1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Test localStorage usage while in a low device storage situation</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="localStorageCommon.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript">
/*
This test does the following:
- Stores an item in localStorage.
- Checks the stored value.
- Emulates a low device storage situation.
- Gets the stored item again.
- Removes the stored item.
- Fails storing a new value.
- Emulates recovering from a low device storage situation.
- Stores a new value.
- Checks the stored value.
*/
function lowDeviceStorage(lowStorage) {
var data = lowStorage ? "full" : "free";
os().notifyObservers(null, "disk-space-watcher", data);
}
function startTest() {
// Add a test item.
localStorage.setItem("item", "value");
is(localStorage.getItem("item"), "value", "getItem()");
// Emulates a low device storage situation.
lowDeviceStorage(true);
// Checks that we can still access to the stored item.
is(localStorage.getItem("item"), "value",
"getItem() during a device storage situation");
// Removes the stored item.
localStorage.removeItem("item");
is(localStorage.getItem("item"), null,
"getItem() after removing the item");
// Fails storing a new item.
try {
localStorage.setItem("newItem", "value");
ok(false, "Storing a new item is expected to fail");
} catch(e) {
ok(true, "Got an expected exception " + e);
} finally {
is(localStorage.getItem("newItem"), null,
"setItem while device storage is low");
}
// Emulates recovering from a low device storage situation.
lowDeviceStorage(false);
// Add a test item after recovering from the low device storage situation.
localStorage.setItem("newItem", "value");
is(localStorage.getItem("newItem"), "value",
"getItem() with available storage");
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
</script>
</head>
<body onload="startTest();">
</body>
</html>
|
