src/third_party/WebKit/LayoutTests/imported/web-platform-tests/IndexedDB/idbcursor_iterating.htm

   1 <!DOCTYPE html>
   2 <title>IDBCursor.continue() - objectstore - delete next element, and iterate to it</title>
   3 <link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
   4 <script src="../../../resources/testharness.js"></script>
   5 <script src="../../../resources/testharnessreport.js"></script>
   6 <script src="support.js"></script>
   7
   8 <script>
   9     var db,
  10       count = 0,
  11       t = async_test(document.title, {timeout: 10000});
  12
  13     var open_rq = createdb(t);
  14     open_rq.onupgradeneeded = function(e) {
  15         db = e.target.result;
  16         var objStore = db.createObjectStore("test", { keyPath: "key" });
  17
  18         for (var i = 0; i < 500; i++)
  19             objStore.add({ key: i, val: "val_"+i });
  20
  21         var rq = objStore.add({ key: 500, val: "val_500" });
  22
  23         rq.onsuccess = t.step_func(function() {
  24             for (var i = 999; i > 500; i--)
  25                 objStore.add({ key: i, val: "val_"+i });
  26         });
  27
  28         objStore.createIndex('index', ['key', 'val']);
  29     };
  30
  31     open_rq.onsuccess = function(e) {
  32         var cursor_rq = db.transaction("test", "readwrite")
  33                           .objectStore("test")
  34                           .openCursor();
  35
  36         cursor_rq.onsuccess = t.step_func(function(e) {
  37             var cursor = e.target.result,
  38               store = e.target.source;
  39             if (!cursor) {
  40                 assert_equals(count, 997, "cursor run count");
  41
  42                 var rq = e.target.source.count();
  43                 rq.onsuccess = t.step_func(function(e) {
  44                     assert_equals(e.target.result, 995, "object count");
  45                     t.done();
  46                 });
  47                 return;
  48             }
  49
  50             switch (cursor.key) {
  51                 case 10:
  52                     assert_equals(count, cursor.key, "count");
  53                     store.delete(11);
  54                     break;
  55
  56                 case 12:
  57                 case 499:
  58                 case 500:
  59                 case 501:
  60                     assert_equals(count, cursor.key - 1, "count");
  61                     break;
  62
  63                 // Delete the next key
  64                 case 510:
  65                     store.delete(511);
  66                     break;
  67
  68                 // Delete randomly
  69                 case 512:
  70                     store.delete(611);
  71                     store.delete(499);
  72                     store.delete(500);
  73                     break;
  74
  75                 // Delete and add a new key
  76                 case 520:
  77                     store.delete(521);
  78                     store.add({ key: 521, val: "new"});
  79                     break;
  80
  81                 case 521:
  82                     assert_equals(cursor.value.val, "new");
  83                     break;
  84
  85                 // We should only be here once although we're basically making the index
  86                 // "heavier" with its new key.
  87                 case 530:
  88                     assert_equals(cursor.value.val, "val_530");
  89                     cursor.update({ key: 530, val: "val_531" })
  90
  91                     store.get(530).onsuccess = t.step_func(function(e) {
  92                         assert_equals(e.target.result.val, "val_531");
  93                     });
  94                     break;
  95
  96                 // Shouldn't happen.
  97                 case 11:
  98                 case 511:
  99                 case 611:
 100                     assert_unreached(cursor.key + " should be deleted and never run");
 101                     break;
 102             }
 103
 104             cursor.continue();
 105             count++;
 106         });
 107     };
 108 </script>
 109
 110 <div id="log"> </div>