test_bug1248128.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1248128

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 1248128</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

  <script type="application/javascript">

  SimpleTest.waitForExplicitFinish();

  SimpleTest.waitForFocus(function() {

    var outer = document.querySelector("html");

    ok(outer.scrollTop == 0, "scrollTop is zero: got " + outer.scrollTop);

    var input = document.getElementById("testInput");

    input.focus();

    var scroll = outer.scrollTop;

    ok(scroll > 0, "element has scrolled: new value " + scroll);

    try {

      SpecialPowers.doCommand(window, "cmd_moveLeft");

      ok(false, "should not be able to do kMoveLeft");

    } catch (e) {

      ok(true, "unable to perform kMoveLeft");

    ok(outer.scrollTop == scroll,

       "scroll is unchanged: got " + outer.scrollTop + ", expected " + scroll);

    // Make sure cmd_moveLeft isn't failing for some unrelated reason

    sendString("a");

    is(input.selectionStart, 1, "selectionStart after typing");

    SpecialPowers.doCommand(window, "cmd_moveLeft");

    is(input.selectionStart, 0, "selectionStart after move left");

    SimpleTest.finish();

});

  </script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1248128">Mozilla Bug 1248128</a>

<div style="height: 2000px;"></div>

<input type="text" id="testInput"></input>

<div style="height: 200px;"></div>

</body>

</html>