docshell/test/mochitest/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 src="/tests/SimpleTest/SimpleTest.js"></script>
   9   <script 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">
  20
  21 /** Test for Bug 646641 */
  22
  23 /**
  24  * Steps:
  25  * - Main page (this one) opens file_bfcache_plus_hash_1.html (subpage 1)
  26  * - subpage 1 sends msg { "childLoad", 1 }
  27  * - subpage 1 sends msg { "childPageshow", 1 }
  28  * - main page sends message "pushState"
  29  * - subpage 1 does pushState()
  30  * - subpage 1 navigates to file_bfcache_plus_hash_2.html (subpage 2)
  31  * - subpage 2 sends msg { "childLoad", 2 }
  32  * - subpage 2 sends msg { "childPageshow", 2 }
  33  * - main page sends msg "go-2"
  34  * - subpage 2 goes back two history entries
  35  * - subpage 1 sends msg  { "childPageshow", 1 }
  36  *  - Receiving only this msg shows we have retrieved the document from bfcache
  37  * - main page sends msg "close"
  38  * - subpage 1 sends msg "closed"
  39  */
  40 SimpleTest.waitForExplicitFinish();
  41
  42 function debug(msg) {
  43   // Wrap dump so we can turn debug messages on and off easily.
  44   dump(msg + "\n");
  45 }
  46
  47 var expectedLoadNum = -1;
  48 var expectedPageshowNum = -1;
  49
  50 function waitForLoad(n) {
  51   debug("Waiting for load " + n);
  52   expectedLoadNum = n;
  53 }
  54
  55 function waitForShow(n) {
  56   debug("Waiting for show " + n);
  57   expectedPageshowNum = n;
  58 }
  59
  60
  61
  62 function executeTest() {
  63   function* test() {
  64     window.open("file_bfcache_plus_hash_1.html", "", "noopener");
  65     waitForLoad(1);
  66     waitForShow(1);
  67     yield undefined;
  68     yield undefined;
  69
  70     bc1.postMessage("pushState");
  71
  72     waitForLoad(2);
  73     waitForShow(2);
  74     yield undefined;
  75     yield undefined;
  76
  77     // Now go back 2.  The first page should be retrieved from bfcache.
  78     bc2.postMessage("go-2");
  79     waitForShow(1);
  80     yield undefined;
  81
  82     bc1.postMessage("close");
  83   }
  84
  85   var bc1 = new BroadcastChannel("bug646641_1");
  86   var bc2 = new BroadcastChannel("bug646641_2");
  87   bc1.onmessage = (msgEvent) => {
  88     var msg = msgEvent.data.message;
  89     var n = msgEvent.data.num;
  90     if (msg == "childLoad") {
  91       if (n == expectedLoadNum) {
  92         debug("Got load " + n);
  93         expectedLoadNum = -1;
  94
  95         // Spin the event loop before calling gGen.next() so the generator runs
  96         // outside the onload handler.  This prevents us from encountering all
  97         // sorts of docshell quirks.
  98         setTimeout(function() { gGen.next(); }, 0);
  99       } else {
 100         debug("Got unexpected load " + n);
 101         ok(false, "Got unexpected load " + n);
 102       }
 103     } else if (msg == "childPageshow") {
 104       if (n == expectedPageshowNum) {
 105         debug("Got expected pageshow " + n);
 106         expectedPageshowNum = -1;
 107         ok(true, "Got expected pageshow " + n);
 108         setTimeout(function() { gGen.next(); }, 0);
 109       } else {
 110         debug("Got unexpected pageshow " + n);
 111         ok(false, "Got unexpected pageshow " + n);
 112       }
 113     } else if (msg == "closed") {
 114       bc1.close();
 115       bc2.close();
 116       SimpleTest.finish();
 117     }
 118   }
 119
 120   bc2.onmessage = bc1.onmessage;
 121
 122   var gGen = test();
 123
 124   // If Fission is disabled, the pref is no-op.
 125   SpecialPowers.pushPrefEnv({set: [["fission.bfcacheInParent", true]]}, () => {
 126     gGen.next();
 127   });
 128 }
 129 if (isXOrigin) {
 130   // Bug 1746646: Make mochitests work with TCP enabled (cookieBehavior = 5)
 131   // Acquire storage access permission here so that the BroadcastChannel used to
 132   // communicate with the opened windows works in xorigin tests. Otherwise,
 133   // the iframe containing this page is isolated from first-party storage access,
 134   // which isolates BroadcastChannel communication.
 135   SpecialPowers.wrap(document).notifyUserGestureActivation();
 136   SpecialPowers.addPermission("storageAccessAPI", true, window.location.href).then(() => {
 137     SpecialPowers.wrap(document).requestStorageAccess().then(() => {
 138       SpecialPowers.pushPrefEnv({
 139         set: [["privacy.partition.always_partition_third_party_non_cookie_storage", false]],
 140       }).then(() => {
 141         executeTest();
 142       });
 143     });
 144   });
 145 } else {
 146   executeTest();
 147 }
 148
 149
 150 </script>
 151 </pre>
 152 </body>
 153 </html>