test_sessionStorageBase.html (8206B)
1 <html xmlns="http://www.w3.org/1999/xhtml"> 2 <head> 3 <title>sessionStorage basic test</title> 4 5 <script src="/tests/SimpleTest/SimpleTest.js"></script> 6 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 7 8 <script type="text/javascript"> 9 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 ]; 22 23 function setup() { 24 sessionStorage.clear(); 25 SimpleTest.executeSoon(startTest); 26 } 27 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 39 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"); 46 47 var sessionStorageCopy = sessionStorage; 48 49 function onStorageChanged(e) { 50 if (e.storageArea == sessionStorageCopy) { 51 ok(expectedEvents.length, "Not more then expected events encountered"); 52 var receivedEvent = e.key + "," + e.oldValue + "," + e.newValue; 53 is(receivedEvent, expectedEvents.shift(), "Expected event data: " + receivedEvent); 54 } 55 } 56 57 // Listen for MozSessionStorageChanged 58 SpecialPowers.addChromeEventListener("MozSessionStorageChanged", onStorageChanged, true); 59 60 // add an empty-value key 61 sessionStorage.setItem("empty", ""); 62 is(sessionStorage.getItem("empty"), "", "Empty value (getItem())"); 63 is(sessionStorage.empty, "", "Empty value (array access)"); 64 is(sessionStorage.empty, "", "Empty value (property access)"); 65 is(typeof sessionStorage.getItem("empty"), "string", "getItem('empty') is string"); 66 is(typeof sessionStorage.empty, "string", "['empty'] is string"); 67 is(typeof sessionStorage.empty, "string", "empty is string"); 68 sessionStorage.removeItem("empty"); 69 is(sessionStorage.length, 0, "The storage has no keys"); 70 is(sessionStorage.getItem("empty"), null, "empty item is null (getItem())"); 71 is(sessionStorage.empty, undefined, "empty item is undefined (array access)"); 72 is(sessionStorage.empty, undefined, "empty item is undefined (property access)"); 73 is(typeof sessionStorage.getItem("empty"), "object", "getItem('empty') is object"); 74 is(typeof sessionStorage.empty, "undefined", "['empty'] is undefined"); 75 is(typeof sessionStorage.empty, "undefined", "empty is undefined"); 76 77 // add one key, check it is there 78 sessionStorage.setItem("key1", "value1"); 79 is(sessionStorage.length, 1, "The storage has one key-value pair"); 80 is(sessionStorage.key(0), "key1"); 81 is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access"); 82 is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access"); 83 84 // check all access method give the correct result 85 // and are of the correct type 86 is(sessionStorage.getItem("key1"), "value1", "getItem('key1') == value1"); 87 is(sessionStorage.key1, "value1", "['key1'] == value1"); 88 is(sessionStorage.key1, "value1", "key1 == value1"); 89 90 is(typeof sessionStorage.getItem("key1"), "string", "getItem('key1') is string"); 91 is(typeof sessionStorage.key1, "string", "['key1'] is string"); 92 is(typeof sessionStorage.key1, "string", "key1 is string"); 93 94 // remove the previously added key and check the storage is empty 95 sessionStorage.removeItem("key1"); 96 is(sessionStorage.length, 0, "The storage is empty [2]"); 97 is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access"); 98 is(sessionStorage.getItem("key1"), null, "\'key1\' removed"); 99 100 is(typeof sessionStorage.getItem("key1"), "object", "getItem('key1') is object"); 101 is(typeof sessionStorage.key1, "undefined", "['key1'] is undefined"); 102 is(typeof sessionStorage.key1, "undefined", "key1 is undefined"); 103 104 // add one key, check it is there 105 sessionStorage.setItem("key1", "value1"); 106 is(sessionStorage.length, 1, "The storage has one key-value pair"); 107 is(sessionStorage.key(0), "key1"); 108 is(sessionStorage.getItem("key1"), "value1"); 109 110 // add a second key 111 sessionStorage.setItem("key2", "value2"); 112 is(sessionStorage.length, 2, "The storage has two key-value pairs"); 113 is(sessionStorage.getItem("key1"), "value1"); 114 is(sessionStorage.getItem("key2"), "value2"); 115 var firstKey = sessionStorage.key(0); 116 var secondKey = sessionStorage.key(1); 117 ok((firstKey == 'key1' && secondKey == 'key2') || 118 (firstKey == 'key2' && secondKey == 'key1'), 119 'key() API works.'); 120 121 // change the second key 122 sessionStorage.setItem("key2", "value2-2"); 123 is(sessionStorage.length, 2, "The storage has two key-value pairs"); 124 is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved 125 is(sessionStorage.key(1), secondKey); 126 is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access"); 127 is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access"); 128 is(sessionStorage.getItem("key1"), "value1"); 129 is(sessionStorage.getItem("key2"), "value2-2"); 130 131 // change the first key 132 sessionStorage.setItem("key1", "value1-2"); 133 is(sessionStorage.length, 2, "The storage has two key-value pairs"); 134 is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved 135 is(sessionStorage.key(1), secondKey); 136 is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access"); 137 is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access"); 138 is(sessionStorage.getItem("key1"), "value1-2"); 139 is(sessionStorage.getItem("key2"), "value2-2"); 140 141 // remove the second key 142 sessionStorage.removeItem("key2"); 143 is(sessionStorage.length, 1, "The storage has one key-value pair"); 144 is(sessionStorage.key(0), "key1"); 145 is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access"); 146 is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access"); 147 is(sessionStorage.getItem("key1"), "value1-2"); 148 149 // Clear the storage 150 sessionStorage.clear(); 151 is(sessionStorage.length, 0, "The storage is empty [3]"); 152 is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access"); 153 is(sessionStorage.key(-1), 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.getItem("nonexisting"), null, "Nonexisting item is null"); 156 is(sessionStorage.getItem("key1"), null, "key1 removed"); 157 is(sessionStorage.getItem("key2"), null, "key2 removed"); 158 sessionStorage.removeItem("nonexisting"); // Just check there is no exception 159 sessionStorage.removeItem("key1"); // Just check there is no exception 160 sessionStorage.removeItem("key2"); // Just check there is no exception 161 162 SimpleTest.executeSoon(function () { 163 SpecialPowers.removeChromeEventListener("MozSessionStorageChanged", onStorageChanged, true); 164 is(expectedEvents.length, 0, "received the correct number of events"); 165 166 sessionStorage.clear(); 167 SimpleTest.finish(); 168 }); 169 } 170 171 SimpleTest.waitForExplicitFinish(); 172 173 </script> 174 175 </head> 176 177 <body onload="setup();"> 178 179 </body> 180 </html>