Is it possible to generate 'Random number' variables in JMeter?
I have recorded a user journey
I have imported the journey into JMeter
I have to type in a unique 4digit id within my user journey test case
Its default to 2323 at the moment in jmeter
Is there a way of generating a random 4didgit number?
For example thread1: ID: 2323
thread2: 3334
thread3: 5643
Please refer to images below:
Use Random JMeter function
${__Random(0000,9999)}
The random function returns a random number that lies between the given min and max values.
Third parameter can be used as a variable name to save random value
Related
Here I want to generate a random 9 digit number, I have achieved it using a config element->Random Variable.
Now I need to check if that number is unique or not, so for that, I have used If the controller and passed a condition checking the previous response message is true or false, if the output is false, then it will again generate a Random variable and this time a newly generated will be passed onto it.
But till how many times I will check this using If controller, so needs an alternative solution for the same.
Below is the hierarchy of my test plan:
Random variable
Sampler HTTP Request(Here random variable is passed)
If Controller(Condition: ${JMeterThread.last_sample_ok}==false)
Random Variable generated again
Sampler HTTP Request(Here random variable is passed)
If you need to generate a random number there is no need to "validate" it
If you need to generate an unique number the number has to be sequential
You can generate sequential numbers using Counter configuration element which should be set up like this:
once done you can refer the generated value as ${number} where required
More information:
What is mathematical difference between "random" and "unique"?
How to Use a Counter in a JMeter Test
I have a parameter that says default value 120 in the main that is linked to the initial number of agents for a particular agent. Now if I wanted that parameter to provide random numbers between 115 to 125 I tried using some distribution but it didn't work.
The error shown in the screenshot refers to type mismatch. triangular() returns a double but the parameter is of type int. This particular error can be fixed by changing the code to (int)triangular(2,5).
Admittingly, it would be good to understand what the purpose of this is in order to provide a more useful method as this approach will generate a sample value between 2 and 5 only at model start.
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 want to generate a dynamic random variable like ASDF123 during Post request and it should range from 7 digit to 10 digit and it should be unique everytime(if in case 500 threads). This field is required to generate order numbers. I'm new to Jmeter so not much idea.
My Scenarios is like this: .> I have to generate a variable in combination of alphabets and letters(like this ->ASDF12345) for post then need to provide same variable to get to retrieve the same order for each thread. It is working fine if I generate random variable ie. minimum 1000 to max:9999 and passing same to post and get. But the req is that the order no. can be alphabets & numeric/numeric/alphabet. Please suggest how to proceed for the same. And yes everytime it should be unique.
You can use Functions as:
RandomString - First parameter how many characters (10 in your case) and second parameter choose your combination of alphabets and numbers:
${__RandomString(10,abcdefg1234567890)}
Use Random if alphabets can be constant, and then add a number with 7-10 digits:
ASF${__Random(1000000,1000000000)}
Or use JSR223 element to use Random in your programming language as Java/Groovy.
You can try this:
${__javaScript(Math.random().toString(36).toUpperCase().substring(16))}
In jmeter it must looks like this:
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.