Thread Group
BeanShell Sampler (calcuate parameter and put in user defined variable)
Loop
Java Sampler (with parameters).
Inside the Summary Report I see that the BeanShell Sampler are listed, and I don't want this as it affects the final average throughput ; how can this be remedied? Is there a substitute object?
I noticed that if I put in a BeanSell Pre Processor it gets called every time a Java sampler is run, which I don't want (tell me if I'm wrong).
You can invoke the following function anywhere in your Beanshell Sampler:
SampleResult.setIgnore();
More information: SampleResult.setIgnore() JavaDoc
Also be aware that starting from JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language for scripting as Groovy has much better performance comparing to Beanshell, see Apache Groovy - Why and How You Should Use It for details.
Related
Value returned from JMeter JSR223 Sampler using .md5() function.
MD5 value for same payload generated on Standard website
I think I am not able to parse it properly? Can someone please tell me where the problem is and how to fix it.
Thanks a lot in advance!
If you use something simple like foo you will see that your "Standard website" and JSR223 PreProcessor are generating the same value.
The question is how does your "Standard website" handle line breaks and other non-printable characters like whitespaces or tabs
So my expectation is that you should be asking your API developers regarding the request format, my expectation is that JMeter's checksum is correct.
You can look here for Groovy's implementation
More information on Groovy scripting in JMeter: Apache Groovy - Why and How You Should Use It
Jmeter version 4.0 r1823414,
Selenium/WebDriver Support plugin version 2.3,
java version 1.8.0_161.
While working with the Jmeter WebDriver sampler I was really impressed by the things it can do (quickly creating scripts for UI / performance testing). However, I wasn't able to utilize List (from java.util) interface while locating several web elements on the page. I did, as it was suggested in every WebDriver plugin tutorials, imported necessary namespaces java.util.*; and java.lang.util.*;.
In the Log Viewer there is an error
messageERROR c.g.j.p.w.s.WebDriverSampler: In file: inline evaluation of: ``import java.util.; import java.lang.; import org.openqa.selenium.*; import org . . . '' Encountered "=" at line 57, column 38.
where my line 57 looks like this
List<WebElement> deleteLinks = WDS.browser.findElements(By.xpath("${myEnumeratorDeclaredVariable}"));
According to Selenium docs method findElements(By by) has a signature of java.util.List<WebElement> My question today is: is there any specifically designed limitations with the WebDriver sampler plugin that prohibits of using some interfaces and classes from the native Java world?
Can I, as usual, create classes and methods inside the sampler? Please advise of someone as well interfered with these problems before.
P.S. Dmitri T answer was accepted. Please read comments below his response. If you are planning to use Java as your programming language for WebDriver sampler, be advised that it's a BeanShell interpretation of the Java, not the vanilla Java itself. For more modern features of the language (versions 6,7 and 8) please switch to groovy as an option as it supports 99% of the modern Java code.
Depending on what language you're using:
In case of default JavaScript you need to use JavaScript syntax like:
var deleteLinks = WDS.browser.findElements(org.openqa.selenium.By.xpath("${myEnumeratorDeclaredVariable}"));
Demo:
In case of Java you don't get "vanilla" Java, you get Beanshell interpreter which doesn't support the diamond operator so you need to remove it like:
List deleteLinks = WDS.browser.findElements(org.openqa.selenium.By.xpath("${myEnumeratorDeclaredVariable}"));
Don't reference JMeter functions and/or variables in script like "${myEnumeratorDeclaredVariable}", go for WDS.vars instead like:
List deleteLinks = WDS.browser.findElements(org.openqa.selenium.By.xpath(WDS.vars.get("myEnumeratorDeclaredVariable")));
More information: The WebDriver Sampler: Your Top 10 Questions Answered
If you use last version of Webdriver Sampler you need to select Groovy to be able to use the syntax you’re using.
Otherwise, by default it will use Javascript Rhino.
If issue persists, please show all your code.
I have some wscript / vbscript based code that calls a certain COM API. This code needs to be run periodically with lots of other Java based code that we run in order to gather metrics.
I know that I could take this code and translate it to something that uses Com4J, JNA or alike to mimic the behaviour in Java. But the vbscript code is "certified" by the vendor of the application we measure and I want to avoid debates that when I translated the code I changed the validity of the measurements (we had a comparable debate before)
A second alternative would be to simply call wscript.exe as a subprocess, have it write the results to stdout and parse that. But I would rather avoid that because then I would have to check for stalled subprocesses etc.
Is there a different way to call WSH from Java ? Perhaps by calling the Windows Scripting Host as a COM Object and passing it a pointer to the sourcecode or the source in a String ?
My application reads an XML request from WebSphere MQ and responds with single or multiple java object(s). While i can use JMS point-to-point sampler to post the XML request and subscriber sampler to catch the java object posted back by my application. Now i want the deserialization of the java objects to be able to assert the same. I have the required jar(s) that can help me in deserialization but i am not aware as to how i can perform this in jmeter. Can someone please provider directions as to how i can proceed?
You will need to have all the necessary dependencies in your JMeter's /lib folder.
You can then just add a JSR-223 sampler/post-processor that executes the Java code that you want using those dependencies. You can choose any of the scripting languages there, but be aware of the performance problems that some of them have (BeanShell caused GC lag for me).
Add JSR223 PostProcessor as a child of the JMS P2P Sampler and put the deserializing code into it. When you convert binary response to String you will be able to assign the value to a JMeter Variable as:
vars.put("variableName", variableValue);
and use it in Assertion (JMeter Assertions can target JMeter Variables).
It is recommended to use Groovy as JSR223 element language as JavaScript, Beanshell, etc. interpreters have some performance issues, besides they're quite out of date and Groovy scripts can be compiled into bytecode (assuming test element being properly configured) providing maximum performance.
See Beanshell vs JSR223 vs Java JMeter Scripting: The Performance-Off You've Been Waiting For! guide for instructions on how to setup groovy scripting engine support, best practices in regards to caching/using variables/etc. and some form of different scripting engines benchmark.
Has someone embedd a simple script language in a JAVA application.
My purpose is todivide the application in 3 part
Part 1) Hardcoded in java the application read from 2 source(Db, file,scocket,..., mind) and store 2 object.
Part2) The application in conjuction with the embedded scripting language make a a decisionedit the object and at the end call an exposed function eg: if the 2 object has the same namecall the function do nthing, if the name of the second object the next step isto call the update function.
Part3) the java application do the job that has been called.
Now i'm doing this with an application that use a JAR file with a lot of interface. So if i wont to expose only the step 2 ican give the specification of interface. The idea is to copy JDBC. Anyway it's difficult for tecnichan to write and compile in pere JAVA and create a JAR. So i'm looking for a good replacement. But it has to simple but powerful as jar replacement. I'm not trying to compile evrything in a single JAR i need them well separated.
THANKS
There is the Java Scripting API for this purpose.
Groovy for example provides an implementation to load, compile, interface, and execute Groovy scripts from within your Java application.
You can also try MVEL http://mvel.codehaus.org/
MVEL is a powerful expression language for Java-based applications.
It is fast anf easy to use.
expression language = java as scripting language