scrollend-fires-to-text-input.html

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This WPT test may be referenced by the following Test IDs:
- /dom/events/scrolling/scrollend-fires-to-text-input.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

  </head>

  <body>

    <style>

      #inputscroller {

        width: 100px;

        height: 50px;

    </style>

    <input type="text" id="inputscroller"

    value="qwertyuiopasddfghjklzxcvbnmqwertyuiopasddfghjklzxcvbnmqwer">

    <script>

      promise_test(async() => {

        const inputscroller = document.getElementById("inputscroller");

        assert_equals(inputscroller.scrollLeft, 0,

          "text input field is not initially scrolled.");

        const scrollend_promise = new Promise((resolve) => {

          inputscroller.addEventListener("scrollend", resolve);

});

        inputscroller.scrollLeft = 10;

        await scrollend_promise;

        assert_equals(inputscroller.scrollLeft, 10,

          "text input field is scrolled by the correct amount");

      }, "scrolled input field should receive scrollend.");

    </script>

  </body>

</html>