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      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 test()
      6 {
      7   if (document.location.hash === '#part1') {
      8     testPart1();
      9   } else if (document.location.hash === '#part2') {
     10     testPart2();
     11   } else if (document.location.hash === '#part3') {
     12     testPart3();
     13   } else {
     14     result('fail - unexpected hash');
     15   }
     16 }
     17 
     18 function testPart1()
     19 {
     20   // Prepare the database, then exit normally
     21 
     22   // Set version 1, create store1
     23   var delreq = window.indexedDB.deleteDatabase('version-change-crash');
     24   delreq.onerror = unexpectedErrorCallback;
     25   delreq.onsuccess = function() {
     26     var openreq = window.indexedDB.open('version-change-crash', 1);
     27     openreq.onerror = unexpectedErrorCallback;
     28     openreq.onblocked = unexpectedBlockedCallback;
     29     openreq.onupgradeneeded = function(e) {
     30       openreq.result.createObjectStore('store1');
     31     };
     32     openreq.onsuccess = function(e) {
     33       result('pass - part1 - complete');
     34     };
     35   };
     36 }
     37 
     38 function testPart2()
     39 {
     40   // Start a VERSION_CHANGE then crash
     41 
     42   // Set version 2, twiddle stores and crash
     43   var openreq = window.indexedDB.open('version-change-crash', 2);
     44   openreq.onerror = unexpectedErrorCallback;
     45   openreq.onblocked = unexpectedBlockedCallback;
     46   openreq.onsuccess = unexpectedSuccessCallback;
     47   openreq.onupgradeneeded = function(e) {
     48     var db = openreq.result;
     49     var transaction = openreq.transaction;
     50     transaction.onabort = unexpectedAbortCallback;
     51     transaction.oncomplete = unexpectedCompleteCallback;
     52 
     53     var store = db.createObjectStore('store2');
     54     result('pass - part2 - crash me');
     55 
     56     // Keep adding to the transaction so it can't commit
     57     (function loop() { store.put(0, 0).onsuccess = loop; }());
     58   };
     59 }
     60 
     61 function testPart3()
     62 {
     63   // Validate that Part 2 never committed
     64 
     65   // Check version
     66   var openreq = window.indexedDB.open('version-change-crash');
     67   openreq.onerror = unexpectedErrorCallback;
     68   openreq.onblocked = unexpectedBlockedCallback;
     69   openreq.onupgradeneeded = unexpectedUpgradeNeededCallback;
     70   openreq.onsuccess = function(e) {
     71     var db = openreq.result;
     72     if (db.version !== 1) {
     73       result('fail - version incorrect');
     74       return;
     75     }
     76 
     77     if (!db.objectStoreNames.contains('store1')) {
     78       result('fail - store1 does not exist');
     79       return;
     80     }
     81 
     82     if (db.objectStoreNames.contains('store2')) {
     83       result('fail - store2 exists');
     84       return;
     85     }
     86 
     87     result('pass - part3 - rolled back');
     88   };
     89 }
     90