The Tor Browser: docshell/test/test_bfcache_plus

     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">

    17 </div>

    18 <pre id="test">

    19 <script type="application/javascript;version=1.7">

    21 /** Test for Bug 646641 **/

    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  */

    34 SimpleTest.waitForExplicitFinish();

    36 function debug(msg) {

    37   // Wrap dump so we can turn debug messages on and off easily.

    38   dump(msg + '\n');

    39 }

    41 var expectedLoadNum = -1;

    42 function childLoad(n) {

    43   if (n == expectedLoadNum) {

    44     debug('Got load ' + n);

    45     expectedLoadNum = -1;

    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 }

    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   }

    73   // Since a pageshow comes along with an onload, don't fail the test if we get

    74   // an unexpected pageshow.

    75 }

    77 function waitForLoad(n) {

    78   debug('Waiting for load ' + n);

    79   expectedLoadNum = n;

    80 }

    82 function waitForShow(n) {

    83   debug('Waiting for show ' + n);

    84   expectedPageshowNum = n;

    85 }

    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;

    96   popup.history.pushState('', '', '');

    98   popup.location = 'data:text/html,<html><body onload="opener.childLoad(2)">Popup 2</body></html>';

    99   waitForLoad(2);

   100   yield undefined;

   102   // Now go back 2.  The first page should be retrieved from bfcache.

   103   popup.history.go(-2);

   104   waitForShow(1);

   105   yield undefined;

   107   popup.close();

   108   SimpleTest.finish();

   110   // Yield once more so we don't throw a StopIteration exception.

   111   yield undefined;

   112 }

   114 var gGen = test();

   115 gGen.next();

   117 </script>

   118 </pre>

   119 </body>

   120 </html>

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