LayoutTests/accessibility/mac/dynamic-selection.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>

Foo <span id="span-one">bar baz</span>
One <span id="span-two">two three</span>

<script>
var output = "This test ensures we update the accessibility tree when selected text changes dynamically.\n\n";

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

    var webArea = accessibilityController.rootElement.childAtIndex(0);
    var selectedRange;
    setTimeout(async function() {
        selectedRange = await selectElementTextById("span-one", webArea);
        output += expect("webArea.stringForTextMarkerRange(selectedRange)", "'bar baz'");

        selectedRange = await selectElementTextById("span-two", webArea);
        output += expect("webArea.stringForTextMarkerRange(selectedRange)", "'two three'");

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