I was asked a question :
Assume I have 4 machines and I need to execute a script in all the machines across all the browsers. How will I achieve that.
I told him the concept of Selenium Grid, where in we could set up a machine which acts like a hub, configure 3 more machines which would act like a node.
Using Desired Capabilities among others we could choose a browser type and version type in that and write a script.
But he asked me two things :
IN all the node machines how do you configure the Windows username and Password if the machine is locked. Can you write windows Authentication in the script.
Can I achieve testing different browser versions of same browser type in a single node?
Can I pass as a the browser type and browser version as a parameter
from hub to the node?
Can someone throw some light on these as I was unable to answer. Thanks.
Question 1: Is it really necessary for the machine to be unlocked for the test to start? The selenium node is a background process that listens for commands, and executes them on the browser, so I do not think this is necessary. If it is necessary due to your specific windows settings however, then no, you cannot do this from the selenium script obviously.
Question 2: Yes, you can test different browser versions of the same type on the same node. You can pass the browser name and version to the node. However, keep in mind that the node cannot know the location of the different browser versions, so you will also have to supply the path to the browser executable for your requested version
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I have developed a framework with selenium + .NET
I'm running all test using Bambo agent. Everything is working fine, except one thing.
As you know, chromedrive can not set window size bigger than actual machine screen resolution.
My bamboo machine has set 1920x1080 resolution. To make sure that it is for real 1920x1080, I wrote a powershell script that is executed on agent berofe tests and print out resolution. Btw I have bamboo agent with Windows
But when webdriver start browser (chrome, firefox or IE) it limits the browser window size to 1044x788. Looks like the webdriver is getting wrong resolution from bamboo agent.
As you know webdriver is not allowing to set bigger size of window than you actual machine has. Thats why we limit browser size to 1044x788
There is no way to change size of window for bigger one. Things like: Manage().Window.Maximize() or Manage().Window.Size = new Size (1920x1080) or starting chrome with webdriver adding some options for chrome like: chromeOptions.AddArgument("--window-size=1920,1080"); it is always limited to 1044x788.
Did any one have similiar problem? Can I somehow "hack" webdriver to open browser with 1920x1080? Meaby somebody knows how webdriver is checking the screen resolution? If he is looking for resolution in some windows file then meaby I could inject 1920x1080 resolution there?
Or meaby there is some setting in bamboo agent that I missed?
Why is that important? Becouse at same point I faced problem that on this smaller browser some webelements sometimes are overlaping (figure out that on screenshots) and it case some test to fail.
When I run test on my laptop it always have this 1920x1080 resolution.
P.S. I know about Selenium Grid but my aproach works great for me, until now :)
Before second I wrote another powershell script and create a screenshot on bamboo machine, and the screenshot has 1024x768 resolution. So meaby it is coused somehow by machine..
I know the answer. Bamboo runs all tasks as windows service (not as a user). That's why I was not able to see the browser and the screen resolution was wrong. There are two solutions:
Set up selenium grid hub and node on that one machine with your user, and paste url of hub in you framework. Then bamboo service will trigger selenium grid hub that is set by your 'user' and you will be able so see browser when you will log into the virtual machine and it wil have normal resolution (I have select this solution)
I think that there could be another solution to set up bamboo to run tasks not as windows service but as a user (not sure if it is possible).
We have are planning to design a system where we are planning to invoke the Selenium test that is present in a remote machine with url for testing. The selenium program should open 3 browsers for example IE, FF and Chrome and open the page and take a screenshot of it. Later These screenshots should be sent from this machine to the java application.
Is it possible to achieve this functionality ? If so could you please guide me on how to do this ?
Yes, you need to start a Selenium Grid/Node server on the remote machine that is configured to run all 3 browser types. That configuration isn't easy but it involves launching the grid from a .json config file. Then, your local program needs to just run the 3 tests either in 3 simultaneous threads, or one at a time using typical Selenium code.
Each test needs to define a Selenium Augmenter to get screenshots. There are lots of examples on Google.
I'm trying to test a scenario where two separate users are logged in. As the question states, is this possible with Selenium? I don't if it's browser dependent, but I'm using Chrome.
Selenium (web driver) allows to open several browser windows (e.g. 3 Firefox windows or 1 IE + 1 Firefox +1 Chrome).
In you code you have API to select the desired window (depending how on how you opened it).
Regarding the session handling: that depends on the browser type. Firefox will share the session across multiple windows because it's using a single process. AFAIK IE and Chrome if opened as new processes will not share it, but this of course depends also on how the server is setting the cookie policy for the session.
