JMeter using a variable as input for a response assertion pattern - jmeter

I have a test plan in JMeter that has a Response Assertion where I'd like to use a variable that comes from a CSV Data Set Config. So my Pattern looks like:
${assert1}
Which corresponds (at least in my thoughts) to what comes from the file used in CSV Data Set Config, but it doesn't work. I have seen multiple suggestions to use a Regular Expression Extractor, but the examples I saw refer to something they're trying to capture from a page. In my case I am using an external csv file.
My question: how can I use a variable as input for a Response Assertion pattern ?

I have successfully used a CSV Data Set Config as a source of string that I use in a url parameter, and then use a Response Assertion to seek out that parameter in the response.
Variable name: P.
URL: /product/${P}.
The response assertion Parterns to Test: ${P}.
I wonder if it is not necessary to use the CSV data variable in the request in order for it to be available in the response assertion?

If my understanding is right,
here your problem:
You want to use the value from your CSV as part of URL and that too via variable.
Solution:
Configure your CSV Data Set Config like this:
Filename: url csv path
variable name : assert1
Delimiter : , (if your CSV comma separated)
leave remaining unchanged
That's it you can use the variable assert1 anywhere: ${assert1}.

Related

How to replace a string in a variable that came from a CSV Data Config?

In my JMeter test plan, I have two CSV Data Config elements.
CSV Data Config-element-requestBodies: This CSV Data Config element has a variable named "requestBody". In the corresponding CSV file, each line has an XML request with a placeholder string.
CSV Data Config-element-subject: variables. This CSV Data Config element has a variable name "subjectDn". In the corresponding CSV file, each line has a distinguished name (DN) for a user.
The "requestBody" variable will contain an XML request from the CSV file that has the request bodies, with a placeholder string and I want to replace that placeholder with the contents of the "subjectDn" variable, and then use the modified "requestBody" variable in the HTTP Request element.
In other words:
Replace the placeholder string in the ${requestBody} with the value in the ${subjectDn}, then
Use the modified ${requestBody} in the HTTP Request
How can I do that? What is the easiest/least overhead way of doing that?
I've tried using the "__evalVar" function (see https://am.net/lib/tools/NetworkManagement/apache-jmeter-2.8/printable_docs/usermanual/functions.html), but it looks like that is not able to do the replacement when the string is from a CSV file?
Thanks in advance!
Jim
Wrap your ${requestBody} into __eval() function, it will allow JMeter to resolve JMeter Functions and Variables which are present as "placeholders" in the CSV file to their respective values.
${__eval(${requestBody})}
Also if you consider scripting to accomplish your requirements be informed that starting from JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language. More information: Apache Groovy: What Is Groovy Used For?
I was able to get this woring by using a Beanshell pre-processor and some Java code that does var.get() and then Java String replaceall() and then var.put().

Graphql in jmeter

I am using graphql in jmeter for API testing. Where in graphal we have the query and variable section.
My query would require a client ID which is int. Where as in Variable if I try to pass "{clientid : ${clientid}}"(here I am passing the CSV config variable, for testing the app for multiple users). But it is throwing an error like $ is unauthorised and expecting a (json,null,true or false).
Please help me out how I can pass the clientid which is a csv config variable.
Thanks in advance.
It looks like your CSV Data Set Config setup is not very correct so the JMeter Variable placeholder isn't getting substituted with its respective value from the CSV file.
We cannot help without seeing first couple of lines of the CSV file and your CSV Data Set Config setup so far I can only suggest re-visit the configuration and cross-check it with JMeter Documentation
You can observe JMeter Properties and Variables with their values using Debug Sampler and View Results Tree listener combination, if you don't see clientid line there - the variable is not set and JMeter sends it as it is, to wit "{clientid : ${clientid}}" and doesn't substitute ${clientid} with the value from CSV

JMeter how to select randomely from a extracted set of values

I have a requirement to use randome url from a url list I extract from a json response.
Say I extract them in this mannser
imageUrls_1=https://blah01.com
imageUrls_2=https://blah02.com
imageUrls_3=https://blah03.com
imageUrls_4=https://blah04.com
imageURLs_matchNr=4
In a following JSSR223 sampler I was able to generate a variable called "url" with one of the url names selected randomely
("imageUrls_1","imageUrls_2",etc)
I was thinking to use them in my HTTP request to get the correcponding url as follows. ${${url}}. But soon found out its not giving me anything other than "${${url}}" :(.
JMeter Is it possible to place a varibale inside a varible name?
Basically I need to use one of the extracted urls randomely in my HTTP request.
The easiest way is going for __V() and __Random() functions combination like:
${__V(imageUrls_${__Random(1,${imageURLs_matchNr},)},)}
Demo:
More information: Here’s What to Do to Combine Multiple JMeter Variables
Use __V function
${__V(url)}
The V (variable) function returns the result of evaluating a variable name expression.

How to Map RegEx variables with BodyData fetched from CSV Files

CSV Data Config from JMeter contains following -
File.csv Contains following
GetAllOrderItems.txt contains following
{"dataRows":[],"orderGuid":"${orderGuid_1_g1}","facilityPk":"0","jtStartIndex":0,"jtPageSize":100,"jtSorting":"SKU ASC","isMap":"1"}
orderGuid_1_g1 is fetched from Regular Expression extractor
I passed following to JMeter body data
When I execute JMeter test, I can see follwing
{"dataRows":[],"orderGuid":"${orderGuid_1_g1}","facilityPk":"0","jtStartIndex":0,"jtPageSize":100,"jtSorting":"SKU ASC","isMap":"1"}
However, I want ${orderGuid_1_g1} to be fetched from Reg Ex of previous HTTP Request.
I want following
{"dataRows":[],"orderGuid":"644e1dd7-2a7f-18fb-b8ed-ed78c3f92c2b","facilityPk":"0","jtStartIndex":0,"jtPageSize":100,"jtSorting":"SKU ASC","isMap":"1"}
Code works well, If i did not fetch Body data from text and directly insert below code inside body of HTTP Request
{"dataRows":[],"orderGuid":"${orderGuid_1_g1}","facilityPk":"0","jtStartIndex":0,"jtPageSize":100,"jtSorting":"SKU ASC","isMap":"1"}
If your file contains nested JMeter Variables you need to wrap your __FileToString() function call in __eval() function like:
${__eval(${__FileToString(${GetAllOrderItems})})}
Demo:
More information: Here’s What to Do to Combine Multiple JMeter Variables
JMeter does not interpret variables when you load content from a file.
Besides, for a load test using __FileToString function is not advised unless it is used for setup for example which is not the case here.
So just put the JSON Body request in the request body, it will be better for readability.
If you still want to do that, follow Dmitri Answer.

JMeter JDBC Sampler extract more than one column values

I have a sql like the following in JDBC Sampler of JMeter
select id,code from table where .....
how do I extract the value of the two columns.
Are you asking how to extract a value from the response?
If so, use the post-processor "regular expression extractor", attached to the JDBC request.
If you want to extract all data, you can use he post processor "Save Response to a file".
http://jmeter.apache.org/usermanual/component_reference.html#Save_Responses_to_a_file
What is good is that the output for each request is extracted to a separate file, very useful if you use the CSV data config with your request. You just specify the prefix for files.
The output will look like :
result_save_1.plain
result_save_11.plain
result_save_13.plain
result_save_15.plain
result_save_17.plain
ETC...
The Variable Name is very useful because it describe how you can reintegrate thoses files in JMeter using the variable name.
JMeter is a killer app!

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