Since browser auto-update runs on the system unless we manually turn it off,
how to automate in selenium to identify if there is a browser upgraded?
If the browser updates e.g. Chrome, you will need to have the compatible binary for that browser. There's a good answer and overview on this here.
To avoid this, I personally used ephemeral instances of Chrome, specifically SauceLabs and containerized tests using docker-selenium.
Related
I can handle it with FF web driver (selenium python) but when I change phantomjs the driver .it didnt handle it. is it possible to handle it?
the program must work on server so what must I do?
In short, no, this is not currently possible. The PhantomJS ghostdriver does not implement the primitives for handling alerts/prompts. See https://github.com/detro/ghostdriver/issues/20
This is also unlikely to change since development of PhantomJS has been discontinued.
the program must work on server so what must I do?
Your best option is to use the headless versions of Chrome or Firefox, which can run in a headless environment like PhantomJS just fine. Both Chrome (chromedriver) and Firefox (geckodriver) implement the necessary primitives for handling alerts/prompts.
Another option is that you can use a virtual screen program (e.g. xvfb) to enable you to use a headed browser in a headless environment.
I'd like to crawl a set of random websites received from a URL generator, using Selenium's ChromeDriver with Crawljax to do static code analysis on the captured DOM states.
Is this potentially unsafe for the machine doing the crawling?
My concern is that one of the randomly generated sites is malicious and that execution of JavaScript from ChromeDriver (which is used to capture the new DOM states) infects the machine running the test somehow. Should I be running this in some kind of sandboxed environment?
--edit--
If it matters, the crawler is implemented entirely in Java.
Simple answer, no. Only if your afraid of cookies, and even if you are, your machine isn't.
It's hard to say it's very secure,you should aware of that there is no absolute secure in network.Recently,a chrome RCE has been put out,details:
SSD Advisory – Chrome Turbofan Remote Code Execution – SecuriTeam Blogs
Maybe this can effect on Selenium's ChromeDriver
But you can do some enforce on your system,such as change your firewall mode to white list,only allow your python script and selenium to access internet on port 80,443.
Even if your system pwned by RCE,the malicious code still can't access internet,unless it inject to you python process(I think it's very hard to do with js script in Browser RCE).
Another option:Install HIPS,if your python script want to do anything else but crawl web page(such as start an other process) or read/write some other files,you will know it and decide what to do.
In my oppion,do your crawl thing in a VM and do some enforce on firewall(Windows firewall or Linux iptables),shutdown useless services in windows.That's enough.
In a word,it's diffcult to find the balance between security and convenience and do not believe your system is unbreakable
Can anyone explain what is running selenium tests in headless mode in jenkins?
As per comment it's a way of running tests in a browser that doesn't have a GUI attached to it
What is a headless browser? (Quoted from ToolsQA)
Headless browser is a term used to define browser simulation programs
which do not have a GUI. These programs behave just like a browser but
don’t show any GUI. Famous ones are HtmlUnit and the NodeJs headless
browsers. There are a good number of more browsers too.
What is the use of Headless browsers?
Headless browsers are typically used in following situations
You have a central build tool which does not have any browser installed on it. So to do the basic level of sanity tests after every
build you may use the headless browser to run your tests.
You want to write a crawler program that goes through different pages and collects data, headless browser will be your choice. Because
you really don’t care about opening a browser. All you need is to
access the webpages.
You would like to simulate multiple browser versions on the same machine. In that case you would want to use a headless browser,
because most of them support simulation of different versions of
browsers. We will come to this point soon.
Things to pay attention to before using headless browser
Headless browsers are simulation programs, they are not your real
browsers. Most of these headless browsers have evolved enough to
simulate, to a pretty close approximation, like a real browser. Still
you would not want to run all your tests in a headless browser.
JavaScript is one area where you would want to be really careful
before using a Headless browser. JavaScript are implemented
differently by different browsers. Although JavaScript is a standard
but each browser has its own little differences in the way that they
have implemented JavaScript. This is also true in case of headless
browsers also. For example HtmlUnit headless browser uses the Rihno
JavaScript engine which not being used by any other browser.
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.
So I came across zombie.js, is this a headless browser?
If so, what browser engine does it use?
Could I rely on it for doing lot of automated tests? Basically, I am restricted to a single server, so I would like to squeeze as many browser tests as possible.
Currently, I am relying on Selenium FirefoxDriver to run my tests. How would zombie.js compare in performance and efficiency to Selenium Webdriver browser instances running? However, there's limitation to how many browser instances I can run in parallel.
Yes, Zombie is headless.
"Whick browser engine?" - > well, it uses a mixture of technologies:
for Javascript: V8 from Chrome (run by node.js)
for DOM: JSDOM
for HTML5 parsing: https://github.com/aredridel/html5
Performance: should be much faster, according to author's statement: http://labnotes.org/2010/12/30/zombie-js-insanely-fast-full-stack-headless-testing/
is this a headless browser?
I haven't used it, but it certainly looks like a headless browser:
If you're going to write an insanely fast, headless browser, how can you not call it Zombie? Zombie it is.
Zombie.js is a lightweight framework for testing client-side JavaScript code in a simulated environment. No browser required.
what browser engine does it use?
From http://zombie.labnotes.org/guts.html#Grocking:
The DOM implementation is JSDOM, which provides an emulation of DOM Level 3.