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products/Sources/formale Sprachen/C/Firefox/docshell/test/navigation/test_bug1375833.html

<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <title>Test for Bug 1375833</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <script type="application/javascript">

    SimpleTest.waitForExplicitFinish();

    /**
     * Test for Bug 1375833. It tests for 2 things in a normal reload -
     * 1. Static frame history should not be dropped.
     * 2. In a reload, docshell would parse the reloaded root document and
     *    genearate new child docshells, and then use the child offset
     */

    let testWin = window.open("file_bug1375833.html");
    let count = 0;
    let webNav, shistory;
    let frameDocShellId;
    let chromeScript = null;
    if (SpecialPowers.Services.appinfo.sessionHistoryInParent) {
      chromeScript = SpecialPowers.loadChromeScript(() => {
        /* eslint-env mozilla/chrome-script */
        function doSend(message, fn) {
          try {
            sendAsyncMessage(message, {success: true, value: fn()});
          } catch(_) {
            sendAsyncMessage(message, {success: false});
          }
        }

        addMessageListener("test1", id => {
          doSend("test1", () => {
            let sessionHistory = BrowsingContext.get(id).top.sessionHistory;
            let entry = sessionHistory.getEntryAtIndex(sessionHistory.index);
            let frameEntry = entry.GetChildAt(0);
            return String(frameEntry.docshellID);
          })
        });
      });
    }

    window.addEventListener("message", async e => {
      switch (count++) {
        case 0:
          ok(e.data.endsWith("file_bug1375833-frame2.html"), "check location");

          webNav = SpecialPowers.wrap(testWin)
                                .docShell
                                .QueryInterface(SpecialPowers.Ci.nsIWebNavigation);
          shistory = webNav.sessionHistory;
          is(shistory.count, 2, "check history length");
          is(shistory.index, 1, "check history index");

          frameDocShellId = String(getFrameDocShell().historyID);
          ok(frameDocShellId, "sanity check for docshell ID");

          testWin.location.reload();
          break;
        case 1:
          ok(e.data.endsWith("file_bug1375833-frame2.html"), "check location");
          is(shistory.count, 4, "check history length");
          is(shistory.index, 3, "check history index");

          let newFrameDocShellId = String(getFrameDocShell().historyID);
          ok(newFrameDocShellId, "sanity check for docshell ID");
          is(newFrameDocShellId, frameDocShellId, "check docshell ID remains after reload");

          if (!SpecialPowers.Services.appinfo.sessionHistoryInParent) {
            let entry = shistory.legacySHistory.getEntryAtIndex(shistory.index);
            let frameEntry = entry.GetChildAt(0);
            is(String(frameEntry.docshellID), frameDocShellId, "check newly added shentry uses the same docshell ID");
          } else {
            let p = chromeScript.promiseOneMessage("test1");
            chromeScript.sendAsyncMessage("test1", SpecialPowers.wrap(testWin).browsingContext.id);
            let result = await p;
            ok(result.success, "legacySHistory worked around ok");
            is(result.value, frameDocShellId, "check newly added shentry uses the same docshell ID");
          }

          webNav.goBack();
          break;
        case 2:
          ok(e.data.endsWith("file_bug1375833-frame1.html"), "check location");
          is(shistory.count, 4, "check history length");
          is(shistory.index, 2, "check history index");

          webNav.goBack();
          break;
        case 3:
          ok(e.data.endsWith("file_bug1375833-frame2.html"), "check location");
          is(shistory.count, 4, "check history length");
          is(shistory.index, 1, "check history index");

          webNav.goBack();
          break;
        case 4:
          ok(e.data.endsWith("file_bug1375833-frame1.html"), "check location");
          is(shistory.count, 4, "check history length");
          is(shistory.index, 0, "check history index");

          if (chromeScript) {
            chromeScript.destroy();
          }
          testWin.close();
          SimpleTest.finish();
      }
    });

    function getFrameDocShell() {
      return SpecialPowers.wrap(testWin.window[0]).docShell;
    }

  </script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1375833">Mozilla Bug 1375833</a>
<p id="display"></p>
<div id="content" style="display: none">

</div>
<pre id="test">
</pre>
</body>
</html>

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