content/test/data/indexeddb/empty_blob.html

   1 <!DOCTYPE html>
   2 <html>
   3 <!--
   4   Copyright 2015 The Chromium Authors. All rights reserved.
   5   Use of this source code is governed by a BSD-style license that can be
   6   found in the LICENSE file.
   7 -->
   8 <head>
   9 <title>IDB Test that we can store and retrieve an empty blob</title>
  10 <script src="common.js"></script>
  11 <script>
  12
  13 // Constants.
  14 var store_name = 'empty_blob';
  15 var blob_key = 'blob_key';
  16 var file_key = 'file_key';
  17
  18 // Shared variables.
  19 var db;
  20 var emptyFileInput;
  21 var testTimes = false;
  22
  23 function test() {
  24   param = location.hash.substring(1);
  25   if (param == 'ignoreTimes') {
  26     testTimes = false;
  27   }
  28   indexedDBTest(prepareDatabase, writeBlob);
  29 }
  30
  31 function prepareDatabase() {
  32   db = event.target.result;
  33   db.createObjectStore(store_name);
  34 }
  35
  36 function writeBlob() {
  37   debug("Writing blob.");
  38
  39   put_blob = new Blob();
  40
  41   var put_tx = db.transaction(store_name, 'readwrite');
  42   put_tx.onabort = unexpectedAbortCallback;
  43   var put_request = put_tx.objectStore(store_name).put(put_blob, blob_key);
  44   put_request.onerror = unexpectedErrorCallback;
  45   put_tx.oncomplete = function () {
  46     var get_tx = db.transaction(store_name);
  47
  48     var get_request1 = get_tx.objectStore(store_name).get(blob_key);
  49     get_request1.onerror = unexpectedErrorCallback;
  50     get_request1.onsuccess = function(evt) {
  51       get_blob1 = evt.target.result;
  52       resultType = typeof get_blob1;
  53       shouldBe('resultType', '"object"');
  54       shouldBe('get_blob1.size', 'put_blob.size');
  55     };
  56
  57     var get_request2 = get_tx.objectStore(store_name).get(blob_key);
  58     get_request2.onerror = unexpectedErrorCallback;
  59     get_request2.onsuccess = function(evt) {
  60       get_blob2 = evt.target.result;
  61       resultType = typeof get_blob2;
  62       shouldBe('resultType', '"object"');
  63       shouldBe('get_blob2.size', 'put_blob.size');
  64     };
  65
  66     get_tx.onabort = unexpectedAbortCallback;
  67     get_tx.oncomplete = writeFile;
  68   };
  69 }
  70
  71 function writeFile() {
  72   put_file = new File([''], 'somefile', {
  73       type: 'application/x-special-snowflake',
  74       lastModified: new Date('1999-12-31T23:59:59Z')
  75   });
  76   var put_tx = db.transaction(store_name, 'readwrite');
  77   put_tx.objectStore(store_name).put(put_file, file_key);
  78   put_tx.onabort = unexpectedAbortCallback;
  79   put_tx.oncomplete = function() {
  80     var get_tx = db.transaction(store_name);
  81     get_tx.objectStore(store_name).get(file_key).onsuccess = function(e) {
  82       get_file = e.target.result;
  83
  84       shouldBe('get_file.name', 'put_file.name');
  85       shouldBe('get_file.size', 'put_file.size');
  86       shouldBe('get_file.type', 'put_file.type');
  87       if (testTimes) {
  88         shouldBe('get_file.lastModified', 'put_file.lastModified');
  89         shouldBe('String(get_file.lastModifiedDate)', 'String(put_file.lastModifiedDate)');
  90       }
  91     };
  92     get_tx.onabort = unexpectedAbortCallback;
  93     get_tx.oncomplete = deleteFile;
  94   };
  95 }
  96
  97 function deleteFile() {
  98   var tx = db.transaction(store_name, 'readwrite');
  99   tx.objectStore(store_name).delete(file_key);
 100   tx.onabort = unexpectedAbortCallback;
 101   tx.oncomplete = deleteBlob;
 102 }
 103
 104 function deleteBlob() {
 105   var tx = db.transaction(store_name, 'readwrite');
 106   tx.objectStore(store_name).delete(blob_key);
 107   tx.onabort = unexpectedAbortCallback;
 108   tx.oncomplete = done;
 109 }
 110
 111 </script>
 112 </head>
 113 <body onLoad="test()">
 114   <div id="status">Starting...</div>
 115 </body>
 116 </html>