Access to cookie values in the browser however is domain dependent, so a persistent cookies or local storage can share information even across sessions, so it really depends on how the web application is implemented (or what framework is using - that mostly takes care of such stuff).
If you want complete separation, then take a look at Selenium Grid;https://code.google.com/p/selenium/wiki/Grid2
This would allow you to have the browsers open on different computers while running the test on one machine
I'm trying to run a different browser mode on IE with selenium using c#. Here's some code:
var ieWebDriver = new InternetExplorerDriver(#"PATHTOWEBDRIVER");
ieWebDriver.Keyboard.SendKeys(Keys.F12);
ieWebDriver.Keyboard.SendKeys(Keys.LeftAlt);
ieWebDriver.Keyboard.SendKeys("b");
ieWebDriver.Keyboard.SendKeys(Keys.NumberPad7);
I can open the developer tools (f12) but I'm not able to change the browser mode. Is IE preventing this due security? if so, are there any other ways to render content with a lower IE version?
thanks
No. The IEDriver is going to launch whatever IE is installed on the machine.
Changing the 'browser mode' is not a true representation of that version you are changing it to. IE9 on IE7 Standards Mode is not a true version of IE7.
Thus, you are stuck in a problem. You want to test different versions of IE, how do you do it?
The problem is that Windows let's you only have one IE version on a Windows PC at any one time. Yes, there are hacks and programs around to get multiple versions (IE5 and above) to run on a single machine, but they are hacks. Hacks which are not going to work all that well, and still, even with this, you wouldn't even be able to give the IEDriverServer the flexiblity to do this.
You will have to have seperate Windows machines.
A workaround, which again is a hack, is to set browser emulation mode in the registry, as documented in SO question.
Note that in the above question, the accepted answer is not going to work but the other answer may do. As note the comment on that answer, is by the maintainer of the IEDriver itself, advising strongly against this.
Another workaround, I have not tested, is perhaps use the native C# Keyboard.SendKeys, as documented here in MSDN. Am unsure if it will work (don't think anyone has ever ried it), but it is another option.
Selenium supports cross-browser testing of different versions of the same browser, but it is not achieved by switching the version in the Browser Mode in F12 Tools.
See https://code.google.com/p/selenium/wiki/Grid2
You can set up virtual machines with different versions of IE that work as Selenium nodes and use Selenium Hub to connect to them. Let's say you have a virtual machine with Windows 7 which has IE9 installed. You would start a Selenium node there and specify that it accepts requests for IE9 tests. You would then create InternetExplorerDriver for version 9, connect to the hub and run the test. The hub finds out the node with IE9 and runs the test there.
Related post here:
https://stackoverflow.com/a/8524216/1080590
This is of course different to what you're trying to do on a single machine, but it's more reliable and prevents you from extra management of your local IE instance.
On my linux box somewhere in the United States, it's running Selenium Grid 2.
Currently 3 people will be regularly running parallel tests, but there's potential for more people to join and running more parallel tests....
now they are in other parts of the world, they need to submit an xml file which contains the test data, and the server needs to parse this and figure out the rules.
How can the client invoke a test to run on the remote server? via HTTP POSTing the xml file to the url in which the grid is running on?
Is it cheaper to just rent out a fast linux server and then buy more as number of parallel tests increase?
Or should I right off the bat, hook it up to Amazon ec2? If there are parallel tests on an ajax heavy web applications running 24/7, would it be cheaper to go with the single dedicated box or amazon? google app engine (no plugins for grid?)?
I am not sure I understood the xml submitting part in your question. However, I can tell you an example which will help to you understand how to submit the tests to grid.
Three people, PersonA, PersonB and PersonC are creating selenium tests in their local machine. They currently run the test using an ANT build (or something similar) against the selenium server jar which is in their local machine. In their code they would be having a line of code which tells which selenium instance should be used to run this test. This will be mostly like
new DefaultSelenium("localhost",port,browsername,URL)
Now these people want to move to selenium grid (1 or 2). Here is what they will have to do to use the grid
All they have to do is change the command
new DefaultSelenium("localhost",port,browsername,URL)
to
new DefaultSelenium("hubIPAddress",portInWhichHubWasStarted,browsername,URL)
Note:- browserName - Make sure there is a remote node registered in Hub for the same browserName.
Now all the commands will be sent to Selenium Hub and Hub would execute the commands using the remote nodes.
Hope this helps. Please post if you have any questions.