Is it possible to group user defined variables and get all variable names and values defined in the group dynamically in a Beanshell sampler. What I really want is to read all variables (name and value) defined in a User defined variable config element.
You can use var.getIterator as well as .getItaration and .incIterator to loop through the available variables in a beanshell pre/post processor.
See
http://jmeter.apache.org/api/org/apache/jmeter/testelement/VariablesCollection.html
and
http://jmeter.apache.org/api/org/apache/jmeter/threads/JMeterVariables.html
for more details on the methods available.
Related
we have to save regular expression extractor variable in one file --> "GJC_NUMZCAISSE" Type="Integer" Value="(.+?)"/>
Data Used for StoreClosing Transaction : Closing - cbrauth,store,baid,GJC_NUMZCAISSE
GJC_NUMZCAISSE variable will fetch from Login and save into one file and use corresponded data for closing as written above.
As per JMeter Documentation:
Properties are not the same as variables. Variables are local to a thread; properties are common to all threads, and need to be referenced using the __P or __property function.
Regular expression extractor produces a JMeter Variable which is visible only to the Thread Group where it's declared.
If you want to access the variable value in the tearDown Thread Group you need to convert it into a JMeter Property using __setProperty() function.
The property value can be read using __P() function where required
More information: Knit One Pearl Two: How to Use Variables in Different Thread Groups
I have an http request that uses an extractor to set a JMeter variable (lets call it test) from the body. When I look at the debug controller I can see this works fine. Next I want to append something to the beginning of the variable so I add a user defined variable node and add a variable with the name new and I set the value to ${test}. However when I look in the debug response I see ${test} instead of the value.
I tried the same thing setting the value manually in 2 different UDV nodes and it works fine, so how do I append to a JMeter variable declared in an extractor?
As per JMeter Documentation:
The User Defined Variables element lets you define an initial set of variables, just as in the Test Plan.
Note that all the UDV elements in a test plan - no matter where they are - are processed at the start.
So the User Defined Variables element will be read only once and only when the Test Plan is started.
If you need to overwrite the current variable with a new value you can go for i.e. __groovy() function, the relevant syntax would be something like:
${__groovy(vars.put('foo'\, 'some_prefix_' + vars.get('foo')),)}
Demo:
vars is a shorthand for JMeterVariables class instance, it provides read-write access to all JMeter Variables in the current thread scope. Check out The Groovy Templates Cheat Sheet for JMeter to learn what else you can do with Groovy scripting in JMeter tests
UDVs can't be used in dynamic way because they are process once at the start of the test.
Don't use UDV, use JSR223 Sampler (or PostProcessor) with vars;
vars.put("new", "prefix"+ vars.get("test"))
Another option is to use Set Variables Action plugin
I try to move a User Defined variable to variable in beanshell sampler.
(I need the User defined variable to be part of a bigger string.)
When I try to move it, or make a copy of it I get error 500
can someone please advise how can I put the value of user defined field in bean-shell variable and than use it (not need to change the user defined variable just want it value)
In this script I Want to put the value of $Expected_Offer_ID to String variable Expected_Offer
There are (at least) 2 options:
Put ${Expected_Offer_ID} to "Parameter" section of the Sampler. You will be able to access it as Parameters in your script
Use vars.get("Expected_Offer_ID); where required. vars is a shorthand to JMeterVariables class instance, it provides read/write access to all JMeter Variables
Remember 2 things:
Never refer JMeter Variables and/or Functions in the Script body like ${myVar}, either use aforementioned "Parameters" section or code-based equivalents as they might resolve into something which can cause script interpretation failure or unexpected behaviour. Moreover, in case of Groovy language it prevents compiled scripts caching
Don't use Beanshell for scripting. Since JMeter 3.1 it is recommended to use JSR223 Test Elements and Groovy language as Groovy is more Java-compliant and performs much better. See Apache Groovy - Why and How You Should Use It article for more detailed explanation, benchmarks and some tips on Groovy JDK enhancements usage.
JMeter variables are accessed through vars object, use:
String Expected_Offer = vars.get("Expected_Offer");
How can I assign a CSV file for the Global User Defined Variables. The CSV file will hold multiple request body data for Concurrent hits. Please find the User Defined Variables screen shot attached for reference.
You cannot, User Defined Variables is basically a collection of Arguments, so you cannot set anything but Name, Value and Description in form of Strings.
You can use __fileToString() function like:
but you won't be able to access different columns this way.
Be aware that CSV Data Set Config has "Sharing mode", you can control the scope and behaviour by amending the value.
I am having a problem with JMeter. I have a thread group with a web service request and an xpath exctractor. I set the reference name field in the xpath extractor to a user-defined variable that's defined outside the thread group. However, that user-defined variable is never set. I know because any subsequent web service request that references that user-defined variable fails.
Note that this is NOT a problem when I place the user-defined variables within the same thread-group as the web request. Then, the user-defined variable gets set.
How do I work around this bug? I need a way for one thread group to set a user-defined variable through the xpath extractor, so the user-defined variable can be used by another thread group.
Greetings,
This is actually a feature of Jmeter. (I know..I cringed just writing that). Variables are local to the thread group. The only way to share variable values between threadgroups is to use properties.
There are two functions you'll need to use:
${_setProperty} and
${_property}