I'm facing a situation where I need to build a request string dynamically before sending it in an HTTP sampler. I'm choosing a random number between 15 and 50, and then for that many times, I append an XML tag with a parameter. So if my random number is 22, the this appended string (I call it ricString) will contain the same xml tag 22 times! And all I want is for it to use 22 different parameter values from the CSV file. But it doesn't do that. It takes the same value 22 times, and then uses the next value in the next iteration. Here is what I have written in my beanshell pre-processor.
counter = ${__Random(15,50)};
i = 0;
String ricString;
while(i<counter)
{
i++;
ricString = ricString + "<req:RCS>${__StringFromFile(...\RIC_3_01_Flag.csv)}</req:RCS>";
}
I have tried using both __StringFromFile as well as __CSVRead(filename, next) functions but no luck. It just does not update the value when inside the while-loop. Anyone know what I'm doing wrong?
Use a CSV DataSet that you nest into your loop (this is very important).
Then just use that variable that your CSV DataSet defines in your XML.
Related
I want to test a Get Request with list of values. I dont want to use CSV ,
so i started using Beanshell Preprocessor and has those values in Array. Then used for loop to use those values and send to Get Request in HTTP Request. Every this was Successful except sending values to Get request. It is reading all values and sending the last read value to Get request.
Question : I want my request to run for each value when code reads the data one by one.
var TtValuedetails;
int i;
n=22;
String[] ttvalue = {"34324324224","fdadsfadsf","dfdsfdsfds","dafadsfa",
"45435435","dfadsfads"
};
for(int i=0;i<n;i++)
{
if(i==0)
{
TtValuedetails=ttvalue[i];
if(ttvalue[0]=="34324324224")
{
vars.put("TtValuedetails",TtValuedetails);
log.info(TtValuedetails);
log.info("first value is executed" );
Org.Apache.......startRequest();
}
}
} ;
We cannot help you without seeing the full code and knowing what you're trying to achieve but one thing is obvious: you should not be using Beanshell, since JMeter 3.1 it's recommended to use Groovy for scripting.
Current problem with your code is:
ttvalue array contains 6 elements
n=22
the line TtValuedetails=ttvalue[i]; will cause failure on 7th iteration of the loop due to IndexOutOfBoundsException
If you want to send a request for each value of the ttvalue array the easiest is converting it into separate JMeter Variables like:
ttvalue_1=34324324224
ttvalue_2=fdadsfadsf
etc.
and using ForEach Controller for iterating the values.
Example Groovy code for storing the values into JMeter Variables:
String[] ttvalue = ["34324324224", "fdadsfadsf", "dfdsfdsfds", "dafadsfa",
"45435435", "dfadsfads"];
for (int i = 1; i <= ttvalue.size(); i++) {
vars.put("ttvalue_" + i, ttvalue[i - 1]);
}
The "Payload" picture below shows 3 line items for GROUND_SERVICE and all the values such as SERVICE_TYPE_CODE, ORIG_ZIP, DEST_ZIP, UNITS_SHIPPED, START_DATE will have to be parameterized. I cannot always send request for 3 GROUND_SERVICE line items. I need to send random number of GROUND_SERVICE lines, in this case between 1 to 3. In reality I will have about 20 line items. How can I do that while parameterizing all the values within GROUND_SERVICE element?
Payload
EDITED QUESTION BELOW AFTER RECEIVING DMITRI'S SUGGESTION:
I think the suggested code allows me to send random number of GROUND_SERVICE blocks, and if so solves half of my problem. However, I cannot randomize the data elements such as ORIG_ZIP, UNITS_SHIPPED, etc. They have to be pulled from CSV file. How can I do that? Just to be clear, I made up these data elements to protect sensitive data. In reality the Request contains different kind of data elements with test data that go through a rule engine, and therefore I must pull actual data from CSV file.
Add JSR223 PreProcessor as a child of the HTTP Request sampler you want to parameterize
Put the following code into "Script" area:
import groovy.xml.MarkupBuilder
import org.apache.commons.lang3.RandomUtils
import org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy
def writer = new StringWriter()
def xml = new MarkupBuilder(writer)
static def getRandomGroundServices(MarkupBuilder xml) {
1.upto(RandomUtils.nextInt(1, 4), { number ->
xml.GROUND_SERVICES() {
GROUND_SERVICE() {
SERVICE_TYPE_CODE(number + "DAY")
ORIG_ZIP(RandomUtils.nextInt(11111, 99999))
UNITS_SHIPPED(RandomUtils.nextInt(1, 10))
START_DATE(new Date().plus(number).format('yyyy-MM-dd'))
}
}
})
};
getRandomGroundServices(xml)
vars.put('payload', writer.toString())
That's it, now you can refer the random payload as ${payload} where required:
Each time you run the request different number of GROUND_SERVICE elements will be sent to the backend with random UNITS_SHIPPED and ORIG_ZIP
References:
Groovy: Creating XML
Apache Groovy - Why and How You Should Use It
Below is the code which i have been trying to address the below UseCase in JMETER.Quick help is appreciated.
Usecase:
A particular text like "History" in a page response needs to be validated and the if the text counts is more than 50 a random selection of the options within the page needs to be made.And if the text counts is less than 50 1st option needs to be selected.
I am new to Jmeter and trying to solve this usingJSR223 POST processor but somehow stuck at vars.put function where i am unable to see the desired number being populated within the V paramter.
