When I run Selenium tests on Chrome in parallel with two threads(both threads running on same machine), sometimes I've seen one of the chrome instances stuck(i.e UI interactions do not happen) for some time or indefinitely.
This causes test execution to take more time or fail test unnecessarily.
Could you please help to understand if this is known behaviour when tests run on same machine? If not, what are the causes and solutions? Also guide on how we can pro-grammatically(using Java) set memory for Chrome browser which is running through Selenium?
Related
When I execute tests using MicrosoftWebDriver for Edge all works fine, but when I minimise the window all tests become failed. Does Edge or MicrosoftWebDriver have any options to avoid that behavior?
As you have been trying to minimise the Browser Window while your Test Execution is In Progress it will be against all the Best Practices. At this point it is worth to mention that as Selenium mocks the User Actions hence Selenium needs Browser focus. If the focus is lost Selenium won't be able to execute the lines of code. Consider the following steps while your Test Execution :
Browser Maximize : While you execute your tests always keep the Web Browser maximized so majority of the elements are within the Viewport
As per best practices, you should try to execute your Test Scripts / Automation Framework in an isolated Test Environment away from Manual Intervention with all the required Software and Hardware configurations and setup.
You can find a detailed discussion in How to run chrome driver in background using selenium with Ruby for Mac OSx?
You also have an option to use Google Chrome or Mozilla Firefox in Headless version.
For Firefox you can find a detailed discussion in How to make firefox headless programatically in Selenium with python?
For Chrome you can find a detailed discussion in selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH error with Headless Chrome
For Ghost Browser you can find a detailed discussion in Which drivers support “no-browser”/“headless” testing?
I put together a machine (Windows Server 2012R2) for POC reasons where a Jenkins installed and it executes Selenium UI tests using msunit
But, when I log in the server where the Jenkins runs and I watch what happens during CI build (compile and test execution) I can't see that the browser (Firefox) starts automatically, however, the test results and the logs show that a browser was executed.
My question is that, what the is happening when my tests are executed by Jenkins? If I execute the command which from visual studio on the same machine then I can see that Firefox starts, does what is programmed in the tests and the results are in the result.trx.Can I somehow set up Jenkins the way the browser really executed (I can believe it when I see it :)
In Jenkins when you run selenium test cases, they are executed in the background by default.
Your Jenkins might be configured to run those test cases in some video buffer(usually it happens on Linux but can also be configured on Windows) or in a headless state.
As your question, if you are using MSTest which basically used to convert the test cases result from trx to JMX format but also can be used to run selenium tests. when you run the same in Jenkins it will run in background on any slave or on master.
I have a angular web application that I want to make protractor tests for the page, And I must run the tests with Internet explorer browser.
However, the tests are not stable, sometimes they all work, sometimes few tests fail randomly.
I am having this issue from 1 month now and I still cannot find solution, here what I tried so far:
Running IEwebdriver explicitly in 32bit or 64bit.
Deleting cache and session after every test.
Increased timeouts in conf.js to 200000.
Adding protractor expected conditions(http://www.protractortest.org/#/api?view=ProtractorExpectedConditions)
Making sure using .then after every function that returns promise.
The reasons of tests failing is slowness of internet explorer, and that it waits for element to be clickable(using protractor expectedconditions) but the element is never clickable, and when I look at the webdriver-manager I see that it trying to do the same lines over and over again.
I am sure that my tests are correct and working fine and I am sure that the browser is the problem.
Can you help? Thanks
I am having a really hard time figuring out as to why the selenium test cases are running slowly with phantomjs ghostdriver. When the developers run the test cases against the dev environment it runs faster(takes 1 hour to complete 5 test cases), but when ran from jenkins, it takes 4 hours.
I turned off the IPV6 on the dev machine, also tried switching to version 1.9.1, but still no improvement on the time taken.
Jenkins Machine
phantomJS: 1.9.2
Jenkins Server: RHEL 5.6 64 bit
JDK: 1.7
Developer Machine
OS: Windows 7 64 bit
JDK: 1.7
phantomJS: 1.9.2
Can someone please help?
Thanks in advance
Are you using driver.quit() or phantom.exit() after each test case as phantomJS process not get killed automatically. If no then it could be the reason of slowing down your test cases.
If your tests do not quit the drivers, your jenkins box will have a lot of open browsers in memory after a while.
For instance, every test that starts, then asserts false somewhere and dies, leaves an unclosed driver. These tend to build up after a while.
Depending on your testing framework.. there may be good solutions around it other than wrapping each test in their own try/catch blocks.
py.test has great fixture functionality. You can have a phantomjsdriver() fixture that opend the browser for each test, then after the test is done (safely, or aborting from a False assertion) it can finalize and close up the driver.
psudocode example: (py.test, python, selenium)
#pytest.fixture
def phantomdriver(request):
driver = webdriver.phantomJS()
def fin():
driver.close()
request.addfinalizer(fin)
In this situation, every test that uses this fixture, no mater how it exits, will end up calling the finilizer fin() to close it.
I am using Selenium (WebDriver) and C# and have a question regarding running tests.
I have developed a number of tests and they are all working as I expect. I am able to execute them in FireFox, IE and Chrome but I have to manually alter the definition of my driver initialization between runs.
What I want is to run all tests in IE, then re-execute in Chrome then once more in FireFox and I have not figured out how I could do that.
Anyone done something similar?
Any thoughts are appreciated.
Thanks
Sean