The Tor Browser: dom/tests/mochitest/sessionstorage/test

     1 <html xmlns="http://www.w3.org/1999/xhtml">

     2 <head>

     3 <title>sessionStorage basic test</title>

     5 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>

     6 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

     8 <script type="text/javascript">

    10 var expectedEvents = [

    11   "empty,null,",

    12   "empty,,null",

    13   "key1,null,value1",

    14   "key1,value1,null",

    15   "key1,null,value1",

    16   "key2,null,value2",

    17   "key2,value2,value2-2",

    18   "key1,value1,value1-2",

    19   "key2,value2-2,null",

    20   "null,null,null"

    21 ];

    23 function setup() {

    24   sessionStorage.clear();

    25   SimpleTest.executeSoon(startTest);

    26 }

    28 function startTest()

    29 {

    30   // Initially check the sessionStorage is empty

    31   is(sessionStorage.length, 0, "The storage is empty [1]");

    32   is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");

    33   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

    34   is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");

    35   is(sessionStorage.getItem("nonexisting"), null, "Nonexisting item is null (getItem())");

    36   is(sessionStorage["nonexisting"], undefined, "Nonexisting item is undefined (array access)");

    37   is(sessionStorage.nonexisting, undefined, "Nonexisting item is undefined (property access)");

    38   sessionStorage.removeItem("nonexisting"); // Just check there is no exception

    40   is(typeof sessionStorage.getItem("nonexisting"), "object", "getItem('nonexisting') is object");

    41   is(typeof sessionStorage["nonexisting"], "undefined", "['nonexisting'] is undefined");

    42   is(typeof sessionStorage.nonexisting, "undefined", "nonexisting is undefined");

    43   is(typeof sessionStorage.getItem("nonexisting2"), "object", "getItem('nonexisting2') is object");

    44   is(typeof sessionStorage["nonexisting2"], "undefined", "['nonexisting2'] is undefined");

    45   is(typeof sessionStorage.nonexisting2, "undefined", "nonexisting2 is undefined");

    47   var mozStorageChangedReceived = 0;

    48   var sessionStorageCopy = sessionStorage;

    50   function onStorageChanged(e) {

    51     if (e.storageArea == sessionStorageCopy) {

    52       ok(expectedEvents.length > 0, "Not more then expected events encountered");

    53       var receivedEvent = e.key + "," + e.oldValue + "," + e.newValue;

    54       is(receivedEvent, expectedEvents.shift(), "Expected event data: " + receivedEvent);

    55     }

    56   }

    58   // Listen for MozStorageChanged

    59   SpecialPowers.addChromeEventListener("MozStorageChanged", onStorageChanged, false);

    61   // add an empty-value key

    62   sessionStorage.setItem("empty", "");

    63   is(sessionStorage.getItem("empty"), "", "Empty value (getItem())");

    64   is(sessionStorage["empty"], "", "Empty value (array access)");

    65   is(sessionStorage.empty, "", "Empty value (property access)");

    66   is(typeof sessionStorage.getItem("empty"), "string", "getItem('empty') is string");

    67   is(typeof sessionStorage["empty"], "string", "['empty'] is string");

    68   is(typeof sessionStorage.empty, "string", "empty is string");

    69   sessionStorage.removeItem("empty");

    70   is(sessionStorage.length, 0, "The storage has no keys");

    71   is(sessionStorage.getItem("empty"), null, "empty item is null (getItem())");

    72   is(sessionStorage["empty"], undefined, "empty item is undefined (array access)");

    73   is(sessionStorage.empty, undefined, "empty item is undefined (property access)");

    74   is(typeof sessionStorage.getItem("empty"), "object", "getItem('empty') is object");

    75   is(typeof sessionStorage["empty"], "undefined", "['empty'] is undefined");

    76   is(typeof sessionStorage.empty, "undefined", "empty is undefined");

    78   // add one key, check it is there

    79   sessionStorage.setItem("key1", "value1");

    80   is(sessionStorage.length, 1, "The storage has one key-value pair");

    81   is(sessionStorage.key(0), "key1");

    82   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

    83   is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");

    85   // check all access method give the correct result

    86   // and are of the correct type

    87   is(sessionStorage.getItem("key1"), "value1", "getItem('key1') == value1");

