Set chrome window size on gitlab-runner - selenium

So I have this robotframework-seleniumlibrary test running on gitlab ci. But for some reason I cannot get the resolution higher than 1036x660.
When I run the tests locally it works as expected.
I've tried multiple solutions, and they all work locally but not on GitLab.
For example Set window size 1600 1200 will set the browser window size to just that. But on GitLab it will be 1036x660.
Any ideas what I might do to solve this?

Initial solution:
The issue resolved itself by running the gitlab-runner service with "Allow service to interact with desktop" privilege.
Better solution:
Run acceptance tests using headless Chrome.

Related

Cucumber selenium failing in jenkins pipeline only

I am working on an integration test, using Selenium/Java/Cucumber. When I run the test on localhost, or remotely on a VM, it passes fine. But when it runs as part of a Jenkins pipeline it hangs with the error "Timed out receiving message from renderer". I have googled this and there are several possible causes, including version conflicts. But I can't seem to figure out how to check these versions in the jenkins pipeline. Any pointers on what to look into would be helpful. I believe the tests are running headless on the pipeline, because there is no Chromedriver pluigin installed in our Jenkins. The test is pretty straightforward - it involves clicking on an element within an iframe (this is where it hangs) and checking for some output. I have even tested it running manually on the VM created by the very same pipeline and it always works without an issue.

Slowness when running headless Selenium from Jenkins

I've spent about a day looking for solutions around the web to my issue but none work for me.
Here is my scenario:
I am running Selenium scripts with ChromeDriver using pyATS framework on my Ubuntu 18.04 VM. The VM has 4 GB of memory. I also have setup Jenkins on the machine and am trying to run the pyATS script with the pyATS plugin.
When running headless mode from the terminal, the script runs in the same or faster time than non-headless mode. However, when I run in Jenkins on the same machine, I am getting extreme slowdowns. It looks almost as if Jenkins is running my script in sections, with >2 minutes of delay in between steps at random.
I've tried out Xvfb, headless with various chrome options (noproxy, proxy options, gpu disable, etc), increasing heap memory for jenkins, but I always get the same random 2 min of delay in between script steps.
The script doesn't fail - it will complete eventually. But for a step that I expect to take around 2 min, jenkins will take 10 minutes.
I currently don't have a way to increase the memory my VM has, but are there any other solutions that I can try in the meantime?
Found the issue, I had to set the "--proxy-server" for Chrome to the proxy my VM was running behind. For some reason Firefox was working fine without that option so I didn't think to set this option for Chrome.

"element click intercepted" only on TFS

I have about 130 Selenium UI tests for a web app we're currently developing.
The problem I have is, whenever I run the tests locally through Visual Studio's test explorer (vstest), I have never encountered this error before.
The problem is, some of the tests keep failing due to this message when the tests are run on TFS (using vstest on TFS too). element click intercepted
I'm also 100% sure there is no overlaying element that interferes with the click method as the tests never fail with that message when run locally.
Any idea what could this be?
I had issues where all of my local tests would pass, but I would receive random errors as you mentioned when running the tests through Jenkins or TFS, usually errors indicating that my elements were not clickable, etc. - the issue ended up being the browser size.
I started running my test in headless mode and specified a large browser size. Switching to --headless and setting a browser size ended up solving most of my issues for me:
var headlessOptions = new ChromeOptions();
headlessOptions.AddArgument("--headless");
headlessOptions.AddArguments("--disable-gpu");
headlessOptions.AddArguments("--window-size=1920,1200");
You will have to use --headless for this to work too. I tried to run my tests by ONLY setting window size, but the tests would still fail anyway because the resolution of the virtual machines was not large enough to handle the browser size I had set.
You can resolve this issue by using 2 methods.
1.Running chrome in headless mode
2.Scorlling to the element before clicking or interacting with it
The root cause of this issue is due to the fact that the browser does not load with a browser size as that of browser when tested locally
If you intend to run the test in non headless mode you can use the following code to achieve the result.
IWebElement element= driver.FindElement(By.Id(selector));
((IJavaScriptExecutor)driver).ExecuteScript("arguments[0].scrollIntoView(true);", element);

Jenkins setup for running Selenium test on Ubuntu

I already tried a lot for Jenkins setup on Ubuntu for running selenium test cases. But each time i face problem Like Display error , chrome connection timeout. I tried all the solution on internet (debugging this from last one week). Someone please help in setting up by step by step process (including version compatibility).
Also, test-cases on Ubuntu Jenkins run only on display mode?

Selenium with Xvfb and Jenkins throws TimeoutException

I'm trying to setup automatic Selenium tests with Jenkins on a Linux server.
The problem is that all tests fail with:
org.openqa.selenium.TimeoutException: Timed out after 60 seconds waiting for visibility of element located by By.linkText
Each test fails with the fist element expected.
Jenkins has the Xvfb plugin installed, and from the console messages it seems to work:
Xvfb starting$ /usr/bin/Xvfb :1 -screen 0 1024x768x24
I tried to increase the timeout, but it seems its not that the problem.
The tests run fine on windows and on a linux system with display.
The problem is I don't have direct access to the server, so I'm trying to explore all possibilities before I make requests to the sys admins.
To run the tests are used two projects, both seem to deploy fine, but when the tests start its like one project (the backend) is not deployed and some URLs are not found, from here the timeout exception. I'm not very sure how Jenkins behaves in this case, and if it starts one project at a time.
Any ideas? Thanks a lot!
To check if the application under test is running when tests try to access it, you can connect to the test machine via ssh, and take screenshot at the moment when the test runs:
xwd -root | convert xwd:- capture.png
http://inspirated.com/2007/04/02/howto-use-xwd-for-screenshots