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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=640387
+-->
+<head>
+ <title>Test for Bug 640387</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"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=640387">Mozilla Bug 640387</a>
+
+<script type='application/javascript'>
+SimpleTest.waitForExplicitFinish();
+
+function* test() {
+ /* Spin the event loop so we get out of the onload handler. */
+ SimpleTest.executeSoon(function() { gGen.next(); });
+ yield undefined;
+
+ popup.history.pushState("", "", "#hash1");
+ popup.history.pushState("", "", "#hash2");
+
+ // Now the history looks like:
+ // file_bug640387.html
+ // file_bug640387.html#hash1
+ // file_bug640387.html#hash2 <-- current
+
+ // Going back should trigger a hashchange, which will wake us up from the
+ // yield.
+ popup.history.back();
+ yield undefined;
+ ok(true, "Got first hashchange.");
+
+ // Going back should wake us up again.
+ popup.history.back();
+ yield undefined;
+ ok(true, "Got second hashchange.");
+
+ // Now the history looks like:
+ // file_bug640387.html <-- current
+ // file_bug640387.html#hash1
+ // file_bug640387.html#hash2
+
+ // Going forward should trigger a hashchange.
+ popup.history.forward();
+ yield undefined;
+ ok(true, "Got third hashchange.");
+
+ // Now modify the history so it looks like:
+ // file_bug640387.html
+ // file_bug640387.html#hash1
+ // file_bug640387.html#hash1 <-- current
+ popup.history.pushState("", "", "#hash1");
+
+ // Now when we go back, we should not get a hashchange. Instead, wait for a
+ // popstate. We need to asynchronously go back because popstate is fired
+ // sync.
+ gHashchangeExpected = false;
+ gCallbackOnPopstate = true;
+ SimpleTest.executeSoon(function() { popup.history.back(); });
+ yield undefined;
+ ok(true, "Got popstate.");
+ gCallbackOnPopstate = false;
+
+ // Spin the event loop so hashchange has a chance to fire, if it's going to.
+ SimpleTest.executeSoon(function() { gGen.next(); });
+ yield undefined;
+
+ popup.close();
+ SimpleTest.finish();
+}
+
+var gGen = null;
+function childLoad() {
+ gGen = test();
+ gGen.next();
+}
+
+var gHashchangeExpected = true;
+function childHashchange() {
+ if (gHashchangeExpected) {
+ gGen.next();
+ } else {
+ ok(false, "Got hashchange when we weren't expecting one.");
+ }
+}
+
+var gCallbackOnPopstate = false;
+function childPopstate() {
+ if (gCallbackOnPopstate) {
+ gGen.next();
+ }
+}
+
+/* We need to run this test in a popup, because navigating an iframe
+ * back/forwards tends to cause intermittent orange. */
+var popup = window.open("file_bug640387.html");
+
+/* Control now flows up to childLoad(), called once the popup loads. */
+
+</script>
+
+</body>
+</html>