LayoutTests/accessibility/insert-newline.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../resources/accessibility-helper.js"></script>
<script src="../resources/js-test.js"></script>
</head>
<body>

<div id="contenteditable" contenteditable tabindex="0">helloworld</div>

<script>
var output = "This test exercises a combination of selectedTextRange, stringForRange, and newline manipulation.\n\n";

if (window.accessibilityController) {
    window.jsTestIsAsync = true;

    var contenteditable;
    setTimeout(async function() {
        contenteditable = await waitForFocus("contenteditable");
        contenteditable.setSelectedTextRange(5, 0);

        output += await expectAsync("contenteditable.selectedTextRange", "'{5, 0}'");
        contenteditable.insertText("\n");
        output += await expectAsync("contenteditable.stringForRange(0, 11).replace(new RegExp('(?:\\r\\n|\\r|\\n)', 'g'), '[newline]')", "'hello[newline]world'");

        output += await expectAsync("contenteditable.selectedTextRange", "'{6, 0}'");
        output += await expectAsync("contenteditable.stringForRange(6, 5)", "'world'");

        debug(output);
        finishJSTest();
    }, 0);
}
</script>
</body>
</html>