Using a boundary extractor where match no 1 should suffice the 1st selection and 0 should suffice the random selection.
def TotalInstanceAvailable = vars.get("sCount_matchNr").toInteger()
log.info("Total Instance Available = ${TotalInstanceAvailable}");
def boundary_analyzer =50;
def DesiredNumber,V
if (TotalInstanceAvailable < boundary_analyzer)
{
log.info("I am inside the loop")
DesiredNumber = 0;
log.info("DesiredNumber= ${DesiredNumber}");
vars.put("V", DesiredNumber)
log.info("v= ${V}");
}
else{
DesiredNumber=1;
log.info("DesiredNumber=${DesiredNumber}");
vars.put("V", "DesiredNumber")
log.info("v= ${V}");
}
def sCount = vars.get("sCount")
log.info("Text matching number is ${sCount_matchNr}")
You cannot store an integer in JMeter Variables using vars.put() function, you either need to cast it to String first, to wit change this line:
vars.put("V", DesiredNumber)
to this one
vars.put("V", DesiredNumber as String)
alternatively you can use vars.putObject() function which can store literally everything however you will be able to use the value only in JSR223 Elements by calling vars.getObject()
Whenever you face a problem with your JMeter script get used to look at jmeter.log file or toggle Log Viewer window - in absolute majority of cases you will find the root cause of your problem in the log file:
In my get htttp request, I get an array of ids ex: list=[1, 2, 3.....1000]
And then for my next http request, I want to pass all the values in the list 10 at a time, so it will be 100 requests total and each time, it takes 10 values from the list array. I'm using a loop controller to call the http request 100 times. but I dont know how to retrieve 10 values at a time, and then go to the next 10, next 10 until all values are used.
How should I do that?
Add a regular expression extractor to your get request as a child.
Add the following properties shown in the screenshot to extract List
Add a Beanshell sampler/ JSR223 sampler and add the following code.
The code below creates a series of variables and store series of 10 values in a variable starting from Final_0 to Final_99
import java.util.Arrays
String complete_List=vars.get("List");
String[] complete_List_Array = complete_List.split(",");
int i;
for(i=1;i<=complete_List_Array.length;i++)
{vars.put("List_"+i,complete_List_Array[i-1]);}
int j;
int loopcount=complete_List_Array.length/10;
vars.put("loopcount",Integer.toString(loopcount));
for(j=0;j
{
StringBuilder sb = new StringBuilder();
sb.append("[");
for(i=j*10+1;i<=(j+1)*10;i++)
{
sb.append(vars.get("List_" + i));
if (i < (j+1)*10)
sb.append(",");
}
sb.append("]");
vars.put("Final_"+j,sb.toString());
}
vars.put("counter","0");
Add a loop counter and mention loop count as ${loopcount} as shown below
You can add HTTP Request as a child of loop counter and to pass series of 1o value at a time use ${__V(Final_${counter})}
Add a beanshell post processor to the http request to that will increment the counter
add the following code to the beanshell sampler
int counter = Integer.parseInt(vars.get("counter")) +1;
vars.put("counter",Integer.toString(counter));
You can see in the results its passing series of 10 values at a time and loop will run for 100 times
For more info on beanshell please follow the link
Please let me know if it helps.........
Considering you have the list array available at your disposal by using any extractor.
Extract the sublist from the array and put them in properties. Then, fetch the properties where ever you want it.
In the below I am fetching the sublist from the array and putting it in jmeter properties.
Here, I am fetching the values from the properties. This is just for demonstration and you dont need this. After putting list in properties just fetch in HTTP sampler as shown in the last image.
Now, to fetch it in HTTP sampler you can use loop and counter and fetch the properties using groovy. Loop for iteration and counter for increment the variable mylist_x.
Hope this helps.
How to ensure/handle duplicate values are not getting captured while using regular expression?
In my scenario i need to capture multiple offers from my response. But cant use the same offers again and again within the transaction
There are multiple ways to do this. If you are using the default Regular Expression Extractor, the problem is it creates the variables (eg: offer_1, offer_2 etc), ready to go with the execution. It would've been easier if it returned a ArrayList of some sort where we can remove the duplicates. What I am about to suggest is to add those variables to a list in a JSR223(groovy) sampler/post processor then convert them back to usual jmeter variables to use in the usual jmeter script flow.
Snippet:
I created a sample script as per your description which would return multiple offers with some duplicates. Following is the state of jmeter variables before post processing.
offer_1=RUSSIA
offer_1_g=1
offer_1_g0=offer="RUSSIA"
offer_1_g1=RUSSIA
offer_2=UK
offer_2_g=1
offer_2_g0=offer="UK"
offer_2_g1=UK
offer_3=ICELAND
offer_3_g=1
offer_3_g0=offer="ICELAND"
offer_3_g1=ICELAND
offer_4=USA
offer_4_g=1
offer_4_g0=offer="USA"
offer_4_g1=USA
offer_5=UK
offer_5_g=1
offer_5_g0=offer="UK"
offer_5_g1=UK
offer_6=USA
offer_6_g=1
offer_6_g0=offer="USA"
offer_6_g1=USA
offer_7=USA
offer_7_g=1
offer_7_g0=offer="USA"
offer_7_g1=USA
offer_matchNr=7
As you can see above there are duplicates in the variables. Put the following Groovy code in a JSR223 post processor with groovy as language selected.
// Count of offers extracted by Regular Expression Extractor
def count = Integer.parseInt(vars.get("offer_matchNr"))
// An empty list which will store the offers
def offer_list = []
for (int i = 1; i <= count; i++){
def offer = vars.get("offer_" + i)
offer_list.add(offer)
}
// Removes the duplicates in the list
offer_list.unique()
// Following one liner adds new variables but with only unique offers in similar format as jmeter variable.
offer_list.eachWithIndex{ it, index -> vars.put("unique_offer_${index+1}", "${it}")}
After post processing:
unique_offer_1=RUSSIA
unique_offer_2=UK
unique_offer_3=ICELAND
unique_offer_4=USA