如何使用“executeScript”在Selenium中通过JavaScript发送“Enter Key”

Question

I'm working on automating a flow using IE 11 with Selenium and Java, on this web page I need to put a value in Text Box and then press Enter. I'm able to put the values using below code -

// Here Box is a webElement

JavascriptExecutor js = (JavascriptExecutor)iedriver; 
js.executeScript("arguments[0].value='1500';",box);

which is working as expected, but when I try to use box.sendKeys(Keys.Enter) it doesn't work. So what is the way I could achieve "pressing Enter key via JavaScript".

I have tried below code as well, but this is also not working.

Actions actions = new Actions(iedriver);
actions.moveToElement(box).sendKeys(Keys.RETURN).build().perform();

There is no error message, code executes but on web page Enter Key is not pressed.

Answer 1

If you want to do it via JavaScript you can consider using KeyboardEvent.initKeyBoardEvent() function like:

document.body.dispatchEvent(document.createEvent('KeyboardEvent').initKeyEvent(
'keydown', true, true, window, false, false, false, false, 13, 0));

However I wouldn't recommend looking into that direction, instead you could try calling submit() function on the WebElement as simple as:

box.submit();

Also going forward consider refactoring your test suite to make use of Page Object Model Design Pattern which allows you to abstract DOM elements representation from the test logic.

Answer 2

Have you tried using the Java Robot to press the enter key?

Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_ENTER);
robot.keyRelease(KeyEvent.VK_ENTER);

Don't forget the release key otherwise system will act as if the enter key is kept pressed down

reference: https://docs.oracle.com/javase/8/docs/api/java/awt/Robot.html