test_hashchange_popstate_event_order.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=2015811

-->

<head>

  <title>Test for ordering of tasks from hashchange and popstate events on same-document navigation</title>

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

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

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=2015811">Mozilla Bug 2015811</a>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

  <script>

    SimpleTest.waitForExplicitFinish();

    onload = () => {

      history.pushState({}, "", "#/");

      let eventlog = [];

      onpopstate = () => {

        eventlog.push("popstate");

        setTimeout(() => {

          eventlog.push("timeout");

          is(eventlog.length, 3);

          is(eventlog[0], "popstate");

          is(eventlog[1], "hashchange");

          is(eventlog[2], "timeout");

          SimpleTest.finish();

});

};

      onhashchange = () => {

        eventlog.push("hashchange");

};

      history.back();

};

  </script>

</pre>

</body>

</html>