How to set default browser window size in Protractor/WebdriverJS
For some reason when I run my tests at work the browser is maximized, but when I run them at home it only opens a browser window of about 50% width. This causes some discrepancies with scrolling down, etc., so I'd ideally like to have it open a browser window of the same size on every machine the tests are run on. What's the best way to do this?
(I've found some answers for other languages, but I haven't been able to adapt them to JavaScript)
Adding
browser.executeScript('window.moveTo(0,0);' +
'window.resizeTo(screen.width, screen.height);');
does nothing (apparently window.moveTo and window.resizeTo are not supported by Google Chrome).
Answer
You can set the default browser size by running:
var width = 800;
var height = 600;
browser.driver.manage().window().setSize(width, height);
To maximize the browser window, run:
browser.driver.manage().window().maximize();
To set the position, run:
var x = 150;
var y = 100;
browser.driver.manage().window().setPosition(x, y);
If you get an error:
WebDriverError: unknown error: operation is unsupported with remote debugging
Operation not supported when using remote debugging Some WebDriver commands (e.g. resizing the browser window) require a Chrome extension to be loaded into the browser. ChromeDriver normally loads this "automation extension" every time it launches a new Chrome session.
However ChromeDriver can be instructed to connect to an existing Chrome session instead of launching a new one. This is done using 'debuggerAddress' in the Capabilities (aka ChromeOptions) object. Since the automation extension is only loaded at startup, there are some commands that ChromeDriver does not support when working with existing sessions through remote debugging.
If you see the error "operation not supported when using remote debugging", try rewriting the test so that it launches a new Chrome session. This can be done by removing 'debuggerAddress' from the Capabilities object.