I wrote a Script in Test Case inside BeanShell PreProcessor and I want to use the value(Integer) in ThreadGroup.
By using vars.put() we can only share String type of values.
NOTE: I want to use the value in Number of Threads(users) block
There are at least 3 ways of doing this:
Use vars.putObject() - places an arbitrary Object into JMeterVariables
Cast Integer to String vars.put("foo", String.valueOf(bar));
Use bsh.shared namespace like:
bsh.shared.myInt = 15
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information on Beanshell scripting in JMeter tests
NOTE! you won't be able to amend number of threads in the current Thead Group using Beanshell test elements.
Related
I am setting my Jmeter variable using this using beanshell assertion:
${__setProperty(id_${__threadNum},${id},)}
And using this in another request like this:
${__P(id_${__threadNum},)}
and running the requests like this
However I want to run the loop count instead of the thread. So that i can run the request one by one. How can i change it to so it is loopNum instead of the thread
Can i use this below when i want to use the loop instead of the thread??
I am setting my Jmeter variable using this:
${__setProperty(id_${__iterationNum},${id},)}
And using this in another request like this:
${__P(id_${__iterationNum},)}
For getting the current iteration (1st loop - 1, 2nd loop - 2, etc.):
props.put("id_" + vars.getIteration(), vars.get("id"));
For getting all iterations (each time it will return 10)
props.put("id_" + ctx.getThreadGroup().getSamplerController().getProperty("LoopController.loops"), vars.get("id"));
Few more hints:
Don't inline JMeter Functions or Variables into Scripts, either use "Parameters" section or go for code-based equivalents instead, like in my above examples props stand for JMeter Properties, vars - for JMeter Variables, etc.), see Top 8 JMeter Java Classes You Should Be Using with Groovy article for more details.
Don't use Beanshell for scripting, since JMeter 3.1 you are supposed to use JSR223 Test Elements and Groovy language
I am using two JSR223 preprocessors,in which I want to use variable from one preprocessor into another preprocessor.
how can I use this in Jmeter??
Please assist me with an example.
In the first PreProcessor store some value into a foo JMeter Variable using vars shorthand for JMeterVariables class instance like:
vars.put('foo', 'some value')
In the second PreProcessor you can read the value using the same vars shorthand like:
String myString = vars.get('foo')
See Top 8 JMeter Java Classes You Should Be Using with Groovy article for more information on this vars shorthand and other JMeter API shortcuts available for the JSR223 Test Elements
The variable can be seen using Debug Sampler and View Results Tree listener combination.
I am using BeanShell assertion to passing value to next thread group. Now I wanted to use that value in next thread group. I am using set Property function and I can see in logs those values stored in variable.
Given you set some property value via __setProperty() function like:
${__setProperty(foo,bar,)}
you can read it using __P() function like:
${__P(foo,)}
If you want to fetch the value in a script - you can use props shorthand like:
String myValue = props.get("foo");
Also be aware that starting from JMeter 3.1 you should be using JSR223 Test Elements and Groovy language for scripting so consider migrating to JSR223 Assertion. If you're setting the property value from the script - don't inline JMeter Function, use the aforementioned props shorthand instead like:
props.put("foo", "bar"); // this creates "foo" property with the value of "bar"
You should be able to re-use the same code. Check out The Groovy Templates Cheat Sheet for JMeter article which covers your use case in particular and few more common tasks in general for more details.
I have to give dynamic values to url which takes number of users and their age , which can be selected though web page. but I want to give it in Jmeter using BeanShell PostProcessor.
Help me in this,since I'm new to Jmeter.
This is the path:
/destinations/packages?airports%5B%5D=LGW&units%5B%5D=000577%3ADESTINATION&when=29-05-2016&until=&flexibility=true&flexibleDays=3&noOfAdults=2&noOfSeniors=0&noOfChildren=1&childrenAge=3&duration=7114&first=0&searchType=search&searchRequestType=ins&sp=true&multiSelect=true
from what I've got looks like you can use CSV Data Set Config.
Create .txt file with the data you want to feed your test with;
Place the above .txt file to the folder where your .jmx file lies;
In your Test plan: Under your request sampler - place CSV Data set Config;
Then if you need to use your dynamic values within one threadgroup => refer these data as ${quanity}, ${age} in you url.
If you need to pass these values across the threadgroups => add BeanShell Assertion
Then (in the other Tread group) refer those as ${__property(_quantity)},${__property(_age)}.
Hope, it helps.
First of all you need Beanshell PreProcessor, not Beanshell PostProcessor.
All this parameters are basically name/value pairs which can be defined via HTTPSamplerBase class. HTTPSamplerBase class instance is available to Beanshell PreProcessor as sampler pre-defined variable so if you add the following code into the Beanshell PreProcessor "Script" area
sampler.addEncodedArgument("airports[]","LGW");
sampler.addEncodedArgument("units[]","000577:DESTINATION");
sampler.addEncodedArgument("when","29-05-2016");
sampler.addEncodedArgument("until","");
sampler.addEncodedArgument("flexibility", "true");
sampler.addEncodedArgument("flexibleDays","3");
sampler.addEncodedArgument("noOfAdults","2");
//etc
Your HTTP request will be populated with the values, you set via Beanshell.
JMeter Variables can be accessed via vars shorthand which stands for JMeterVariables class instance.
String airport = vars.get("airport");
sampler.addEncodedArgument("airports[]", airport);
//etc
See How to Use BeanShell: JMeter's Favorite Built-in Component article for comprehensive information on how to use Beanshell Test Elements in Jmeter.
Remember that it is recommended to avoid scripting where possible so if there is another way of implementing your task - go for it.
I have a java sampler that extends AbstractJavaSamplerClient. I would like to access the thread group loop counter value {__counter} from inside the java sampler. How can I achieve this?
ctx.getParameter("{__counter}"); doesn't seem to work where ctx is JavaSamplerContext
Thanks in advance.
__counter is a buildin function and not a parameter.
I would suggest to use it in one of the Pre-Processors such as User Parameters and store the returned value to parameter counterValue.
Then you can get the value in your java sampler with
ctx.getParameter("counterValue");
I believe that ctx.getVariables().get("{__counter}"); is what you're looking for.
See JavaDoc on JMeterContext (ctx is a shorthand for JMeterContext).
There is also some useful information on using JMeter API for different purposes in How to use BeanShell: JMeter's favorite built-in component guide.