I'm a newbie in using Jmeter and searching for a solution solving the following problem: I have a suite that contains a set of atomic HTTP requests and the goal is to save response bodies into an xml file. Currently, I'm handling that with using "Save Responses to a file listener", but need to be able to save separately error and OK responses in different XML, based on response HTTP code and body string.
to illustrate the case with dummy code
if (HTTP response code == 200 OK && body does not contain "ERROR") then
save response to file (%path%\responsename_OK.xml
else
save response to file (%path%\responsename_ERROR.xml
My bad, Nikolay, I forgot you wanted it in xml format...
Well, the easiest way is to add 2 Simple Data Writers (SDW) to each HTTP Request where 1 SDW logs only errors and the other logs only successes.
The Pro's are
it's easy and once you set it up for 1 HTTP Request, you can simply copy it to every other HTTP Request
Each success or failure with be appended to the corresponding .xml file
You can define as much or as little detail as you want
The Con is you add 2 elements to each Request, thus increasing your test size twice as much as you would with a BeanShell Assertion. (if that's a concern for you.)
If you want a more detailed way, you could try a BeanShell Assertion scripted with XML Parsers and XPath Assertions like outlined here.
Use Response Assertion (in fact you will need 2: one for Response Code and another one for Response Body checking) in order to fail the request basing on these criteria
Use If Controller for setting a condition:
${JMeterThread.last_sample_ok} will be triggered if previous sampler is successful
!${JMeterThread.last_sample_ok} - will fire if previous sampler fails
N.B. you should have any Sampler under the If Controller so it could work.
Related
I want to manipulate the request body of HTTP thread based on the data extracted (using 'Regular Expression Extractor') from the previous HTTP response.
Here is the scenario:-
I have extracted the statusFlag and statusId from 'HTTP request 1' as:
Ref name: status
Reg. Exp: "statusFlag":"(\w+)","statusId":"(\w+)"
So, first I want to check that the value of statusFlag is 'New' or not.
If it is New then I have to proceed and feed statusId in next HTTP request or else display statusFlag mismatch.
Need help. Got stuck badly.
I believe Response Assertion is what you're looking for. Add it after the Regular Expression Extractor and configure it as follows:
Apply to: JMeter Variable -> statusFlag (or your reference name)
Pattern Matching Rules: Equals
Add New as a "Pattern to Test"
The assertion will check whether "statusFlag" is "New" and if not - it will fail the sampler and report the expected and the actual value.
Optionally you can add If Controller after the Response Assertion, use ${JMeterThread.last_sample_ok} as a condition and place 2nd request as a child of the If Controller - it will be executed only if "statusFlag" is new.
See How to Use JMeter Assertions in Three Easy Steps guide for more information on conditionally setting pass or fail criteria to requests in your JMeter test.
That's how your Jmeter project should look like.
Regular Expression Extractor stores extracted value in ct variable that can be accessed in If Controller as "${ct}" == "yourvalue" and, if true, can be also sent as a part of Request 2 body using the same ${ct} reference.
Jmeter project structure
I would like to profile a REST API using JMeter. I would like to write the test plan such that each user thread performs the following actions:
creates a new resource using HTTP POST
If HTTP 201 Created is received, then extract the new resource URL from the Location header of the HTTP response.
Subsequently update the resource using HTTP PUT
Loop in 3 and measure the response time
It's unclear to me how to use JMeter's conditional logic to break up the tests into these discrete parts. I would appreciate any insight anyone can provide on how to implement this.
You need to use If Controller to express this logic.
You can use Regular Expression Extractor to extract Response code (In field to check, check it and extract response code in a Variable)
Use the previously extracted variable in the If Controller condition
I am building out a test suite in jmeter and want to set the assertions to the initial responses that I get from the api calls. Is there any way to do this besides copy pasta?
For clarity each individual call has its own assertion, which for the moment is the response it is receiving.
I want the assertions to be populated by the responses.
If I understood currectly - you are coming up with some JMeter-Baseline script - you also assume that the response you get now is correct - that is what you expect to get it in future as well , so you want to put the response data in the assertion.
If yes, JMeter will not remember the initial responses. So you need to create your script accordingly.
You can have a beanshell postprocessor to write the the responsedata in a CSV file. Later you modify the script to look for the assertion string from CSV file to compare. This is the statement to get the Response Data.
prev.getResponseDataAsString()
As per How to Use JMeter Assertions in 3 Easy Steps guide, JMeter Assertions have their scope.
If you put an assertion at the same level as all requests it'll apply to all of them. See image below for explanation:
I would use a CSV file with the URL and the assertion string you want to match.
I am a beginner in JMeter. I want to check for Assertion Failures in my script. I want to continue my transaction for a number of iterations after a single log in attempt, and I want to log out only if an error occurs. For that, I want to check if an error occurred in the script.
Is it possible by comparing assertions in JMeter?
If not, is there are any other way to find that?
Define first indicator(s) that will mark response as erratic (Response Code, keyword, etc.).
Try to use Response Assertion to handle state of your request (success/failure) depending on indicators above and then use IfController along with pre-defined JMeterThread.last_sample_ok jmeter's variable - whether or not the last sample was OK - true/false.
Schema will look like below e.g.:
ThreadGroup
LOGIN REQUEST
...
YOUR HTTP REQUEST HERE
Response Assertion
Response Field to Test: Response Code
Pattern Matching Rules: NOT Equals
Patterns to Test: 200
Regex Extractor
IfController
Condition: ${JMeterThread.last_sample_ok} // will be TRUE if Response Assertion above is TRUE (i.e. response code != 200)
LOGOUT REQUEST
...
In addition to the answer above I would recommend you:
Add error checking to your script - assertions that the responses are
valid for a given reques
Use Firebug to view network traffic when you need to debug your test
script
Use a regular expression extractor to retrieve a dynamic value from a
response and re-use it in a later request
To get the idea you can follow JMeter error checking video tutorial.
FYI: Assertion details provided.
Hope this helps.
Is there a way to overwrite the http response headers returned in Jmeter? I'm testing a web service that returns JSON and when an invalid request is sent, the JSON response returned doesn't contain application/json (or any for that matter) in the response header. If I save the response to a file, I see the actual JSON returned, but looking at the response in a Results tree doesn't show a response. Unless there is a way to load the response from file and parse the error message from the file, I'm hoping to somehow overwrite the HTTP response header and force jmeter to treat the response as JSON.
Any suggestions are welcome!
Using a beanshell post processor, you can write some script that would force the value for the header, or write out to a file.
You can also add a listener that would write the results to file for you. Granted - this is less convenient for debugging then Tree View.
As it turns out JMeter does not support response header overloading. While the response isn't displayed in the Results tree, it is actually available to other assertions. I was able to still provide assertions to validate responses even though the response was missing from the GUI.