src/third_party/WebKit/LayoutTests/imported/web-platform-tests/IndexedDB/idbcursor_continue_objectstore4.htm

   1 <!DOCTYPE html>
   2 <title>IDBCursor.continue() - object store - attempt to iterate to the next record when the direction is set for the previous record </title>
   3 <link rel="author" title="Microsoft" href="http://www.microsoft.com">
   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       t = async_test(),
  11       records = [ { pKey: "primaryKey_0" },
  12                   { pKey: "primaryKey_1" },
  13                   { pKey: "primaryKey_2" } ];
  14
  15     var open_rq = createdb(t);
  16     open_rq.onupgradeneeded = function(e) {
  17         db = e.target.result;
  18         var objStore = db.createObjectStore("test", { keyPath: "pKey" });
  19
  20         for (var i = 0; i < records.length; i++)
  21             objStore.add(records[i]);
  22     };
  23
  24     open_rq.onsuccess = function(e) {
  25         var count = 0,
  26           cursor_rq = db.transaction("test")
  27                         .objectStore("test")
  28                         .openCursor(null, "prev");
  29
  30         cursor_rq.onsuccess = t.step_func(function(e) {
  31             var cursor = e.target.result;
  32
  33             assert_true(cursor != null, "cursor exist");
  34
  35             switch(count) {
  36             case 0:
  37                 assert_equals(cursor.value.pKey, records[2].pKey, "first cursor pkey");
  38                 cursor.continue(records[1].pKey);
  39                 break;
  40
  41             case 1:
  42                 assert_equals(cursor.value.pKey, records[1].pKey, "second cursor pkey");
  43                 assert_throws("DataError",
  44                     function() { cursor.continue(records[2].pKey); });
  45                 t.done();
  46                 break;
  47
  48             default:
  49                 assert_unreached("Unexpected count value: " + count);
  50             }
  51
  52             count++;
  53         });
  54     };
  55 </script>
  56
  57 <div id="log"></div>