Detailed steps please, tried to use both HTMLUnit Driver Config and PhantomJs config, but no luck
How to run headless browser in jmeter for WebDriver Samplers, detailed steps please, tried to use both HTMLUnit Driver Config and PhantomJs config, but no luck. My requirement is I need to convert selenium script into jmeter script, I have created Webdriver script in jmeter, I need to run it with 100 users, as I donot want to launch 100 instances of browser, I want to run it as headless browser, directly creating jmeter load script is not an option as request is using a dynamic valuse which is not available in server response.
You will launch 100 instances of browser in any case, no matter whether browser is headless or not and most probably your JMeter system will not be able to handle that many browser instances and you will have to go for distributed testing
Your "no luck" statement doesn't make sense as information is not sufficient to come up with solution.
For HTMLUnit it is enough to add HtmlUnit Driver Config and WebDriver Sampler itself
For PhantomJS Driver Config you need to download PhantomJS binary and specify location under PhantomJS -> Path to PhantomJS executable input. Of course add WebDriver Sampler with your code
In both cases you will need to have Selenium client libraries somewhere in JMeter Classpath so make sure to install WebDriver Sampler using JMeter Plugins Manager - it will automatically take care of the dependencies.
If JMeter doesn't work as expected first of all check jmeter.log file for any suspicious entries - in 99% of cases it contains enough information to get to the bottom of the issue.
Also be aware that dynamic value is not a showstopper, in the absolute majority of cases it is somewhere in response (either in body, or in URL or in cookies, or in headers), in remaining cases it can be calculated or generated.
Related
I'm following https://www.swtestacademy.com/performance-testing-jmeter-selenium-grid/ document and I'm trying to use chrome browser in headless mode with the Selenium Grid.
I dont find an option in 'Remote Driver Config' sampler to do that. How can I set up headless mode for remote driver? ( I'm planning to use selenium grid)
If you're "following" an external resource you should ask the question there, not here.
As of WebDriver Sampler 3.3 it is not possible, if you want to continue "following" the article you will have to switch to the JSR223 Sampler and Groovy language where you will have the full freedom of initializing the RemoteWebDriver and passing --headless and whatever else arguments you want to it.
As per Selenium documentation:
Performance testing using Selenium and WebDriver is generally not advised. Not because it is incapable, but because it is not optimised for the job and you are unlikely to get good results.
As per WebDriver Sampler documentation:
Note: It is NOT the intention of this project to replace the HTTP Samplers included in JMeter. Rather it is meant to compliment them by measuring the end user load time.
so it looks like "following" the document is not the best idea and you should reconsider your approach
when i was run jmeter webdriver script multiple browser is open and this condition not get accurate load testing report so how i get proper load testing report without open Browser?
As per WebDriver Tutorial
Note: It is NOT the intention of this project to replace the HTTP Samplers included in JMeter. Rather it is meant to compliment them by measuring the end user load time.
So you should not be using WebDriver Samplers to create the main load as browsers are very resource intensive and most probably you won't be able to kick off more than 5-10 browsers on a single machine.
If your requirement is to conduct the load testing using 100 real browsers - you will have to go for Distributed Testing
If you want to use existing Selenium tests as a basis for a protocol-based load test you should record them using JMeter's HTTP(S) Test Script Recorder. You can set the proxy for your WebDriver tests as follows:
So we have an option to run webdriver smaplers without opening the browsers if you are using chrome browser for this. You add jp#gc - Chrome Driver Config config element and there are 3 tabs in that those are "proxy", "chrome" and "Experimental". So you click on "chrome" tab and check the check box of Use Chrome headless mode. See the screenshot below.
In reality if you want to run webdriver samplers for more than 100 browser then I would suggest you that u use distributed test. Because browsers are resource consuming if you run around 4 browsers then your system starts hanging. so you cannot run 100 browsers. So go with Distributed testing in jmeter.
