SQLResultRowList.item converts row into map.

tests/html/websql_test.dart

 #library('WebDBTest');
 #import('../../pkg/unittest/unittest.dart');
 #import('../../pkg/unittest/html_config.dart');
 #import('dart:html');
 
 void fail(message) {
   guardAsync(() {
       Expect.fail(message);
     });
 }
@@ skipping 87 matching lines @@
 
     createTransaction(db)
       // Attempt to clear out any tables which may be lurking from previous
       // runs.
       .chain(dropTable(tableName, true))
       .chain(createTable(tableName, columnName))
       .chain(insert(tableName, columnName, 'Some text data'))
       .chain(queryTable(tableName, (resultSet) {
         guardAsync(() {
           Expect.equals(1, resultSet.rows.length);
-
-          // Should validate the rowData contents- need to be able to map the JS
-          // object back to regular types.
+          var row = resultSet.rows.item(0);
+          Expect.isTrue(row.containsKey(columnName));
+          Expect.equals('Some text data', row[columnName]);
         });
       }))
       .chain(dropTable(tableName))
       .then(expectAsync1((tx) {}));
   });
 }