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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test for page up/down in collapsed select (bug 1488828)</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script>
  SimpleTest.waitForExplicitFinish();

  function test() {
    let select = document.getElementById("select");
    select.focus();
    is(select.selectedIndex, 0, "Option 0 initially selected");
    synthesizeKey("KEY_PageDown", {});
    ok(select.selectedIndex >= 2, "PageDown skips more than 1 option");
    ok(select.selectedIndex < 49, "PageDown does not move to the last option");
    synthesizeKey("KEY_PageUp", {});
    is(select.selectedIndex, 0, "PageUp skips more than 1 option");
    SimpleTest.finish();
  }
</script>
</head>
<body onload="test()">
<div>
  <select id="select" size="1">
    <option selected>0</option>
  </select>
  <script>
    // Add more options so we have 50 in total.
    let select = document.getElementById("select");
    for (let i = 1; i <= 49; ++i) {
      let option = document.createElement("option");
      option.textContent = i;
      select.appendChild(option);
    }
  </script>
</div>
<pre id="test">
</pre>
</body>
</html>