The Selenium docs say:
If your browser and tests will all run on the same machine, and your
tests only use the WebDriver API, then you do not need to run the
Selenium-Server; WebDriver will run the browser directly.
So why does Nightwatch even use the server? Whenever I try to run my tests they first say Starting Selenium Server.
I imagine my tests would be faster without starting a server for each. Is there a way to turn it off? Currently Selenium isn't even working for me: Why does Nightwatch / Selenium give me a 'Connection reset' error?
Nightwatch will send a http request to the webdriver server to run your tests on a web browser. You can go over the way Nightwatch.js works in detail here:
http://nightwatchjs.org/getingstarted
Nightwatch is just a task runner. You still need a server along with the task runner to actually execute your tasks. That's where Webdriver comes in. Selenium is one of the most popular Webdriver out there and is stable when paired with Nightwatch tasks. Whether to use a standalone server or not is optional and up to you.
I would like to record the network requests of a Selenium test. Rather than using jmeter GUI, I would like to automate this process in a script. The idea would be to run a selenium test and record it simultaneously. Is there a built in way to do this?
GUI Jmeter is ideally for development of scripts, which are then run headless to get true performance figures.
You can develop selenium webdriver tests as junit tests, which integrate to JMeter very easily.
Running a recorded Selenium IDE test would not be so straightforward, better to export it as Java Webdriver.
Make sure you follow junit naming conventions and annotations (depending which version you use). Write the test class, including junit 'test' methods, then create a jmeter test plan with a junit sampler, and configure the junit sampler to run your test method[s].
maven and plugins can be used to make it all run seamlessly in headless mode on any host.
Once you have developed one of these, it will be easy to review the jmx test script and automate the process of creating more jmeter tests, if that is what you meant by automating the process.
Start JMeter's Proxy Server
Configure your Selenium script to use JMeter as a proxy. See Using a Proxy guide for configuration details for each driver
Run Selenium test - all requests should be recorded by JMeter.
Add the next test elements to JMeter test plan:
HTTP Cookie Manager - to represent browser cookies
HTTP Cache Manager - to represent browser cache
follow recommendations from How to make JMeter behave more like a real browser to properly configure embedded resources retrieval, user agent, request defaults, etc.
Configure Thread Group parameters according to your load scenario.
Replay the test.
I expect that you will need to apply some correlation, but it may be not required.
I am presently working on a project for which selenium scripts are prepared and i want my jmeter proxy should record the steps executed by selenium browser. I tried running selenium and jmeter proxy server on same port but while doing that proxy server of jmeter refuse to start on same port. I read somewhere that this is possible but i am not getting the steps needs to follow.
You should do the same what you will do for simple test recording through Jmeter proxy:
setup Jmeter HTTP Proxy Server;
start configured Jmeter Proxy;
configure and enable proxy settings in your test browser (used by selenium) to use Jmeter Proxy.
Then run your selenium tests as usual, via configured test browser - HTTP Proxy Server will record execution.
To exclude all the steps performed in the "selenium-server" window try to add the following to 'URL Patterns to Exclude' in HTTP Proxy Server settings:
^/selenium-server/.*
Useful point here is to separate recorded execution into different Thread Groups - e.g. separate Thread Group in Jmeter for each recorded selenium testcase.
Step-by-step guideline you may found here.
To tell the truth such the "re-recording" may appear not very useful and effective: JMeter is not a browser, and does not interpret the JavaScript in downloaded pages.
As per Jmeter wiki:
JMeter does not process Javascript or applets embedded in HTML pages.
JMeter can download the relevant resources (some embedded resources
are downloaded automatically if the correct options are set), but it
does not process the HTML and execute any Javascript functions.
If the page uses Javascript to build up a URL or submit a form, you
can use the Proxy Recording facility to create the necessary sampler.
If this is not possible, then manual inspection of the code may be
needed to determine what the Javascript is doing.
So if you need Jmeter possibilities to implement load/performance-testing based on existent Selenium functional scripts better for you then use run Selenium scripts from Jmeter.