IndexedDB: Update browser tests to test for IDB exception codes.

chrome/test/data/indexeddb/object_store_test.js

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function recordNotFound()
 {
   debug('Removed data can no longer be found');
 
   debug('Retrieving an index');
   shouldBe("objectStore.index('fname_index').name", "'fname_index'");
@@ skipping 22 matching lines @@
 
   shouldBe("event.result.fname", "'John'");
   shouldBe("event.result.lname", "'Doe'");
   shouldBe("event.result.id", "1");
 
   var result = objectStore.delete(1);
   result.onsuccess = removeSuccess;
   result.onerror = unexpectedErrorCallback;
 }
 
+function addWithSameKeyFailed()
+{
+  debug('Adding a record with same key failed');
+  shouldBe("event.code", "webkitIDBDatabaseException.CONSTRAINT_ERR");
+
+  var result = objectStore.get(1);
+  result.onsuccess = getSuccess;
+  result.onerror = unexpectedErrorCallback;
+}
+
 function dataAddedSuccess()
 {
   debug('Data added');
 
-  var result = objectStore.get(1);
-  result.onsuccess = getSuccess;
-  result.onerror = unexpectedErrorCallback;
+  debug('Try to add employee with same id');
+  var result = objectStore.add({fname: "Tom", lname: "Jones", id: 1});
+  result.onsuccess = unexpectedSuccessCallback;
+  result.onerror = addWithSameKeyFailed;
 }
 
 function populateObjectStore()
 {
   debug('Populating object store');
   deleteAllObjectStores(db);
   window.objectStore = db.createObjectStore('employees', {keyPath: 'id'});
   shouldBe("objectStore.name", "'employees'");
   shouldBe("objectStore.keyPath", "'id'");
 
@@ skipping 17 matching lines @@
   result.onerror = unexpectedErrorCallback;
 }
 
 function test()
 {
   debug('Connecting to indexedDB');
   var result = webkitIndexedDB.open('name');
   result.onsuccess = setVersion;
   result.onerror = unexpectedErrorCallback;
 }