Jmeter response assertion - jmeter

I have two HTTP requests and the output of first one result value should match with the second request output value..if not matched then fail..
i want to do this check in response assertion..
i have done below steps:
a) Using Regular Expression Extractor i have extracted the value from first HTTP request
b) Added Response Assertion for second request and now how to compare that value with the response of second request
How to Use JMeter Assertions in Three Easy Steps
please help.

Something like:
If "Request 2" response will contain the variable from the Regular Expression Extractor - it will pass, otherwise it will fail.
Replace the ${Variable_From_The_Regular_Expression_Extractor} with what you have in the "Name of created variable" in the Regular Expression Extractor.
References:
Response Assertion
Response Assertions in JMeter 3.2 - New and Improved

Related

Extracted Regex Value not getting passed into next POST request body in Jmeter

In my first request I am able to extract the value using Regular Expression Extractor which is clearly visible into the debug sampler. The value is extracted by setting the following options in Regular Expression Extractor:-
Name of Created Variable:- instanceUID
Regular Expression:- "InstanceUid":"(.*?)"
Template:-$1$
Match No:-1
Default Value:- (Blank)
The value that I want to pass in the next POST request is visible as:-
instanceUID_g1=2ab5dfb8-a217-4ff2-9025-523565b7b7ad
And the body for the next HTTP POST request is set like this:-
${"iInfo":{"InstanceUid":"${instanceUID_g1}","Registry":"${Registry}"}}
When this request seen in detail inside View Results Tree looks like:-
${"iInfo":{"InstanceUid":"${instanceUID_g1}","Registry":"AAX"}}
As seen the value of ${instanceUID_g1} did not get substituted in the POST body as was for variable ${Registry} which was taken from CSV config.
Being new to Jmeter can anyone suggest what did I miss?
Most probably your Regular Expression Extractor placement is not very correct, be informed about JMeter Scoping Rules concept
If you place Regular Expression Extractor as a child of the request - it will be applied to this request only
If you place Regular Expression Extractor at the same level as several requests - it will be applied to all of them
in the latter case it will be applied 1st to 1st sampler, then to Debug Sampler, then to 3rd sampler so on 2nd step it will be overwritten, most probably that's your problem
Also it appears that you're getting the data from JSON so it makes more sense to use JSON Extractor or JMESPath Extractor

Is there anyway to pass response of a HTTP sampler to request as another sampler in JMETER

I am testing rest API using Jmeter. In one scenario need to pass complete response of a http sampler to, another http sampler as a request dynamically. Any suggestions how to achieve this in Jmeter.
Add Regular Expression Extractor as a child of the request which response data you want to capture
Configure it as follows:
Name of created variable: anything meaningful, i.e. response
Regular Expression: (?s)(^.*)
Template: $1$
That's it, you should be able to refer the extracted value as ${response} where required.
Explanation of the regular expression:
() - grouping
(?s) - single line modifier
^ - line start
. - wild card character
* - repetition
More information:
JMeter: Regular Expressions
How to Extract Data From Files With JMeter
You can get all response using Regular Expression Extractor with regex accepting all characters
In next JMeter 5.2 version you will able to do it using Boundary Extractor by keeping Left and Right Boundary empty

Manipulating the request body of HTTP thread based on the data extracted from the previous HTTP response

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

Want to check for assertion failure in Jmeter

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.

Jmeter If controller with http code

I want to use if controller in my jmeter load testing. The test is:
do a post and get back an access token.
use that access token to get the next link.
My issue:
I have the access token and have used the post-assertion->regular expression extractor and got the access token from he http response. But now I don't know how to use the if control and ask it do next test only if the http response code is 200. And second question is can i still pass my regular expression value of access token into the if loop's http header manager?
attaching the screen shot of my jmeter.
Try to use Response Assertion to handle state of Request_Access_Token request (success/failure) depending on Response Code returned 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:
ThreadGroup
Request_Access_Token
Response Assertion
Response Field to Test: Response Code
Pattern Matching Rules: Equals
Patterns to Test: 200
Regex Extractor // your Access_Token extractor
IfController
Condition: ${JMeterThread.last_sample_ok} // will be TRUE if Response Assertion above is TRUE (i.e. response code = 200)
HttpRequest
// send extracted Access_Token along with request
...

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