<!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true AsyncOverflowScrollingEnabled=true AsyncFrameScrollingEnabled=true ] -->
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<script src="../../../resources/js-test.js"></script>
<script src="../../../resources/ui-helper.js"></script>
<style>
#scroller {
    overflow: scroll;
    scroll-snap-type: both mandatory;
    width: 500px;
    height: 500px;
}

.block {
    height: 500px;
    border: 1px solid black;
    box-sizing: border-box;
    scroll-snap-align: start;
}
</style>

<body onload="runTest()">
    <div id="scroller">
        <div class="block"></div>
        <div style="height: 500px"></div>
        <div class="block"></div>
        <div style="height: 5000px"></div>
        <div class="block"></div>
        <div class="block"></div>
    </div>
</body>

<script>
jsTestIsAsync = true;

async function runTest()
{
    description("Verifies that a momentum scroll always moves to the next or previous snap position no matter how far away it is.");

    if (!window.testRunner)
        return;

    await UIHelper.dragFromPointToPoint(150, 320, 150, 300, 0.01);
    await UIHelper.waitForTargetScrollAnimationToSettle(scroller);
    shouldBe("scroller.scrollTop", "1000");

    await UIHelper.dragFromPointToPoint(150, 320, 150, 300, 0.01);
    await UIHelper.waitForTargetScrollAnimationToSettle(scroller);
    shouldBe("scroller.scrollTop", "6500");

    await UIHelper.dragFromPointToPoint(150, 300, 150, 320, 0.01);
    await UIHelper.waitForTargetScrollAnimationToSettle(scroller);
    shouldBe("scroller.scrollTop", "1000");
   finishJSTest();
}
</script>
</html>