I am using selenium with dockers in a Debian VM without GUI and I am having problems to get the web elements. If I launch the selenium server as a jar in my machine works like a charm.
This is the error that I am getting:
java.lang.ClassCastException:
com.google.common.collect.Maps$TransformedEntriesMap cannot be cast to
org.openqa.selenium.WebElement
Any ideas? Is it necessary to have a VM with GUI?
Related
When i am trying to do UI automation testing in AWS Code build getting this error
Error: ECONNRESET socket hang up
at ClientRequest. (node_modules/selenium-webdriver/http/index.js:294:15)
I am using standalone selenium docker for firefox inside AWS Code build with linux environment.
Same script is working in local machines
Please verify selenium running on port 4444
I'm hoping this is a simple issue to solve:
I have a dedicated machine that runs selenium with chromedriver. I can physically walk to the machine and type the following in a local terminal:
java -Dwebdriver.chrome.driver=chromedriver238 -jar selenium-server-3.11.jar
I can then go to any other machine on the network and kick off testing (in my case, codeception on jenkins) and it will sucessfully run my tests in chrome without a hitch.
However, if I try to run the above command without physically being at the selenium machine (ex, trying to ssh into the machine to run the command or making this command run as part of a supervisor process) then selenium has trouble starting the instance of chrome.
Has anyone run into this scenario before? Is there a way I can give 'interactive' access to the background script to allow it to open stuff on my screen?
Because when you physically walk to the machine and run the command. the selenium can get the desktop/window interface.
When use SSH, selenium lost the desktop/window interface, selenium have to start chrome under headless model, but your code not config to run as headless model. So the conflict come out.
you need to config your code to run with headless model.
I'm to getting the same scenario, when i try to start the selenium code on the machine A it works yet when i try to start selenium and run the scripts from machine B
(remotely connecting to machine A using ssh [ssh test#machine-a]) chrome instance doesn't start/launch and driver is getting null.
logs :
2020-02-27 12:04:27,319 INFO [LogWritter] Exception in beforeclass chrome driver instantiation , driver is null
2020-02-27 12:04:27,493 INFO [LogWritter] Exception in getting screenshot---java.awt.AWTException: headless environment
Any help/suggestion would be great !
I am trying to launch browser for automation testing(selenium) using jenkins on ubuntu OS. Test are running properly but browser is not launching seems like it is running headlessly.
I am able to fix this using this solution -
Added Xvfb plugin and added DISPLAY variable.
Running jenkins.war
from console using java -jar jenkins.war
As I know in Windows OS by checking "Allow service to interact with desktop" while jenkins installation we can fix this. So Is there any way we can do this on ubuntu by updating some configuration so we don't have run jenkins.war from console everytime.
There are two ways to facilitate the launch of browser on ubuntu OS.
1.First way - Configure your Jenkins nodes and add the ubuntu machine. Add the sshing details(username-password OR RSA key) of the target machine. This configuration is recommended if you are in cloud.
2.Second way(not recommended on cloud environments) -You have to run a Selenium standalone-Server (a standalone node), and register your remote WebDriver to it.
WebDriver driver = new RemoteWebDriver(new URL("http://ipOfUbuntuMachine:port/wd/hub"), capability);
I have a strange problem, which I'm unable to solve for sometime. I have a selenium WDS for Firefox browser. I tried to execute the code in JMeter UI, everything works fine. But when I try to execute the same in a server (using XVFB driver), I get the error:
rm="sun.org.mozilla.javascript.EvaluatorException: Can't find method org.openqa.selenium.remote.RemoteWebDriver.executeScript(string,org.openqa.selenium.remote.RemoteWebElement). (<Unknown source>#17) in <Unknown source> at line number 17"
All the required drivers are the same as the one I locally try. Yet, I get the error only when I run in the server but not locally. Please help
Most probably you have different versions of either WebDriver Sampler or dependency libraries, I don't see any other ways for the same script to work on one machine and don't work on another.
Install the same version of JMeter onto both machines (use JMeter 3.2 or later, whatever is available at JMeter Downloads Page)
Install latest version of the WebDriver Sampler plugin using JMeter Plugins Manager
Your test should now be running fine.
I have test classes written in java for UI testing using Maven using Selenium Web-Driver. I want to run them using mvn test command in Jenkins.
It is not able to launch the browser for the testing.
The error stack shown is something like this:
org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
Error: no display specified
Error: no display specified
at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:106)
Any help on this will be appreciated.
Firefox needs a X display to run, e.g. Xvfb
You will need to
install xvfb on your server. Doing this depends on your server operating system (and package management)
start xvfb before the build. You can do this using the xfvb plugin, or by running Xvfb as a daemon. I personally like to use the plugin.