I want to use the Random function within the variable in Jmeter for example
${demo_variable_g${__Random(1,4,)}}
I am extracting the values for demo_variable using regular expression extractor. I want to generate random number while using the extracted variable value. How do I do that?
The correct function would be:
${__V(demo_variable_g${__Random(1,4,)})}
From the __V() function documentation
For example, if one has variables A1,A2 and N=1:
${A1} - works OK
${A${N}} - does not work (nested variable reference)
${__V(A${N})} - works OK. A${N} becomes A1, and the __V function returns the value of A1
See Here’s What to Do to Combine Multiple JMeter Variables article for explanation and demos
Related
I am using JMeter's Function Helper Dialogue and i found below syntax -
Syntax - ${__Random(12,99,customer-id)}
Result - random values b/w 12 to 99 getting generated, which will get stored in variable "customer-id"
Now Problem is I have to generate value with prefix 'test' (say-test12) and store it in variable 'customer-id'
How to do that ?
I don't see why would you need this because JMeter Variables can be normally concatenated with plain text so if you need test12 just use test${customer-id} statement where required.
However if you really need to generate some static text followed by a random number you could go for __groovy() function configured like:
${__groovy('test' + org.apache.commons.lang3.RandomUtils.nextInt(12\,99),customer-id)}
Demo:
More information:
RandomUtils JavaDoc
Apache Groovy - Why and How You Should Use It
I am using jmeter to test ldap.
As part of my test, I want to search for a random uid on each iteration. I did not find a straight forward answer to this. So my idea was to first select a random number 1-200 and saving that number as a variable named uid, that number would correspond to a UDV name.
For example
uid = 2 and 2 = A123456
in my udv list. However when trying to reference this variable in my ldap search filter.I am trying to use
(uid=${${uid}})
in hopes to get the value of the value of uid. However the search results just show this as a string.
<searchfilter>(uid=${${uid}})</searchfilter>
Is there another way to achieve what I am looking for?
Use __V function
${__V(${uid})}
The V (variable) function returns the result of evaluating a variable name expression. This can be used to evaluate nested variable references
${__V(A${N})} - works OK. A${N} becomes A1, and the __V function returns the value of A1
Perhaps the easiest would be going for __RandomFromMultipleVars() function?
Another option is using __V() function, it can combine and evaluate JMeter Variables
I'm using jmeter and I would like to automate below scenario :
(In general I would like to increase value, I already know how to extract value from previous request)
Execute request_1
Extract value1 from request_1 using Regular expression extractor
Increment value1.
Put new value (increased) to the request_2
Any idea how can I achieve it ?
Check out __intSum() function, you can sum an arbitrary number of arbitrary integers via it.
Given you have a JMeter Variable called yourVar where the extracted value lives, the relevant __intSum() function configuration to increment ${yourVar} value by 1 will be something like:
${__intSum(${yourVar},1,yourVar)}
Demo:
If the value you're getting from the Regular Expression Extractor is more than 2 147 483 647 you will need to use __longSum() function instead.
See Apache JMeter Functions - An Introduction guide for more information on JMeter functions concept.
I have assigned a variable ${WH} to 22 and now want to assign ${WH} to another variable called ${W_ID}. I have tried a couple of things, but none of them seem to be working.
None of below working (used in User Defined variable page):
W_ID=${__eval(${WH})}
W_ID=${__evalVar(WH)}
W_ID=${__V(${WH})}
I can't figure out why the value doesn't get stored in W_ID. How can this be done?
You can add JSR223 Sampler language can be Javascript and write:
vars.put("WS_ID", vars.get("WH"))
This will move WH value to WS_ID variable.
There's an issue if you are using multiple User Defined Variables, later assignment can override previous assignment, try to avoid it. The reason can be found in manual:
Note that all the UDV elements in a test plan - no matter where they
are - are processed at the start.
You can use the __groovy() function available since JMeter 3.1.
The relevant Groovy expression which will read ${WH} variable value and save the result into ${W_ID} variable will look something like:
${__groovy(vars.get('WH'),W_ID)}
Demo:
You can put the function anywhere in your script. See Functions and Variables JMeter User Manual chapter for more information.
I want to add 2 kind of parameters to a post request.
From an http request I extract 2 list of variables:
Order_id = input type="hidden" name="(drag.+?)" value="(\d+?)"
Weight_id = class="draggableviews-weight form-select" id=".+?" name="(drag.+?)"
In the Post Request that follows, I need to repost all this variables. I use a BeanShell PreProcessor for this. The first list is no problem, since this get the same value. The second list should get a new random value between -50 and 50. I also want a different random value for each iteration.
How should I do this ?
If I use Random Variabele Config Element I get the same random int for each variabele. I want a different one for each iteration.
enter image description here
I would recommend using ThreadLocalRandom.nextInt() method like
sampler.addArgument(name2, String.valueOf(java.util.concurrent.ThreadLocalRandom.current().nextInt(-50, 51)));
Don't inline JMeter Functions into Beanshell scripts, either pass them via "Parameters" section and refer via Parameters or args shorthands or use appropriate code-based substitutions.
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information on Beanshell scripting in JMeter tests.
To retrieve multiple values from single Regular Expression Extractor, we use Templates as follows:
then refer groups as follows:
In the image, you can see that link is Reference Name and there is only match found with the regular expression.
number of matches is : link_matchNr
first group value : link_1_g1
second group value : link_1_g2
Note: The regular expression I tried on is google.com, you can also simulate the same as follows:
Use Random function as follows:
value2 = ${__Random(-50,50)};
log.info("valuee2 " + value2);
Use Random Variable:
then, refer Output Variable in Beanshell Preprocessor as follows:
value2 = vars.get("randomInt");