Newly back to using Jmeter after a 3 year break and pretty confused by this error.
I have a JSR223 Preprocessor which is used for generating AWS signatures and it keeps generating errors of the following type:
021-10-20 13:47:40,101 ERROR o.a.j.m.JSR223PreProcessor: Problem in JSR223 script, Create AWS Signature
javax.script.ScriptException: javax.script.ScriptException: groovy.lang.MissingMethodException: No signature of method: org.apache.jmeter.protocol.java.sampler.JSR223Sampler.getMethod() is applicable for argument types: () values: []
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:158) ~[groovy-jsr223-3.0.7.jar:3.0.7]
at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:233) ~[java.scripting:?]
It's not causing the tests themselves to fail (weirdly) but it would be useful to stop these errors clogging our log files.
Help?!
It looks like you added the JSR223 PreProcessor as a child of the JSR223 Sampler which doesn't really have getMethod() function.
The function is available for HTTPSamplerBase class and derivatives.
In other words you need to put the JSR223 Preprocessor as a child of the HTTP Request sampler and it should start working as expected.
More information: How to Handle Dynamic AWS SigV4 in JMeter for API Testing
Make sure you uncheck checkbox on JSR223 Sampler >> Cache compiled script if available. It looks like script is cached and not recompiled, resulting in old code being run. Also make sure your old code is not hidden in the bottom of script editor window (scrollbar sometimes does not display correctly how much content is hidden).
Related
Thread Group A: use challenge-response to generate user token. Save as JMeter property.
Thread Group B: Run several samplers, one of which uses that token in a header.
Of course, the easy thing to do is run A, then B.
But let's say I want to use a "modular" approach and run only B.
I thought I recall seeing either in SO or Blazemeter that the JMeter object model allows one in a JSR223 Sampler to reference other samplers, even in another thread.
Other ideas also appreciated.
JSR223 Sampler cannot "call" another sampler neither from current nor in another Thread Group.
The only way of implementing this I can think of is storing the "common" logic as a Test Fragment and calling it where required using Module Controller
When using .Net application,
and checking error logs,
getting below error: Object reference not set to an instance of an object.
Most probably you're sending the wrong request due to missing or improperly implemented correlation
So if you have recorded a request using HTTP(S) Test Script Recorder most probably there is at least one parameter there which is supposed to be dynamic, to wit
extracted from the previous response using a suitable JMeter Post-Processor
stored into a JMeter Variable
and the dynamic variable to be sent along with the request instead of recorded hard-coded value
In .NET web applications the most commonly used parameter is ViewState, however other may also be required like EventValidation
so given you properly handle these dynamic parameters you should start getting "good" responses, see ASP.NET Login Testing with JMeter for example handling of the dynamic parameters.
Also don't forget to add HTTP Cookie Manager to your test plan.
I am using a faker.jar plugin to generate random data inside json file
The JSON file is like
{
"name" = "${__BeanShell(new com.github.javafaker.Faker().name().fullName())}"
"id" = "${__BeanShell(new com.github.javafaker.Faker().IdNumber())}"
}
and in jmeter i am using a http sampler
This is working fine, but now i want to evaluate the request with response, so i want to save the request body inside a variable and pass that variable to http request and then use post process to evaluate request against response, but i am unable to use ${__eval()} function inside preprocessor.
How to fix that
Add JSR223 PreProcessor as a child of the HTTP Request sampler
Put the following code into "Script" area:
vars.put('foo', sampler.getArguments().getArgument(0).getValue())
3 That's it, the PreProcessor will fetch the body data from the HTTP Request sampler and store it into ${foo} JMeter Variable.
Be aware that according to JMeter Best Practices you should be using __groovy() function instead of __Beanshell() so consider amending your JSON file on next available opportunity.
Be also informed that JMeter provides some built-in functions allowing generation of random values i.e. __Random(), __RandomString(), __UUID(), etc. so you might even discard your 3rd-party library as JMeter built-in functions provide better performance.
I have created a multi-layer build using build.dojotoolkit.org (my first attempt) with 3 layers: dojo.js, dojox.js, dijit.js. Each js file is uploaded in its own folder (dojo,dojox,dijit).
When I run the code, I would expect it to look in dijit.js to get the form modules like dijit.form.TextBox. But instead it tries to load dijit/form/TextBox.js and of course ends up with a 404 error.
What am I doing wrong?
The files are here if it helps:
http://usermanagedsolutions.com/Demos/Pages
Manually include each layer in a script tag on the page.
<script src="path/to/dojo.js" />
<script src="path/to/dojox.js" />
<script src="path/to/dijit.js" />
This will make available all modules that you have defined in the build. When you require the text box, Dojo will see that it has the code and will not make the XHR call.
Even though you do not have the intention of using the individual files, you may want to put them on the server as well. This way if someone forgets to add the file to the build, the penalty incurred is an xhr request, as opposed to a javascript error.
Re: AMD
When you include your layers in the manner that I described above, you are not loading all the modules that you included the build - you are just making the define functions available without having to make xhr requests.
If you look at the js file that is output from the build, the file contains a map of the module path to a function that when called will define the module.
So when you write the following code
require(["dijit/form/TextBox"], function(TextBox){
...
});
AMD will first determine if dijit/form/TextBox has already been defined. If so it will just take the object and execute the callback.
If the module hasn't already been defined, then AMD will look in it's cache to see if the define code is available. When you include your script files, you are providing a cache of define functions. AMD finds the code to define the module. It calls this define function and the result is the object that is passed into the callback. Subsequent requires for dijit/form/TextBox will also use this object as described above.
If the module hasn't already been defined and AMD does not find the define function in its cache, then AMD will make an XHR request back to the server to try to locate the specific module code. The result of the XHR call should provide the define function. AMD will call the function and use the result as the object to pass into the callback. Again, subsequent requires for dijit/form/TextBox will also use this object.
The Dojo build, provides the ability to 1) minify the code and 2) combine it into fewer files that need to be requested from the server.
AMD allows you to write code that can run in either environment (using built files or the individual files) without having to make modifications.
The PHPUnit Selenium base class has an option to make a screenshot on failure, which is a huge help in finding out why the test failed. The selenium server, however, returns an error instead of a failure on any error condition other than explicit assert* calls (such us trying to do something with a non-existent element). If I try to make a screenshot after the server reports the error, I get another error saying that the server already discarded the session. Is there any way to change that behavior?
Update: this is because PHPUnit breaks the connection when it receives an error. I was able to change it by some (rather ugly) manipulation of the PHPUnit code.
Make those interactions as test cases.
For example in perl,
If it is written as below and fails due to a non-existent element. the script will error out
$sel->type("email-id","trial\#trial.com");
While if the above step is made as a test case by writing it as follows
$sel->type_ok("email-id","trial\#trial.com");
If there is a non-existent element, the test case will only fail, and the script will continue.
So using TAP (test any protocol) by using the module use Test::More; , if _ok is added after a function, the function return will be used to determine the fate of the test case.
ie. - A return of 'O' means the test Failed
and A return of '1' means the test Passed
It is not the Selenium server but the SeleniumTestCase class for PHPUnit 3.4 which automatically sends a stop command when it detects an error (Driver.php line 921). PHPUnit 3.6 seems handle errors better.
I think you can overwrite method 'travelbox' and make something like this:
public function onNotSuccessfulTest(Exception $e){
file_put_content('/xxx/xxx.jpg', $this->currentScreenshot());
}