I want to take a screenshot of a webpage using Selenium.
I have notice that the action to take the screenshot require to open the web browser itself.
tried to change webDriver.Navigate().GoToUrl("http://www.google.com"); with webDriver.Url = "http://www.google.com"; but no success,
I even tried to leave it with no url and the browser opened with url of 'data', which now I understand that something else makes the browser to be open.
private void button1_Click(object sender, EventArgs e)
{
var capabilitiesInternet = new
OpenQA.Selenium.Remote.DesiredCapabilities();
capabilitiesInternet.
SetCapability("ignoreProtectedModeSettings", true);
IWebDriver webDriver = new ChromeDriver();
webDriver.Navigate().GoToUrl("http://www.google.com");
Screenshot screenshot = ((ITakesScreenshot)webDriver).GetScreenshot();
screenshot.SaveAsFile("E:\\ScreenShot.png",
System.Drawing.Imaging.ImageFormat.Png);
webDriver.Quit();
}
No - you need to let the WebDriver request the page, otherwise how can it know what screenshot to produce?
If you're trying to avoid a real, 'slow' browser starting up and opening a window, you should either consider running that browser headlessly, as per:
How do I run Selenium in Xvfb?
Or check out the headless WebKit browser PhantomJS (or maybe SlimerJS), and using almost exactly the same WebDriver API as you have now, ask it to produce your screenshots 'in-memory':
Phantomjs - take screenshot of a web page
Just replace:
WebDriver webDriver = new ChromeDriver();
with:
WebDriver webDriver = new PhantomJSDriver();
(Obviously requires the application to be installed locally)
Edit: Just a note that the typical use-case for this is 'overnight' continuous-integration / continuous-testing when run from headless CI servers. However, it can be very easily added to other work-flows, e.g. for visual regression-testing, and simple one-off checks.
There's multiple ways to go about it:
There is chrome flag --no-startup-window which should open chrome without window. I tried it, and it didn't work, however, you can give it a go.
Use hacks - there is a way to start chrome without you ever seeing it, it works nicely. Just use --window-position=-9999,0, note that, TakeScreenShot() has some weird anomalies in my experience - it focuses the window, it runs out of memory randomly, etc. What I ended up doing is I wrote chrome extension which can take screenshots and return them back to selenium through JS.
Related
im looking example how can i start my normal google chrome in webdriver c#?
For now i use :
ChromeDriver driver;
public ChromeDriverService chromeDriverService;
chromeDriverService = ChromeDriverService.CreateDefaultService();
chromeDriverService.HideCommandPromptWindow = true;
var chromeOptions = new ChromeOptions();
chromeOptions.AddArguments("disable-infobars");
chromeOptions.AddExcludedArgument("enable-automation");
chromeOptions.AddAdditionalCapability("useAutomationExtension", false);
driver = new ChromeDriver(chromeDriverService,chromeOptions);
But it run my chromedriver.exe installed inside project. Can i just run my simple installed chrome? Without download any chromedriver.exe? It's important for me , because some website check if there is opened chromium with chromedriver.exe.
Is it possible to do that?
If you want not just open it but also perform some interaction with your site then you have to deal with Selenium and WebDriver.
You can try Python and undetected-chromedriver which has some workarounds preventing some systems to detect that your browser is running under webdriver control.
Unfortunately, it's the chromedriver.exe that lets you interact with Chrome so, without the driver, you wouldn't be able to interact with the actual browser.
If your issue is with chromium, try driving Mozilla with GeckoDriver
Selenium always uses chromedriver.exe for interacting with Chrome, I think you mean you want to load your default data directory. You can add a chrome option for this purpose:
chromeOptions.AddArguments(#"C:\Users\<your user name>\AppData\Local\Google\Chrome\User Data")
Take care, any other chrome must not be running that time with the same data directory. Like you may have run for your personal use.
You can also create a data directory somewhere else if you just want to show some realistic behavior to a website. But some websites are smart enough so it does not work every time.
I have tried
options.add_argument("--headless")
driver = new ChromeDriver(options)
it's working fine but my requirement is to hide it after initialization.
