chromium/third_party/blink/web_tests/fast/events/touch/gesture/gesture-tap-on-hover-element.html

<!DOCTYPE html>
<html>
<script src="../../../../resources/js-test.js"></script>

<style type="text/css">
::-webkit-scrollbar {
    width: 0px;
    height: 0px;
}

div { 
    line-height: 100px;
}

#hoverme { 
    background-color: lightblue;
}

#clickme { 
    background-color: lightgreen;
    display: none; 
}

#dontclickme {
    background-color: yellow;
}

#hoverme:hover #clickme { 
    display: block;
}
</style>

<body style="margin:0">

<div id='hoverme'>Hover over me
  <div id='clickme'>Click me</div>
</div>
<div id='dontclickme'>Don't click me</div>

<p id="description"></p>
<p>See https://bugs.webkit.org/show_bug.cgi?id=103283 for details.</p>

<div id="console"></div>

<script>
description("Tests that a gesture tap is dispatched before the hover state on the active element is cleared.");

var clickMe = document.getElementById('clickme');
var dontClickMe = document.getElementById('dontclickme');
var clickMeCount = 0;
var dontClickMeCount = 0;

function runTests()
{
    if (!window.eventSender) {
        debug('This test requires DRT.');
        return;
    }

    if (!eventSender.gestureShowPress || !eventSender.gestureTap) {
        debug('GestureShowPress or GestureTap is not supported by this platform');
        return;
    }

    clickMe.addEventListener("click", function() { clickMeCount++; }, false);
    dontClickMe.addEventListener("click", function() { dontClickMeCount++; }, false);

    debug("The Click Me div should not be visible.");
    shouldBe("clickMe.offsetTop", "0");

    debug("The Click Me div should be visible after a GestureShowPress on the Hover Over Me div.");
    shouldBe(document.elementFromPoint(50, 50).id, "hoverme");
    eventSender.gestureShowPress(50, 50);
    shouldBe("clickMe.offsetTop", "100");

    debug("Tapping on the Click Me div should dispatch a click to the Click Me div and not to the Don't Click Me div and the Click Me div should still be visible.");
    shouldBe(document.elementFromPoint(150, 150).id, "clickme");
    eventSender.gestureTap(150, 150);
    shouldBe("clickMeCount", "1");
    shouldBe("dontClickMeCount", "0");
    shouldBe("clickMe.offsetTop", "100");
}

runTests();
</script>
</body>
</html>