docshell/test/test_bfcache_plus_hash.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=646641
   5 -->
   6 <head>
   7   <title>Test for Bug 646641</title>
   8   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   9   <script type="text/javascript" src="/tests/SimpleTest/WindowSnapshot.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  11 </head>
  12 <body>
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=646641">Mozilla Bug 646641</a>
  14 <p id="display"></p>
  15 <div id="content" style="display: none">
  16
  17 </div>
  18 <pre id="test">
  19 <script type="application/javascript;version=1.7">
  20
  21 /** Test for Bug 646641 **/
  22
  23 /*
  24  * In a popup (because navigating the main frame confuses Mochitest), do the
  25  * following:
  26  *
  27  *  * Call history.pushState().
  28  *  * Navigate to a new page.
  29  *  * Go back two history entries.
  30  *
  31  * Check that we go back, we retrieve the document from bfcache.
  32  */
  33
  34 SimpleTest.waitForExplicitFinish();
  35
  36 function debug(msg) {
  37   // Wrap dump so we can turn debug messages on and off easily.
  38   dump(msg + '\n');
  39 }
  40
  41 var expectedLoadNum = -1;
  42 function childLoad(n) {
  43   if (n == expectedLoadNum) {
  44     debug('Got load ' + n);
  45     expectedLoadNum = -1;
  46
  47     // Spin the event loop before calling gGen.next() so the generator runs
  48     // outside the onload handler.  This prevents us from encountering all
  49     // sorts of docshell quirks.
  50     //
  51     // (I don't know why I need to wrap gGen.next() in a function, but it
  52     // throws an error otherwise.)
  53     setTimeout(function() { gGen.next() }, 0);
  54   }
  55   else {
  56     debug('Got unexpected load ' + n);
  57     ok(false, 'Got unexpected load ' + n);
  58   }
  59 }
  60
  61 var expectedPageshowNum = -1;
  62 function childPageshow(n) {
  63   if (n == expectedPageshowNum) {
  64     debug('Got expected pageshow ' + n);
  65     expectedPageshowNum = -1;
  66     ok(true, 'Got expected pageshow ' + n);
  67     setTimeout(function() { gGen.next() }, 0);
  68   }
  69   else {
  70     debug('Got pageshow ' + n);
  71   }
  72
  73   // Since a pageshow comes along with an onload, don't fail the test if we get
  74   // an unexpected pageshow.
  75 }
  76
  77 function waitForLoad(n) {
  78   debug('Waiting for load ' + n);
  79   expectedLoadNum = n;
  80 }
  81
  82 function waitForShow(n) {
  83   debug('Waiting for show ' + n);
  84   expectedPageshowNum = n;
  85 }
  86
  87 function test() {
  88   var popup = window.open('data:text/html,' +
  89                           '<html><body onload="opener.childLoad(1)" ' +
  90                                       'onpageshow="opener.childPageshow(1)">' +
  91                                 'Popup 1' +
  92                                 '</body></html>');
  93   waitForLoad(1);
  94   yield undefined;
  95
  96   popup.history.pushState('', '', '');
  97
  98   popup.location = 'data:text/html,<html><body onload="opener.childLoad(2)">Popup 2</body></html>';
  99   waitForLoad(2);
 100   yield undefined;
 101
 102   // Now go back 2.  The first page should be retrieved from bfcache.
 103   popup.history.go(-2);
 104   waitForShow(1);
 105   yield undefined;
 106
 107   popup.close();
 108   SimpleTest.finish();
 109
 110   // Yield once more so we don't throw a StopIteration exception.
 111   yield undefined;
 112 }
 113
 114 var gGen = test();
 115 gGen.next();
 116
 117 </script>
 118 </pre>
 119 </body>
 120 </html>