content/test/data/indexeddb/cursor_test.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 function emptyCursorSuccess()
   6 {
   7   debug('Empty cursor opened successfully.');
   8   done();
   9 }
  10
  11 function openEmptyCursor()
  12 {
  13   debug('Opening an empty cursor.');
  14   keyRange = IDBKeyRange.lowerBound('InexistentKey');
  15   request = objectStore.openCursor(keyRange);
  16   request.onsuccess = emptyCursorSuccess;
  17   request.onerror = unexpectedErrorCallback;
  18 }
  19
  20 function cursorSuccess()
  21 {
  22   var cursor = event.target.result;
  23   if (cursor === null) {
  24     debug('Cursor reached end of range.');
  25     openEmptyCursor();
  26     return;
  27   }
  28
  29   debug('Cursor opened successfully.');
  30   shouldBe("event.target.result.direction", "'next'");
  31   shouldBe("event.target.result.key", "3.14");
  32   shouldBe("event.target.result.value", "'myValue'");
  33
  34   cursor.continue();
  35 }
  36
  37 function openCursor(objectStore)
  38 {
  39   debug('Opening cursor');
  40   var keyRange = IDBKeyRange.lowerBound(3.12);
  41   var request = objectStore.openCursor(keyRange);
  42   request.onsuccess = cursorSuccess;
  43   request.onerror = unexpectedErrorCallback;
  44 }
  45
  46 function dataAddedSuccess()
  47 {
  48   debug('Data added');
  49   openCursor(objectStore);
  50 }
  51
  52 function populateObjectStore()
  53 {
  54   debug('Populating object store');
  55   db = event.target.result;
  56   deleteAllObjectStores(db);
  57   window.objectStore = db.createObjectStore('test');
  58   var request = objectStore.add('myValue', 3.14);
  59   request.onsuccess = dataAddedSuccess;
  60   request.onerror = unexpectedErrorCallback;
  61 }
  62
  63 function test() {
  64   indexedDBTest(populateObjectStore);
  65 }