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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
<title>Indexed Database Property Test</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="text/javascript">
function* testSteps()
{
info("Setting up test fixtures: create an IndexedDB database and object store.");
let request = indexedDB.open(window.location.pathname, 1);
request.onerror = errorHandler;
request.onupgradeneeded = grabEventAndContinueHandler;
request.onsuccess = unexpectedSuccessHandler;
let event = yield undefined;
let db = event.target.result;
db.onerror = errorHandler;
let objectStore = db.createObjectStore("foo", { autoIncrement: true });
let index = objectStore.createIndex("foo", "index");
request.onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Let's create a blob and store it in IndexedDB twice.");
const BLOB_DATA = ["fun ", "times ", "all ", "around!"];
const INDEX_KEY = 5;
let blob = new Blob(BLOB_DATA, { type: "text/plain" });
let data = { blob, index: INDEX_KEY };
objectStore = db.transaction("foo", "readwrite").objectStore("foo");
objectStore.add(data).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Added blob to database once");
let key = event.target.result;
objectStore.add(data).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Added blob to database twice");
info("Let's retrieve the blob again and verify the contents is the same.");
objectStore = db.transaction("foo").objectStore("foo");
objectStore.get(key).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Got blob from database");
let fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(event.target.result.blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
info("Let's retrieve it again, create an object URL for the blob, load" +
"it via an XMLHttpRequest, and verify the contents is the same.");
objectStore = db.transaction("foo").objectStore("foo");
objectStore.get(key).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Got blob from database");
let blobURL = URL.createObjectURL(event.target.result.blob);
let xhr = new XMLHttpRequest();
xhr.open("GET", blobURL);
xhr.onload = grabEventAndContinueHandler;
xhr.send();
yield undefined;
URL.revokeObjectURL(blobURL);
is(xhr.responseText, BLOB_DATA.join(""), "Correct responseText");
info("Retrieve both blob entries from the database and verify contents.");
objectStore = db.transaction("foo").objectStore("foo");
objectStore.mozGetAll().onsuccess = grabEventAndContinueHandler;
event = yield undefined;
is(event.target.result.length, 2, "Got right number of items");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(event.target.result[0].blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
let cursorResults = [];
objectStore = db.transaction("foo").objectStore("foo");
objectStore.openCursor().onsuccess = function(event) {
let cursor = event.target.result;
if (cursor) {
info("Got item from cursor");
cursorResults.push(cursor.value);
cursor.continue();
}
else {
info("Finished cursor");
continueToNextStep();
}
};
yield undefined;
is(cursorResults.length, 2, "Got right number of items");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(cursorResults[0].blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
info("Retrieve blobs from database via index and verify contents.");
index = db.transaction("foo").objectStore("foo").index("foo");
index.get(INDEX_KEY).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
info("Got blob from database");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(event.target.result.blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
index = db.transaction("foo").objectStore("foo").index("foo");
index.mozGetAll().onsuccess = grabEventAndContinueHandler;
event = yield undefined;
is(event.target.result.length, 2, "Got right number of items");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(event.target.result[0].blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
cursorResults = [];
index = db.transaction("foo").objectStore("foo").index("foo");
index.openCursor().onsuccess = function(event) {
let cursor = event.target.result;
if (cursor) {
info("Got item from cursor");
cursorResults.push(cursor.value);
cursor.continue();
}
else {
info("Finished cursor");
continueToNextStep();
}
};
yield undefined;
is(cursorResults.length, 2, "Got right number of items");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(cursorResults[0].blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(cursorResults[1].blob);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
info("Slice the the retrieved blob and verify its contents.");
let slice = cursorResults[1].blob.slice(0, BLOB_DATA[0].length);
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(slice);
event = yield undefined;
is(event.target.result, BLOB_DATA[0], "Correct text");
info("Send blob to a worker, read its contents there, and verify results.");
function workerScript() {
/* eslint-env worker */
onmessage = function(event) {
var reader = new FileReaderSync();
postMessage(reader.readAsText(event.data));
var slice = event.data.slice(1, 2);
postMessage(reader.readAsText(slice));
};
}
let url =
URL.createObjectURL(new Blob(["(", workerScript.toString(), ")()"]));
let worker = new Worker(url);
worker.postMessage(slice);
worker.onmessage = grabEventAndContinueHandler;
event = yield undefined;
is(event.data, BLOB_DATA[0], "Correct text");
event = yield undefined;
is(event.data, BLOB_DATA[0][1], "Correct text");
info("Store a blob back in the database, and keep holding on to the " +
"blob, verifying that it still can be read.");
objectStore = db.transaction("foo").objectStore("foo");
objectStore.get(key).onsuccess = grabEventAndContinueHandler;
event = yield undefined;
let blobFromDB = event.target.result.blob;
info("Got blob from database");
let txn = db.transaction("foo", "readwrite");
txn.objectStore("foo").put(event.target.result, key);
txn.oncomplete = grabEventAndContinueHandler;
event = yield undefined;
info("Stored blob back into database");
fileReader = new FileReader();
fileReader.onload = grabEventAndContinueHandler;
fileReader.readAsText(blobFromDB);
event = yield undefined;
is(event.target.result, BLOB_DATA.join(""), "Correct text");
blobURL = URL.createObjectURL(blobFromDB);
xhr = new XMLHttpRequest();
xhr.open("GET", blobURL);
xhr.onload = grabEventAndContinueHandler;
xhr.send();
yield undefined;
URL.revokeObjectURL(blobURL);
is(xhr.responseText, BLOB_DATA.join(""), "Correct responseText");
finishTest();
}
</script>
<script type="text/javascript" src="helpers.js"></script>
</head>
<body onload="runTest();"></body>
</html>
|
