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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1375833
+-->
+<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>