here...
print( props.get( "fooCookie" ) );
... the value is always the string ${COOKIE_FOO} as if the dollar/curly bracket notation is not being parsed.
I feel like I must be missing something painfully obvious here, but after several hours of fighting this, I am bringing it to the experts. Any advice would be appreciated.
EDIT: Adding a bit more detail. This is the layout of my test plan
Test Plan
User Defined Variables
HTTP Cookie Manager
HTTP Request Defaults
Login Thread (setup)
[page request - login POST]
HTTP Header Manager
BeanShell PostProcessor
[more page requests]
And I do indeed have CookieManager.save.cookies=true set in the jmeter.bat file that I am launching it with.
Do you have HTTP Cookie Manager in your test plan? If not, you need to have that.
You also need to set the CookieManager.save.cookies=true in the jmeter.properties file which you can find in JMETER_HOME/bin folder.
${COOKIE_FOO} will return the actual cookie value.
Check that your ${COOKIE_FOO} variable is really set using Debug Sampler and View Results Tree listener combination. Your code is OK so my expectation is that the variable is not set.
Those who suggest using Beanshell where it is possible to handle the situation using JMeter built-in test elements should probably consider quitting IT. There are:
__setProperty() function to put something to JMeter Properties
__P() and/or __property() function to read something from them
See How to Use Variables in Different Thread Groups guide for real-life example.
First, let me preface this question that I've only been using JMeter for 36 hours.
I've been able to successfully create a thread that performs a POST (json body) to generate a new record.
{
"id":1257697771,
"displayName":"TERM2",
"functionName":"f_1257697771",
"displayableSourceExpression":"TRUE",
"typeId":200,
"groupId":300,
"clobObjId":1257697772,
"typeCode":5,
..........
}
I need to take the new record's ID (1257697771) value returned in order to perform updates, get by ID, delete, etc. on this record in other threads.
After much reading, I've created a Regular Expression Extractor where:
Apply to: Main Sample Only
Field to Check: Body as Document
Reference Name: newRecord
Regular Expression: "id":(.+?)\,"displayName"
Template: $1$
Match No: 1
Default Value: NONE
At this point, I'm not sure if my Regular Expression is formatted correctly where (.+?) is valid.
Also, I'm confused if I can either just specify the new reference (newRecord) in another thread's HTTP request's Parameters or use a BeanShell Post-Processor, or a Response Assertion, etc....
There a lot of answers for the same function of "Passing". Not being a programmer, I've tried to follow the discussion "how to extract json response data in jmeter using regular expression extractor?", but I'm still not clear.
Any insight is appreciated. Thanks.
JMeter Variables are local to Thread Group, you need to convert your variable to JMeter Property.
Use:
__setProperty() function in the Thread Group where you define your newRecord variable like:
${__setProperty(newRecord,${newRecord},)}
__P() function to access property value like:
${__P(newRecord,)}
See Knit One Pearl Two: How to Use Variables in Different Thread Groups article for more detailed explanation.
Also be aware of the Function Helper Dialog as it looks like JMeter functions syntax was developed by aliens.
To pass a value between threads you need to use the jmeter property function.
In a jsr223 postprocessor using groovy the code to get the value is as follows:
def userProperty = props.get('propertyToGet')
vars.put('userProperty', String.valueOf(userProperty))
You would then access the variable in your thread using:
${userProperty}
Or you can use shorthand directly:
${__P('propertyToGet')}
Variables in jmeter are thread specific.
Thanks everyone. I was able to resolve it with your help!
In the first thread:
set the Reg Expression Extractor Regular Expression = "id":(.+?)\,"displayName"
added a Bean Assertion where Parameters = ${__setProperty(newRecord,${newRecord},)}
In the second thread:
appended the Path url with ${__P(newRecord,)}
Executing the first thread (POST) resulted an new record with a unique ID. (1257698108)
Executing the 2nd thread (GET) shows
GET http://server/.../.../.../.../1257698108
And returns the exact data generated in the first thread.
Thanks everyone for your help!
I'm trying to generate a jmeter script where a unique folder is created each time the script is run - adding a variable of some sort to the folder name, such as a username+timestamp, should be enough to guarantee uniqueness. However, jmeter is not resolving the variable to its value - although it is when the variable is read out of a csv file (which isn't suitable).
Basically, I'm editing the PostBody in the http request, as follows:
{"alf_destination":"workspace://SpacesStore/90368635-78a1-4dc5-be9e-33458f09c3f6","prop_cm_name":"Test
Folder - ${variable}","prop_cm_title":"Test
Folder","prop_cm_description":"Test Folder"}
where variable is basically any variable I've tried so far (such as a random string, timestamp, etc.)
Can anyone suggest how to get the variable resolved?
You can use jmeter (since 2.9 version) uuid feature -> http://jmeter.apache.org/usermanual/functions.html#__UUID
${__UUID}
and
1) If you want just 1 value for the whole test, add a "User Defined
Variables" Config Element to your test. This will be evaluated when
you load the test script the first time.
2) If you want to have the value change for every thread execution,
but stay the same during each thread instance: under your 'Thread
Group', add a 'Pre Processors -> User Parameters' to your thread group
- and add the variable there.
Also, if you want the value to change each time the thread starts over
(each 'iteration' of the script within the thread group), you can
check the "Update Once Per Iteration" box on the User Parameters - and
it will get a new value each time it starts the thread over at the
beginning of th test script (within that thread group).
http://mail-archives.apache.org/mod_mbox/jmeter-user/201208.mbox/%3C004301cd853e$0c4a60c0$24df2240$#gmail.com%3E
With JMeter 2.9, the following works:
In HTTP Request Sampler, Tab "Post Body" add for example your JSON data and include the variables in it:
{"uuid":"${new-uuid}"}
new-uuid is a user defined variable.
This will send (from View Results Tree, Tab "Request"/"Raw"):
POST data:
{"uuid":"a1b2c3d4e5f6"}
I did this by referencing a variable in the http request post body - ${formvalues} - created using a beanshell preprocessor which is appended to the http request sampler. Beanshell contents:
double random = Math.random();
String formvalues ="{\"alf_destination\":\"workspace://SpacesStore/90368635-78a1-4dc5-be9e-33458f09c3f6\",\"prop_cm_name\":\"Test Folder - ${uname}_" + random + "\",\"prop_cm_title\":\"Test Folder\",\"prop_cm_description\":\"Test Folder\"}";
vars.put("formvalues",formvalues);
So this creates a folder with the username (${uname}, taken from the csv) plus a random number - it's crude as there could potentially still be cases where the script tries to create a folder with the same name as an existing one, but it will work for my case.
suppose you have the value "NewYork" in jmeter variable "Location".
Use it like this in HTTP POST BODY DATA:
{location:"${Location}"} => which gets interpreted as {location:"NewYork"}