They use the browser as a testing runtime, but there’s no need to display the browser window while the tests run.įor years, the best way to load webpages without displaying UI was PhantomJS, which is based on WebKit. More recently, tools like Lighthouse have packaged complex automated tests into a simple attractive package. This has required tools like virtual display software in order to run properly, adding complexity. In some environments, there may be no graphical display available, or it may be desirable to not have the browser appear at all when being controlled. This poses a few problems for automation. To this end, browsers have long supported some level of automated control, usually via third-party driver software.īrowsers are at their core a user interface to the web, and a graphical user interface in particular. Automation setups range from scripts run on local machines to vast deployments of specialized servers running in the cloud. You can jump ahead to learn how to use it.īrowser automation is not a new idea, but is an increasingly important part of how modern websites are built, tested, and deployed. Your separate backgrounds will be saved if you restart.If you know the ropes, good news! Firefox now has support for headless mode, making it easier to use as a backend to automated tools. Whatever you choose will appear on that second desktop only. Go to the Desktop & Screen Saver pane and choose another desktop picture.Then enter Mission Control, drag the System Preferences window from its current workspace to another desktop (or create a second by dragging it to the top right until a ghosted desktop appears in the upper right corner of Mission Control.).Launch System Preferences in your first desktop, go to the Desktop & Screen Saver pane on your first desktop, and set the background image you’d like. What you can do is choose a unique desktop picture (wallpaper) for each Desktop, here’s how: Unfortunately it isn’t possible to name the different Desktops/Spaces to make it easy to find the one you are looking for, and if you have a lot of documents open on each of your desktops you will struggle to identify one from another. How to distinguish one Desktop from one other Press the Mission Control key (F3) to see your different Spaces and Desktops and just click on the Space that houses your Full Screen app.If you happen to be using two screens at the same time, it can be handy to have one app in full screen mode on one screen, and the other apps in normal mode on the other screen. You don’t have to assign exactly 50% of the screen to each app, you can move the divider between the two apps in the Split View.Now choose the other app you wish to view in Full Screen mode from the Mission Control layout visible on the right.When you do so the app will open on the left side of the screen, while the right side of your screen will show a Mission Control view of all your open apps.Click and hold the green ‘traffic light’ button.Here’s how to activate Split Screen view: This could be ideal if you are often working in more than one app or document at a time. With Split Screen mode triggered, you can have more than one app running in full screen on one desktop. When El Capitan arrived in 2015 a new Split Screen view joined the Full Screen view. Hover your mouse pointer at the top of the screen so that you can see the traffic light buttons and click on the green one.
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