    88   is(sessionStorage["key1"], "value1", "['key1'] == value1");

    89   is(sessionStorage.key1, "value1", "key1 == value1");

    91   is(typeof sessionStorage.getItem("key1"), "string", "getItem('key1') is string");

    92   is(typeof sessionStorage["key1"], "string", "['key1'] is string");

    93   is(typeof sessionStorage.key1, "string", "key1 is string");

    95   // remove the previously added key and check the storage is empty

    96   sessionStorage.removeItem("key1");

    97   is(sessionStorage.length, 0, "The storage is empty [2]");

    98   is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");

    99   is(sessionStorage.getItem("key1"), null, "\'key1\' removed");

   101   is(typeof sessionStorage.getItem("key1"), "object", "getItem('key1') is object");

   102   is(typeof sessionStorage["key1"], "undefined", "['key1'] is undefined");

   103   is(typeof sessionStorage.key1, "undefined", "key1 is undefined");

   105   // add one key, check it is there

   106   sessionStorage.setItem("key1", "value1");

   107   is(sessionStorage.length, 1, "The storage has one key-value pair");

   108   is(sessionStorage.key(0), "key1");

   109   is(sessionStorage.getItem("key1"), "value1");

   111   // add a second key

   112   sessionStorage.setItem("key2", "value2");

   113   is(sessionStorage.length, 2, "The storage has two key-value pairs");

   114   is(sessionStorage.getItem("key1"), "value1");

   115   is(sessionStorage.getItem("key2"), "value2");

   116   var firstKey = sessionStorage.key(0);

   117   var secondKey = sessionStorage.key(1);

   118   ok((firstKey == 'key1' && secondKey == 'key2') ||

   119      (firstKey == 'key2' && secondKey == 'key1'),

   120      'key() API works.');

   122   // change the second key

   123   sessionStorage.setItem("key2", "value2-2");

   124   is(sessionStorage.length, 2, "The storage has two key-value pairs");

   125   is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved

   126   is(sessionStorage.key(1), secondKey);

   127   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

   128   is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access");

   129   is(sessionStorage.getItem("key1"), "value1");

   130   is(sessionStorage.getItem("key2"), "value2-2");

   132   // change the first key

   133   sessionStorage.setItem("key1", "value1-2");

   134   is(sessionStorage.length, 2, "The storage has two key-value pairs");

   135   is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved

   136   is(sessionStorage.key(1), secondKey);

   137   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

   138   is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access");

   139   is(sessionStorage.getItem("key1"), "value1-2");

   140   is(sessionStorage.getItem("key2"), "value2-2");

   142   // remove the second key

   143   sessionStorage.removeItem("key2");

   144   is(sessionStorage.length, 1, "The storage has one key-value pair");

   145   is(sessionStorage.key(0), "key1");

   146   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

   147   is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");

   148   is(sessionStorage.getItem("key1"), "value1-2");

   150   // Clear the storage

   151   sessionStorage.clear();

   152   is(sessionStorage.length, 0, "The storage is empty [3]");

   153   is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");

   154   is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");

   155   is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");

   156   is(sessionStorage.getItem("nonexisting"), null, "Nonexisting item is null");

   157   is(sessionStorage.getItem("key1"), null, "key1 removed");

   158   is(sessionStorage.getItem("key2"), null, "key2 removed");

   159   sessionStorage.removeItem("nonexisting"); // Just check there is no exception

   160   sessionStorage.removeItem("key1"); // Just check there is no exception

   161   sessionStorage.removeItem("key2"); // Just check there is no exception

   163   SimpleTest.executeSoon(function () {

   164     SpecialPowers.removeChromeEventListener("MozStorageChanged", onStorageChanged, false);

   165     is(expectedEvents.length, 0, "received the correct number of events");

   167     sessionStorage.clear();

   168     SimpleTest.finish();

   169   });

   170 }

   172 SimpleTest.waitForExplicitFinish();

   174 </script>

   176 </head>

   178 <body onload="setup();">

   180 </body>

   181 </html>

The Tor Browser / file revision

dom/tests/mochitest/sessionstorage/test_sessionStorageBase.html@a63d609f5ebe

dom/tests/mochitest/sessionstorage/test_sessionStorageBase.html