As you can see here: How to execute tests with selenium webdriver while browser is minimized there is no way for the browser to be minified.
You could in theory move the browser out of view as described here https://sqa.stackexchange.com/questions/15484/how-to-minimize-the-browser-window-which-was-launched-via-selenium-webdriver
driver.manage().window().setPosition(new Point(-2000, 0))
Chrome headless is an instance of chrome. You can't start from normal mode and switch to headless mid test. Once you start testing with any kind of browser mode, you need to stick to it. There are some work arounds I've not tried with opening windows with code and continuing from the new window.
Use phantomJSDriver for Headless automation
WebDriver driver = new PhantomJSDriver();
I'm using selenium with c# and I would like to hide the internet explorer browser window. As far as I understood IE does not support headless browser.
For the particular case I'm working on, IE is the fastest browser, since I'm accessing internal company webpage.
Can you help me out?
I had the same problem and I'm happy to help you out.
I am still looking for a solution to start IE headless but with the minimized version I could also help myself.
here an idea:
IWebDriver webDriver;
public void StackTest()
{
webDriver = new InternetExplorerDriver();
webDriver.Manage().Window.Minimize();
}
as a little tip I recommend to keep IE waiting until everything is loaded:
webDriver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(60);
My final goal is to be able to take automated screenshots. For this I've been reading this article which says that it should be as simple as this in the command line:
chrome --headless --disable-gpu --screenshot https://www.chromestatus.com/
But I don't get any screenshot.png files anywhere in the current directory, in my case C:\temp. I've also tried omitting the 'headless' parameter but the only thing that happens is that Chrome opens the website but no file is created.
The plan is to use chrome and selenium together as such:
public void ScreenshotPage(string url)
{
ChromeOptions o = new ChromeOptions();
o.AddArgument("window-size=1920,1200");
o.AddArgument("disable-gpu");
o.AddArgument("disable-extensions");
o.AddArgument("headless");
o.AddArgument(url);
using (var driver = new ChromeDriver(o))
{
//driver.Navigate().GoToUrl(url); // if o.AddArgument(url) doesn't work then try this instead.
//Thread.Sleep(10000);
Screenshot screenshot = driver.GetScreenshot();
screenshot.SaveAsFile(#"C:\temp\test.png", ScreenshotImageFormat.Png);
}
}
The result is a blank png-file which seems to have the right resolution.
One reason that I'm looking into headless Chrome is that my program is going to be run in a virtual machine and without a user logged in. This creates a problem for ChromeDriver's GetScreenshot() since it will use a very low resolution for taking the screenshot. I was hoping that a headless Chrome would solve this issue.
There doesn't seem to be any relevant information on the Internet, save Using headless Chrome as an automated screenshot tool (alternative to PhantomJS) where the author has explicitly stated that he is targeting Chrome v60. I'm a bit hesitant using puppeteer since I'm writing in .NET and not so sure if current ports are
Environment: Google Chrome 63.0.3239.132 64-bit, Windows 10 (and Server 2012), Chromedriver 2.34
Give this one a try
using (var driver = new ChromeDriver(o))
{
Screenshot ss = ((ITakesScreenshot)driver).GetScreenshot();
ss.SaveAsFile(#"C:\temp\test.png", ScreenshotImageFormat.Png);
}
I am using selenium WD in C# for cross browser testing but facing a strange problem that when ever i run my test using Nunit firstly Firefox window will open & then my desired browser window will open & run the test on it(desired browser).
As per my knowledge if any system is not having Firefox installed in it then it fails the script.
So is there any way to change this default value of browser in selenium.
I am able to run tests on different browser, my problem is only that before opening my desired browser by default first system is opening firefox. which create issue for me & my tests.
public void SetupTest()
{
driver = new SafariDriver();
baseURL = "http://google.com/";
verificationErrors = new StringBuilder();
}
Most probably, somewhere in your code you are initializing the Firefox Driver. Search for this within you code:
new FirefoxDriver();
You could also debug to the line
driver = new SafariDriver();
and see if it has an assigned value already.
But I am also pretty certain that you are initializing a FirefoxDriver somewhere.